Author: claimsbot

1. A manually operable sealant applicator, comprising:
a) at least two supply pathways for respectfully supplying at least two sealant agents;
b) a dispensing pathway for dispensing a mixture of the at least two sealant agents, the dispensing pathway communicating with the at least two supply pathways; and
c) a manually actuable clearing member to move undesired materials along the dispensing pathway, the clearing member comprising an impeller having an elongated member, a head portion insertable into, and forcibly movable along the dispensing pathway, and an elongated portion extending externally of the dispensing pathway for effecting movement of the head portion along the dispensing pathway.
2. A manually operable sealant applicator, comprising:
a) at least two supply pathways for respectfully supplying at least two sealant agents;
b) a dispensing pathway for dispensing a mixture of the at least two sealant agents, the dispensing pathway communicating with the at least two supply pathways; and
c) a manually actuable clearing member to move undesired materials along the dispensing pathway, the clearing member comprising a plunger movable through a mixing volume and configured to clear the mixing volume, the plunger traveling along the dispensing pathway in the dispensing direction.
3. The applicator according to claim 2 wherein the plunger is configured to slide within the dispensing pathway to dislodge and drive solids along the dispensing pathway in the dispensing direction.
4. The applicator according to claim 3 wherein the dispensing pathway has a substantially constant cross-section throughout the length of the dispensing pathway.
5. The applicator according to claim 2 wherein the dispensing pathway tapers distally and having a cross-sectional area which diminishes in a dispensing direction, the plunger comprising a head of variable dimension to be accommodated within the dispensing pathway.
6. The applicator according to claim 2 wherein the dispensing pathway increases in cross-sectional area in the distal direction to aid in expulsion of undesired solid material from the dispensing pathway.
7. The applicator according to claim 2 wherein the dispensing pathway is substantially recti-linear and the plunger is substantially rigid and has a straight configuration.
8. The applicator according to claim 2 wherein the dispensing pathway is curved and the plunger has a curved configuration to be accommodated within the dispensing pathway.
9. A manually operable seal applicator, comprising:
a) at least two supply pathways for respectfully supplying at least two sealant agents;
b) a dispensing pathway for dispensing a mixture of the at least two sealant agents, the dispensing pathway communicating with the at least two supply pathways; and
c) a manually actuable clearing member to move undesired materials along the dispensing pathway, the clearing member comprising a plunger movable through the dispensing pathway wherein the plunger includes a distally extending portion insertable into the dispensing pathway, the plunger configured to be resiliently deformable and having a non-conforming configuration to engage the inner surface of the dispensing pathway.
10. The applicator according to claim 9 wherein the dispensing pathway is straight and the plunger is curved about an axis perpendicular to the direction of the dispensing pathway.
11. A manually operable sealant applicator, comprising:
a) at least two supply pathways for respectively supplying at least two sealant agents;
b) a dispensing pathway for dispensing a mixture of the at least two sealant agents, the dispensing pathway communicating with the at least two supply pathways; and
c) a manually actuable clearing member to move undesired materials along the dispensing pathway, the clearing member comprising a plunger having a head, the applicator comprising a wiper to clean the head of the plunger when retracting.
12. A manually operable sealant applicator, comprising:
a) at least two supply pathways for respectfully supplying at least two sealant agents;
b) a dispensing pathway for dispensing a mixture of the at least two sealant agents, dispensing pathway communicating with the at least two supply pathways; and
c) a manually actuable clearing member to move undesired materials along the dispensing pathway, the clearing member comprising a rod-like plunger, the applicator having a clearing port opening externally and aligned with the dispensing pathway to permit the plunger to be manually inserted into the dispensing pathway.
13. The sealant applicator according to claim 12 wherein the dispensing pathway comprises a valve movable between a close dispensing position and an open clearing position wherein the dispensing pathway communicates with the clearing port through the valve port in the clearing position.
