Patent ID: 11884621
Assignee: ENERFLEX US HOLDINGS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  F | IPC B  C  F

Claim 0:
1. A process for separating a natural gas stream, the process comprising:
receiving an input stream into a first fractionator, wherein the input stream comprises natural gas, and operating the first fractionator to fractionate the input stream, thereby forming a product stream and a first vapor effluent stream;
directing at least a portion of the first vapor effluent stream into a second fractionator;
operating the second fractionator to form a first liquid stream and a second vapor effluent stream; and
directing at least a portion of the first liquid stream into the first fractionator, wherein said at least a portion of the first liquid stream is fractionated as part of the input stream, and said product stream is formed; and
prior to directing the first vapor effluent stream portion into the second fractionator, separating the first vapor effluent stream into a first portion and a second portion, whereby the first portion or the second portion is the first vapor effluent stream portion directed into the second fractionator.