Patent · US Active

System and method for processing reactor polymerization effluent

US8492492B2 · kind B2 · utility

4Cited by

24References

18Claims

0Family size

Assignee

Chevron Phillips Chemical Company LP · US

Inventors

Andrew Mills · Roseau, US
Ralph W. Romig · Kingwood, US
Ji Xian X. Loh · Houston, US

Key dates

Filing date	Dec 11, 2012
Grant date	Jul 23, 2013
Priority date	—
Expiry date	Dec 11, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F210/16
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of treating a polymerization reactor effluent stream comprising recovering the reactor effluent stream from the polymerization reactor, flashing the reactor effluent stream to form a flash gas stream, separating the flash gas stream into a first top stream, a first bottom stream, and a side stream, wherein the side stream substantially comprises hexane, separating the first top stream into a second top stream and a second bottom stream, wherein the second bottom stream substantially comprises isobutane, and separating the second top stream into a third top stream and a third bottom stream; wherein the third top stream substantially comprises ethylene, and wherein the third bottom stream is substantially free of olefins.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.