14. A manually operable sealant applicator, comprising:
a) a variable volume reservoir for a sealant, the sealant being dischargeable from a sealant reservoir by manually effected volume reductions;
b) a dispensing pathway for dispensing the sealant, the dispensing pathway communicating with the sealant reservoir to receive the sealant therefrom;
c) a clearing valve communicating with the dispensing pathway and being movable between the dispensing position and a clearing position, the clearing valve providing access to the dispensing pathway in the clearing position; and
d) a manually actuable clearing member operable through the access provided by the clearing valve to move undesired materials along the dispensing pathway, the clearing member comprising a reciprocatable plunger configured to dislodge undesired materials therein and retractable to permit sealant dispensing.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An architecture for transferring data from a first device to a second device, comprising:
a) a clock recovery loop receiving said data from said first device, said clock recovery loop providing a recovered clock signal;
b) a filter circuit configured to filter information from said recovered clock signal and provide a transmitter clock adjustment signal that adjusts said transmitter clock in response to inputs from (i) said clock recovery loop and (ii) a transmitter clock circuit; and
c) a transmitter in communication with said filter circuit, configured to receive said transmitter clock adjustment signal and transmit said data to said second device in accordance with said transmitter clock signal.
2. The architecture of claim 1, further comprising a receiver in communication with said clock recovery loop and said filter circuit, configured to receive said data from a network.
3. The architecture of claim 1, wherein said clock recovery loop comprises a first phase detector configured to determine a phase difference between said recovered clock signal and either a reference clock signal or said data.
4. The architecture of claim 3, wherein said clock recovery loop further comprises a recovered clock adjustment circuit configured to adjust said recovered clock signal in response to said phase difference.
5. The architecture of claim 4, wherein said recovered clock adjustment circuit provides a recovered clock adjustment signal in response to said phase difference.
6. The architecture of claim 5, wherein said input from said clock recovery loop comprises said recovered clock adjustment signal, and said filter circuit is further configured to filter said recovered clock adjustment signal.
7. The architecture of claim 6, wherein said filter circuit is further configured to provide said transmitter clock adjustment signal in response to said filtered recovered clock adjustment signal and said input from said transmitter clock circuit.
8. The architecture of claim 7, wherein said input from said transmitter clock circuit comprises said transmitter clock signal.
9. The architecture of claim 8, wherein said filter circuit provides said transmitter clock adjustment signal in further response to said recovered clock signal, said filter circuit being further configured to determine a phase difference between said transmitter clock signal and said recovered clock signal.
10. The architecture of claim 1, wherein said filter circuit comprises a jitter reduction circuit configured to reduce jitter in said input from said clock recovery loop and provide a filtered clock information signal in response thereto.
11. The architecture of claim 10, wherein said filter circuit further comprises a clock alignment block configured to (i) receive said recovered clock signal and said transmitter clock signal and (ii) provide a data transfer control signal in response thereto.
12. The architecture of claim 11, wherein said filter circuit further comprises a logic circuit configured to mathematically combine said data transfer control signal and said filtered clock information signal and provide said transmitter clock adjustment signal in response thereto.
13. The architecture of claim 1, wherein said transmitter is configured to transmit serial data.
14. A circuit for facilitating data transfer, comprising:
a) a clock alignment block configured to (i) receive first and second periodic signals and (ii) provide a data transfer control signal in response thereto;
b) a first filter circuit configured to receive first periodic signal information and provide a filtered clock information signal in response thereto; and
c) a logic circuit configured to combine said data transfer control signal and said filtered clock information signal and provide an adjustment signal for said second periodic signal in response thereto.
15. The circuit of claim 14, wherein said first and second periodic signals comprise a recovered clock signal and a transmitter clock signal.
16. The circuit of claim 14, wherein said clock alignment block comprises a first phase detector configured to receive said first and second periodic signals.
17. The circuit of claim 16, wherein said clock alignment block further comprises a second filter circuit configured to filter an output of said phase detector and provide said data transfer control signal.
18. The circuit of claim 17, wherein said second filter circuit comprises a multiplier configured to multiply said output of said phase detector by a first coefficient.
19. The circuit of claim 18, wherein said second filter circuit further comprises a first integrator configured to integrate an output of said multiplier and provide said data transfer control signal.
20. The circuit of claim 14, wherein said first filter circuit comprises a frequency tracking loop.
21. The circuit of claim 20, wherein said frequency tracking loop comprises a first adder configured to add said first periodic signal information and said filtered clock information signal.
22. The circuit of claim 21, wherein said frequency tracking loop further comprises a second multiplier configured to multiply an output of said first adder by a second coefficient.
