1. A process for converting a biomass feedstock to a saccharide, the method comprising contacting the biomass feedstock with an enzyme composition, wherein the enzyme composition is produced by culturing a fungal strain comprising Trichoderma SG2 or its teleomorph thereof, Trichoderma SG4 or its teleomorph thereof, or any combination thereof, in the presence of a lignocellulosic medium.
2. The process of claim 1, wherein when the fungal strain is Trichoderma SG2 and the enzyme composition comprises cellulase, xylanase, beta-glucosidase, beta-xylosidase, or any combination thereof.
3. The process of claim 1, wherein the enzyme composition is separated from the lignocellulosic medium by filtration or centrifugation prior to contact with the biomass feedstock.
4. The process of claim 1, wherein the enzyme composition further comprises a second enzyme composition for hydrolyzing the biomass feedstock, wherein the second enzyme composition is not produced by Trichoderma SG2 or its teleomorph thereof, Trichoderma SG4 or its teleomorph thereof.
5. The process of claim 4, wherein the second enzyme composition comprises cellulase, xylanase, beta-glucosidase, hemicellulase, or any combination thereof.
6. The process of claim 4, wherein the second enzyme composition is 10% to 50% by volume of the enzyme composition.
7. The process of claim 4, wherein the second enzyme composition is 25% to 50% by volume of the enzyme composition.
8. The process of claim 1, wherein the biomass feedstock comprises an agricultural feedstock, a bioenergy grass, a forestry residue, a logging residue, a sawmill residue, animal manure, a carbohydrate waste, a recycled material, or a combination thereof.
9. The process of claim 8, wherein the biomass feedstock comprises a corn cob, corn stover, wheat straw, a peanut hull, soy hull, switchgrass, gammagrass, sawdust, paper, a chemically liquefied polymer, a high sugar waste, or any combination thereof.
10. The process of claim 1, wherein the method is conducted in a bioreactor.
11. The process of claim 1, wherein the method is conducted in a farm-deployable bioreactor.
12. A process for producing ethanol from biomass feedstock, the method comprising
(a) contacting the biomass feedstock with an enzyme composition to convert the biomass feedstock to a saccharide, wherein the enzyme composition is produced by culturing a fungal strain comprising Trichoderma SG2 or its teleomorph thereof, Trichoderma SG4 or its teleomorph thereof, or any combination thereof in the presence of a lignocellulosic medium; and
(b) fermenting the saccharide to produce ethanol.
13. The process of claim 12, wherein the saccharide is fermented in the presence of yeast.
14. The process of claim 13, wherein the yeast comprises a Saccharomyces yeast, a Pichia yeast, or a combination thereof.
15. The process of claim 12, wherein after step (b), the ethanol is isolated by distillation.
16. The process of claim 15, wherein the ethanol is distilled using an ice-cooled condenser system.
17. The process of claim 12, wherein the process is a batch process or continuous process.
18. The process of claim 12, wherein prior to step (a), the biomass feedstock is treated with a dilute acid or dilute base.
19. The process of claim 12, wherein the process is conducted in the same bioreactor.
20. A spent biomaterial produced by the method comprising
(a) culturing a fungal strain comprising Trichoderma SG2 or its teleomorph thereof, Trichoderma SG4 or its teleomorph thereof, or any combination thereof in the presence of a cellulosic medium to produce an enzyme composition and a spent biomaterial; and
(b) separating the spent biomaterial from the enzyme composition.
21. A bioreactor comprising
(a) an enzymatic chamber for culturing a fungal strain in the presence of a lignocellulosic medium to produce an enzyme composition;
(b) a filter in communication with the enzymatic chamber;
(c) a saccharification chamber for converting biomass feedstock to saccharides, wherein the saccharification chamber is in communication with (i) a biomass feedstock and (ii) the filter;
(d) a fermentation chamber for converting saccharides to ethanol, wherein the fermentation chamber is in communication with the saccharification chamber;
(e) a distillation system in communication with the fermentation chamber for isolating ethanol; and
(f) a collection tank in communication with the distillation system for holding ethanol.
22. The bioreactor of claim 21, wherein the saccharification chamber is in further communication with a second enzyme composition.
