Patent ID: 11859025
Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 18:
19. A reaction system comprising:
(a) an activation vessel configured to form a first mixture, wherein the activation vessel is further configured for an average residence time of the first mixture in the activation vessel;
(b) one or more activation vessel inlets configured to introduce i) ethylene and a catalyst system mixture, or ii) ethylene and components of a catalyst system mixture, into the activation vessel;
(c) an activation vessel outlet configured to withdraw the first mixture from the activation vessel;
(d) a reaction zone configured to contact ethylene, the first mixture, a second organic reaction medium, and optionally hydrogen to form an oligomer product;
(e) one or more reaction zone inlets configured to introduce ethylene, the second organic reaction medium, and the first mixture from the activation vessel outlet into the reaction zone; and
(f) a reaction zone outlet configured to withdraw a reaction zone effluent stream containing the oligomer product from the reaction zone;
(g) a controller configured to control the average residence time of the first mixture in the activation vessel, and/or a temperature in the activation vessel, and/or a pressure in the activation vessel, and/or an ethylene conversion in the activation vessel, and/or an amount of ethylene introduced into the activation vessel;
wherein the average residence time of the first mixture in the activation vessel is in a range from 30 sec to 45 min; and
wherein the activation vessel is a stirred tank.