23. The circuit of claim 22, wherein said frequency tracking loop further comprises a second integrator configured to provide said filtered clock information signal.
24. The circuit of claim 21, wherein said first filter circuit further comprises a phase adjustment circuit configured to receive said output of said first adder and provide a phase adjustment signal in response thereto.
25. The circuit of claim 24, wherein said phase adjustment circuit comprises (i) a third multiplier configured to multiply an output of said first adder by a third coefficient, and (ii) a third integrator configured to provide said phase adjustment signal.
26. The circuit of claim 14, wherein said logic circuit comprises a second adder.
27. A system, comprising:
a) the architecture of claim 1; and
b) a receiver communicatively coupled to said clock recovery loop, configured to receive said data from a network and transfer said data to said transmitter.
28. The system of claim 27, further comprising an oscillator configured to provide a reference clock signal to said transmitter and said receiver.
29. The system of claim 27, embodied on a single integrated circuit.
30. The system of claim 27, wherein said receiver is further configured to convert serial data from a network to parallel data for the transmitter.
31. The system of claim 30, wherein said receiver further comprises a deserializer operating in accordance with the recovered clock signal.
32. The system of claim 30, wherein said transmitter is further configured to convert parallel data from the receiver to serial data for transmission to a destination device.
33. The system of claim 32, wherein said transmitter further comprises a serializer operating in accordance with the transmitter clock signal.
34. The system of claim 27, further comprising a first port communicatively coupled to said receiver and a second port communicatively coupled to said transmitter, each of said first and second ports being configured to communicate with one or more external devices.
35. A multiport device, comprising:
a) a plurality of receivers, each coupled to a unique one of a plurality of clock recovery loops,
b) a plurality of transmitters, each coupled to a unique one of a plurality of filter circuits receiving recovered clock information from a corresponding one of the plurality of clock recovery loops, and
c) a plurality of data paths for transferring data from one of the plurality of receivers to one of the plurality of transmitters.
36. The multiport device of claim 35, further comprising a plurality of input ports communicatively coupled to the plurality of receivers, and a plurality of output ports communicatively coupled to the plurality of transmitters.
37. The multiport device of claim 35, further comprising a plurality of data path switches.
38. The multiport device of claim 37, wherein each of said data path switches communicatively couple an input port to at least a subset of the plurality of receivers in the multiport device.
39. The multiport device of claim 37, wherein each of said data path switches communicatively couple an output port to at least a subset of the plurality of transmitters in the multiport device.
40. The multiport device of claim 37, wherein each of said data path switches communicatively couple at least a subset of the plurality of receivers to at least a subset of the plurality of transmitters in the multiport device.
41. The multiport device of claim 35, embodied on a single integrated circuit.
42. A network, comprising:
a) a plurality of the systems of claim 27; and
b) a plurality of storage or communications devices, each of said storage or communications devices being communicatively coupled to at least one of said systems.
43. The network of claim 42, wherein said plurality of said systems are embodied on a single integrated circuit.
44. The network of claim 42, wherein said plurality of said systems receives serial data from said plurality of storage or communications devices.
45. The network of claim 42, wherein a first one of said plurality of storage or communications devices operates at a first frequency, a second one of said plurality of storage or communications devices operates at a second frequency the same as or different from the first frequency, and said plurality of said systems operates at a third frequency the same as or different from either or both of the first andor second frequencies.
46. The network of claim 45, wherein each of said first and second devices and each of said plurality of said systems transmits serial data at a rate of at least 1 Gbsecond.
47. The network of claim 45, wherein each of said plurality of said systems transmits serial data at a rate F3 that is about the same as at least one of a rate F1 at which said first device transmits serial data and a rate F2 at which said second device transmits serial data.
48. The network of claim 42, further comprising a network controller or logic configured to select a first device of said plurality of storage or communications devices from which serial data is to be transmitted.
49. The network of claim 48, wherein said network controller or logic is further configured to select a second device of said plurality of storage or communications devices to which serial data is to be transmitted.
50. The network of claim 49, wherein said network controller or logic is further configured to select a data path through said plurality of said systems to receive said serial data from said first device and transmit said serial data to said second device.