23. The bioreactor of claim 21, wherein a holding tank for holding the enzyme composition is in communication with and positioned between the filter and the saccharification chamber.
24. The bioreactor of claim 21, wherein the bioreactor is portable.
25. The bioreactor of claim 24, wherein the bioreactor is farm-deployable.
26. An enzyme composition produced by culturing a fungal strain comprising Trichoderma SG2 or its teleomorph thereof, Trichoderma SG4 or its teleomorph thereof, or any combination thereof in the presence of a lignocellulosic medium.
27. The composition of claim 26, wherein the cellulosic medium comprises switchgrass, powdered paper, or a combination thereof.
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 electrode for a high visibility plasma arc cutting torch comprising:
an elongated electrode body having a first end and a second end, the body defining a bore in the first end for receiving an insert, the electrode body including:
(i) a first body portion extending from the first end and having a first length and a first width; and
(ii) a second body portion extending to the second end and comprising a second length and a second width,
wherein a ratio of the second width to the first width is at least about 2, and a ratio of the first length to the first width is at least about 3.
2. The electrode of claim 1, wherein the ratio of the second width to the first width is between about 2 and 2.5.
3. The electrode of claim 1, wherein the ratio of the first length to the first width is between 3.5 and 4.5.
4. The electrode of claim 1, wherein the ratio of the first length to the first width is at least about 4.
5. The electrode of claim 1, the body having a distance from the first end to the second end that defines an overall length, such that a ratio of the first length to the overall length is at least about 0.6.
6. The electrode of claim 1, the second body portion including at least one rib that at least partially defines a cooling gas passage adjacent an exterior surface of the second body portion.
7. The electrode of claim 6, wherein the second body portion further defines a shoulder having an imperforate face that blocks passage of a gas flow through the second body portion.
8. The electrode of claim 7, wherein at least one of the cooling gas passage or the imperforate face is configured to provide a gas pressure drop sufficient to enable a motion of the electrode with respect to an anode.
9. The electrode of claim 1, wherein the first and second body portions are formed integrally of a solid material.
10. The electrode of claim 1, wherein at least one of the first width and the second width is a diameter.
11. A method of cutting a workpiece comprising the steps of:
providing a plasma arc torch comprising the electrode of claim 1; and
supplying an electrical current to the electrode to energize the torch.
12. A plasma arc torch comprising the electrode of claim 1.
13. An electrode for a high visibility plasma arc cutting torch comprising:
an elongated electrode body having a first end and a second end, a distance from the first end to the second end defining an overall length, the body defining a bore in the first end for receiving an insert, the electrode body including:
(i) a first body portion extending from the first end and having a first length and a first width; and
(ii) a second body portion extending to the second end and comprising a second length and a second width,
wherein a ratio of the second width to the first width is at least about 2, and a ratio of the first length to the overall length is at least about 0.6.
14. The electrode of claim 13, wherein the ratio of the second width to the first width is between 2 to 2.5.
15. The electrode of claim 13, wherein the ratio of the first length to the overall length is between 0.6 to 0.7.
16. The electrode of claim 13, wherein a ratio of the first length to the first width is at least about 3.
17. The electrode of claim 16, wherein the ratio of the first length to the first width is at least about 4.
18. The electrode of claim 13, the second body portion including at least one rib that at least partially defines a cooling gas passage adjacent an exterior surface of the second body portion.
19. The electrode of claim 18, wherein the second body portion further defines a shoulder having an imperforate face that blocks passage of a gas flow through the second body portion.
20. The electrode of claim 19, wherein at least one of the cooling gas passage or the imperforate face is configured to provide a gas pressure drop sufficient to enable a motion of the electrode with respect to an anode.
21. The electrode of claim 13, wherein the first and second body portions are formed integrally of a solid material.
22. The electrode of claim 13, wherein at least one of the first width and the second width is a diameter.
23. A method of cutting a workpiece comprising the steps of:
providing a plasma arc torch comprising the electrode of claim 13; and
supplying an electrical current to the electrode to energize the torch.
24. A plasma arc torch comprising the electrode of claim 13.