1. A process for separating catalyst particles from a gaseous product stream comprising:
contacting a hydrocarbon feed with catalyst particles in an elongated riser to produce a gaseous product;
inducing the catalyst particles and gaseous products to swirl in an angular direction upon exiting said riser and entering a disengaging chamber to disengage catalyst particles from said gaseous product;
stripping descending catalyst particles over elongated strips in a stripping section in said disengaging chamber;
separating catalyst particles entrained with ascending product gases from said product gases;
admitting separated catalyst particles into said disengaging vessel; and
directing said descending catalyst particles over a baffle away from the outer wall of said disengaging vessel.
2. The process of claim 1 wherein said catalyst particles admitted through said passages are directed over said baffle.
3. The process of claim 1 wherein said catalyst particles are directed over said baffle at an angle to said wall.
4. The process of claim 1 wherein said catalyst particles are separated from said product gases in a reactor vessel and are admitted into said disengaging vessel through passages.
5. The process of claim 1 wherein said descending catalyst particles are stripped by an ascending gas.
6. The process of claim 1, further including directing descending catalyst particles over a baffle away from a wall of said riser extending through said disengaging vessel.
7. The process of claim 1 wherein the descending catalyst particles are directed toward the center third of the stripper section.
8. A process for separating catalyst particles from a gaseous product stream comprising:
contacting a hydrocarbon feed with catalyst particles in an elongated riser to produce a gaseous product;
inducing the catalyst particles and gaseous products to swirl in an angular direction upon exiting said riser and entering a disengaging chamber to disengage catalyst particles from said gaseous product;
stripping descending catalyst particles over elongated strips in a stripping section in said disengaging chamber;
separating catalyst particles entrained with ascending product gases in a reactor vessel;
admitting separated catalyst particles from said reactor vessel through passages into said disengaging vessel;
directing said catalyst particles admitted through said passages over a baffle away from the outer wall of said disengaging vessel; and
directing descending catalyst particles over a baffle away from a wall of said riser extending through said disengaging vessel.
9. The process of claim 8 wherein said catalyst particles are directed over said baffles at an angle to said wall.
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 device comprising:
a tube having a first portion and a second portion, the second portion having an inside diameter that is smaller than that of the first portion; and
a plunger insertable into the tube from a first portion side of the tube, the plunger having:
a tubular portion configured to fit an inner surface of the first portion; and
a rod-like portion extending from the tubular portion, the rod-like portion being configured to fit an inner surface of the second portion, wherein
either a first state or a second state is formed when the tubular portion fits the inner surface of the first portion,
in the first state, the inner surface of the second portion and the rod-like portion are spaced apart from each other so that the tube forms a communication path fluidly interconnecting an inside of the second portion with an inside of the tubular portion, and
in the second state, the inner surface of the second portion and the rod-like portion fit together so as to block the fluid communication path.
2. The device according to claim 1, wherein
in the inside of the second portion, a first plug including an oil, a second plug including an eluate not miscible with an oil, and a third plug including an oil are arranged in this order from the first portion side.
3. The device according to claim 1, further comprising a container connectable to the tubular portion, wherein
when the container is connected to the tubular portion, the inside of the tubular portion and the inside of the container are communicated with each other.
4. The device according to claim 1, comprising a plurality of the tubes and a plurality of the plungers, wherein
the plurality of plungers and the plurality of tubes form, in conjunction with each other, the first state and the second state.
5. The device according to claim 4, further comprising a manifold connectable to the tubular portions of the plurality of plungers, wherein
when the manifold is connected to the tubular portions, the insides of the tubular portions and the inside of the manifold are communicated with each other, and
the manifold has a plurality of individual passages each connected to the tubular portions, and a common passage connected to the individual passages.
6. The device according to claim 5, wherein
the volumes of the individual passages are substantially equal to each other.
7. The device according to claim 5, further comprising a container connectable to the common passage of the manifold, wherein
when the container is connected to the manifold, the inside of the manifold and the inside of the container are communicated with each other.
8. The device according to claim 1, wherein
the tubular portion has an inner cavity extending therethrough in the longitudinal direction.
9. The device according to claim 1, wherein
the rod-like portion is supported by a support so as to form an inner cavity in the tubular portion extending in the longitudinal direction.
10. The device according to claim 1, wherein
the tubular portion has a first convex portion, the first convex portion being configured to come into contact with the inner surface of the first portion.
11. The device according to claim 1, wherein
the rod-like portion has a second convex portion, the second convex portion being configured to come into contact with the inner surface of the second portion.