51. An architecture for transferring data, comprising:
a) means for recovering a clock signal from said data;
b) means for filtering recovered clock signal information;
c) means for adjusting a transmitter clock in response to (i) said filtered recovered clock signal information, (ii) said recovered clock signal and (iii) a transmitter clock signal; and
d) means for transmitting said data to an external device in accordance with said transmitter clock signal.
52. The architecture of claim 51, further comprising a means for receiving said data.
53. The architecture of claim 51, wherein said means for recovering comprises a means for determining a phase difference between said recovered clock signal and either a reference clock signal or said data.
54. The architecture of claim 53, wherein said means for recovering further comprises a means for adjusting said recovered clock signal in response to said phase difference.
55. The architecture of claim 54, wherein said means for filtering filters an output of said means for adjusting said recovered clock signal.
56. The architecture of claim 51, wherein said means for filtering is configured to reduce jitter in said recovered clock signal information.
57. The architecture of claim 51, wherein said means for adjusting a transmitter clock further comprises a means for determining said difference between said recovered clock signal and said transmitter clock signal.
58. The architecture of claim 51, wherein said data comprises serial data.
59. A circuit, comprising:
a) means for detecting a difference between first and second periodic signals;
b) first means for filtering first periodic signal information; and
c) first means for combining an output of said means for detecting and an output of said first means for filtering, providing a control signal configured to reduce said difference between first and second periodic signals.
60. The circuit of claim 59, wherein said first and second periodic signals comprise a recovered clock signal and a transmitter clock signal.
61. The circuit of claim 59, wherein said means for detecting comprises (i) a first phase detector configured to receive said first and second periodic signals, and (ii) a second means for filtering an output of said phase detector.
62. The circuit of claim 61, wherein said second means for filtering comprises a multiplier configured to multiply said output of said phase detector by a first coefficient.
63. The circuit of claim 62, wherein said second means for filtering further comprises a first means for integrating an output of said multiplier.
64. The circuit of claim 59, wherein said first means for filtering comprises a means for tracking a frequency of said first periodic signal.
65. The circuit of claim 64, wherein said means for tracking comprises a second means for combining said first periodic signal information and said filtered periodic signal information.
66. The circuit of claim 65, wherein said means for tracking further comprises a second means for multiplying an output of said second means for combining by a second coefficient.
67. The circuit of claim 66, wherein said means for tracking further comprises a second means for integrating configured to provide said filtered clock information signal.
68. The circuit of claim 65, wherein said first means for filtering further comprises a third means for filtering an output of said second means for combining.
69. The circuit of claim 68, wherein said third means for filtering comprises (i) a third means for multiplying said output of said second means for combining by a third coefficient, and (ii) a third means for integrating an output of said third means for multiplying.
70. The circuit of claim 59, wherein said first means for combining comprises a means for adding said output of said means for detecting and said output of said first means for filtering.
71. A system, comprising:
a) the architecture of claim 51; and
b) a means for receiving said data, communicatively coupled to said means for recovering said clock signal, configured to receive said data from a network and transfer said data to said means for transmitting.
72. The system of claim 71, further comprising a means for providing a reference clock signal to said means for transmitting and said means for receiving.
73. The system of claim 71, wherein said means for receiving further comprises means for converting serial data to parallel data.
74. The system of claim 73, wherein said means for transmitting further comprises means for converting parallel data from the means for receiving to serial data.
75. The system of claim 71, further comprising (i) first means for communicating with one or more first external devices, communicatively coupled to said means for receiving and (ii) second port means for communicating with one or more second external devices, communicatively coupled to said means for transmitting.
76. A multiport device, comprising:
a) a plurality of means for receiving, each coupled to a unique one of a plurality of means for recovering a clock signal;
b) a plurality of means for transmitting serial data in accordance with a periodic signal, each of said plurality of means for transmitting being coupled to a unique one of a plurality of means for filtering recovered clock information from a corresponding one of the plurality of means for recovering, and said periodic signal being adjusted in response to filtered recovered clock information; and
c) a plurality of means for transferring data from one of the plurality of means for receiving to one of the plurality of means for transmitting.
77. The multiport device of claim 76, further comprising a plurality of means for communicating with one or more external devices, a first subset of said plurality of means for communicating coupled to the plurality of means for receiving, and a second subset of said plurality of means for communicating coupled to said plurality of means for transmitting.
78. The multiport device of claim 76, further comprising a plurality of means for selecting from among said plurality of means for transferring data.
79. The multiport device of claim 78, wherein each of said plurality of means for selecting communicatively couple at least one of said first subset of said plurality of means for communicating to at least a subset of the plurality of means for receiving in the multiport device.
80. The multiport device of claim 78, wherein each of said plurality of means for selecting communicatively couple at least one of said second subset of said plurality of means for communicating to at least a subset of the plurality of means for transmitting in the multiport device.
81. The multiport device of claim 78, wherein each of said plurality of means for selecting communicatively couple at least a subset of the plurality of means for receiving to at least a subset of the plurality of means for transmitting in the multiport device.
82. A network, comprising:
a) a plurality of the systems of claim 71; and
b) a plurality of means for data storing or data communications, each of said means for data storing or data communications being communicatively coupled to at least one of said systems.
83. The network of claim 82, wherein said each of said plurality of said systems receives serial data from said plurality of means for data storing or data communications.
84. The network of claim 82, wherein a first one of said plurality of means for data storing or data communications operates at a first frequency, a second one of said plurality of means for data storing or data communications operates at a second frequency the same as or different from the first frequency, and said plurality of said systems operates at a third frequency the same as or different from either or both of the first andor second frequencies.
85. The network of claim 84, wherein each of said first and second means for data storing or data communications and each of said plurality of said systems transmits serial data at a rate of at least 1 Gbsecond.
86. The network of claim 84, wherein each of said plurality of said systems transmits serial data at a rate F3 that is about the same as at least one of a rate F1 at which said first means for data storing or data communications transmits serial data and a rate F2 at which said second means for data storing or data communications transmits serial data.
87. The network of claim 82, further comprising a means for controlling a network.
88. The network of claim 87, wherein said means for controlling said network comprises means for selecting a first one of said means for data storing or data communications from which serial data is to be transmitted, a second one of said means for data storing or data communications to which serial data is to be transmitted, and one of said systems to receive said serial data from said first means for data storing or data communications and transmit said serial data to said second means for data storing or data communications.
89. A method of facilitating data transfer, comprising the steps of:
a) determining a phase difference between a first periodic signal and a second periodic signal, said first periodic signal being recovered from a data stream;
b) adjusting said second periodic signal in response to said phase difference and filtered information from said first periodic signal; and
c) transmitting said data stream in accordance with said adjusted second periodic signal.
90. The method of claim 89, further comprising receiving said data stream and recovering said first periodic signal therefrom.
91. The method of claim 89, further comprising transferring data from said data stream to a transmitter configured to perform said transmitting step along a data path that does not include a first-in-first-out (FIFO) memory or an elastic buffer.
92. The method of claim 89, further comprising filtering phase difference information corresponding to said phase difference.
93. The method of claim 89, wherein said adjusting step comprises combining said filtered phase difference information with said filtered information from said first periodic signal.
94. The method of claim 89, further comprising the step of filtering said information from said first periodic signal.
95. The method of claim 94, wherein said information from said first periodic signal comprises recovered clock adjustment information.
96. The method of claim 95, wherein said recovered clock adjustment information is configured to adjust a phase andor frequency of said first periodic signal.
97. The method of claim 96, wherein said recovered clock adjustment information is configured to adjust a phase of said first periodic signal.
98. The method of claim 89, wherein the step of filtering said information further comprises tracking a frequency of said first periodic signal.

1. A discharge lamp lighter comprising:
an inverter for converting direct voltage into high frequency voltage;
N (N: a positive integer) pieces of discharge lamps; and
N+1 pieces of transformers, wherein:
an nth. discharge lamp (n=1, 2, . . . , N), a primary winding of an n+1th. transformer and a secondary winding of the nth. transformer are connected in series between output terminals of the inverter, and
a primary winding of a first transformer is connected to a secondary winding of the n+1th. transformer in series.
2. The discharge lamp lighter of claim 1, wherein
the secondary winding of the nth. transformer and a primary winding of the n+1 th. transformer are connected to each other between the output terminal on a high-voltage side of the inverter and one end of the nth. discharge lamp, while another end of the nth. discharge lamp is connected to the outer terminal on a low-voltage side of the inverter.
3. The discharge lamp lighter of claim 1, wherein
an nth. ballast element is inserted in a series circuit consisting of the nth. discharge lamp, the primary winding of the n+1th. transformer and the secondary winding of the nth. transformer, in series.
4. The discharge lamp lighter of claim 3, wherein
the nth. ballast element, the secondary winding of the nth. transformer and the primary winding of the n+1th. transformer are connected to each other between the output terminal on a high-voltage side of the inverter and one end of the nth. discharge lamp, while another end of the nth. discharge lamp is connected to the outer terminal on a low-voltage side of the inverter.
5. A discharge lamp lighter having an inverter for converting direct voltage into high frequency voltage and a plurality of series circuits connected to outputs of the inverter in parallel, each of the series circuits consisting of either a primary winding of a transformer or a secondary winding of the transformer and a discharge lamp, wherein:
a capacitor is connected to at least either the primary winding or the secondary winding of the transformer, in parallel.
6. The discharge lamp lighter of claim 1, wherein
a capacitor is connected to at least either a primary winding or a secondary winding of each of the N+1 pieces of transformers, in parallel.
7. The discharge lamp lighter of claim 2, wherein
a capacitor is connected to at least either a primary winding or a secondary winding of each of the N+1 pieces of transformers, in parallel.
8. The discharge lamp lighter of claim 3, wherein
a capacitor is connected to at least either a primary winding or a secondary winding of each of the N+1 pieces of transformers, in parallel.
9. The discharge lamp lighter of claim 4, wherein
a capacitor is connected to at least either a primary winding or a secondary winding of each of the N+1 pieces of transformers, in parallel.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A method of treating an ethylene andor propylene containing stream, comprising:
providing an olefin stream containing ethylene, propylene, C4+ olefins and acetaldehyde;
separating the olefin stream into a first fraction and a second fraction, wherein the first fraction comprises at least a majority of the ethylene andor propylene present in the olefin stream, and the second fraction comprises at least a majority of the C4+ olefins and acetaldehyde present in the olefin stream; and
acid gas treating the first fraction.
2. The method of claim 1, wherein the provided olefin stream further comprises CO2, and the first fraction further contains at least a majority of the CO2 in the provided olefin stream.
3. The method of claim 2, wherein acid gas treating the first fraction comprises contacting the first fraction with caustic.
4. The method of claim 1, wherein the second fraction is comprised of at least 5 wt % C4+ olefin, based on the total weight of the second fraction.
5. The method of claim 1, wherein the olefin stream is separated by distillation.
6. The method of claim 2, wherein the distillation is extractive distillation using an extractant.
7. The method of claim 6, wherein the extractant is a polar composition having an average boiling point of at least 100\xb0 F. (38\xb0 C.) at 1 atm.
8. The method of claim 7, wherein the extractant is methanol.
9. The method of claim 1, wherein the first fraction comprises at least a majority of the ethylene present in the olefin stream, and the second fraction comprises at least a majority of the propylene present in the olefin stream.
10. The method of claim 1, wherein the first fraction comprises at least a majority of the ethylene and propylene present in the olefin stream.
11. The method of claim 1, wherein the second fraction comprises at least 1,000 wppm acetaldehyde.
12. The method of claim 1, wherein the provided olefin stream further contains propane, and the first fraction comprises at least a majority of the ethylene, propylene and propane present in the olefin stream.
13. The method of claim 1, wherein the provided olefin stream further contains propane, the first fraction comprises at least a majority of the ethylene and propylene present in the olefin stream, and the second fraction further comprises at least a majority of the propane present in the olefin stream.
14. A method of treating an ethylene andor propylene containing stream made from an oxygenate to olefin process comprising:
contacting oxygenate with a molecular sieve catalyst to form an olefin stream comprising ethylene, propylene, and acetaldehyde;
separating the olefin stream into a first fraction and a second fraction, wherein the first fraction comprises at least a majority of the ethylene andor propylene present in the olefin stream, and the second fraction comprises at least a majority of the acetaldehyde present in the olefin stream; and
acid gas treating the first fraction.
15. The method of claim 14, wherein the olefin stream further comprises CO2, and the first fraction further contains at least a majority of the CO2 in the provided olefin stream.
16. The method of claim 15, wherein acid gas treating the first fraction comprises contacting the first fraction with caustic.
17. The method of claim 14, wherein the olefin stream further comprises C4+ olefins, and the second fraction further comprises at least 5 wt % C4+ olefin, based on the total weight of the second fraction.
18. The method of claim 14, wherein the olefin stream is separated by distillation.
19. The method of claim 18, wherein the distillation is extractive distillation using an extractant.
20. The method of claim 19, wherein the extractant is a polar composition having an average boiling point of at least 100\xb0 F. (38\xb0 C.) at 1 atm.
21. The method of claim 20, wherein the extractant is methanol.
22. The method of claim 14, wherein the first fraction comprises at least a majority of the ethylene present in the olefin stream, and the second fraction comprises at least a majority of the propylene present in the olefin stream.
23. The method of claim 14, wherein the first fraction comprises at least a majority of the ethylene and propylene present in the olefin stream.
24. The method of claim 14, wherein the second fraction comprises at least 1,000 wppm acetaldehyde.
25. The method of claim 14, wherein the olefin stream further contains propane, and the first fraction comprises at least a majority of the ethylene, propylene and propane present in the olefin stream.
26. The method of claim 14, wherein the olefin stream further contains propane, the first fraction comprises at least a majority of the ethylene and propylene present in the olefin stream, and the second fraction comprises at least a majority of the propane present in the olefin stream.
27. A method of treating an ethylene containing stream, comprising:
providing an olefin stream containing ethylene, propylene, C4+ olefins and acetaldehyde;
separating the olefin stream into a first fraction and a second fraction, wherein the first fraction comprises at least a majority of the ethylene present in the olefin stream and the second fraction comprises at least a majority of the propylene, C4+ olefin and acetaldehyde present in the olefin stream; and
acid gas treating the first fraction.
28. The method of claim 27, wherein the provided olefin stream further comprises CO2, and the first fraction further contains at least a majority of the CO2 in the provided olefin stream.
29. The method of claim 28, wherein acid gas treating the first fraction comprises contacting the first fraction with caustic.
30. The method of claim 29, wherein the olefin stream is separated by distillation.
31. The method of claim 30, wherein the distillation is extractive distillation using an extractant.
32. The method of claim 31, wherein the extractant is a polar composition having an average boiling point of at least 100\xb0 F. (38\xb0 C.) at 1 atm.
33. The method of claim 32, wherein the extractant is methanol.
34. The method of claim 27, wherein ethylene in the first fraction is polymerized to form polyethylene.
35. A method of treating an ethylene and propylene containing stream comprising:
providing an olefin stream containing ethylene, propylene, C4+ olefins and acetaldehyde;
separating the olefin stream into an first fraction and a second fraction, wherein the first fraction comprises at least a majority of the ethylene and propylene present in the olefin stream, and the second fraction comprises at least a majority of the C4+ olefins and acetaldehyde present in the olefin stream; and
acid gas treating the first fraction.
36. The method of claim 35, wherein the provided olefin stream further comprises CO2, and the first fraction further contains at least a majority of the CO2 in the provided olefin stream.
37. The method of claim 36, wherein acid gas treating the first fraction comprises contacting the first fraction with caustic.
38. The method of claim 35, wherein the olefin stream is separated by distillation.
39. The method of claim 38, wherein the distillation is extractive distillation using an extractant.
40. The method of claim 39, wherein the extractant is a polar composition having an average boiling point of at least 100\xb0 F. (38\xb0 C.) at 1 atm.
41. The method of claim 40, wherein the extractant is methanol.
42. The method of claim 35, wherein the ethylene and propylene in the first fraction are separated before or after acid gas treatment, and polymerized to form polyethylene and polypropylene.
43. The method of claim 35, wherein the second fraction comprises at least 1,000 wppm acetaldehyde.
44. The method of claim 35, wherein the provided olefin stream further contains propane, and the first fraction further comprises at least a majority of propane present in the olefin stream.
45. The method of claim 35, wherein the provided olefin stream further contains propane, and the second fraction further comprises at least a majority of the propane present in the olefin stream.