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

Claim 7:
8. The process of claim 1, further comprising, prior to directing the first vapor effluent stream into the second fractionator:
receiving an inlet fluid stream comprising natural gas upstream of the second fractionator,
directing at least a portion of the inlet fluid stream through a heat exchanger;
directing the second portion of the first vapor effluent stream through the heat exchanger, and then directing the second portion into the second fractionator;
combining the first portion of the first vapor effluent stream with at least a portion of the inlet fluid stream comprising the natural gas exiting the heat exchanger to form a first combined stream, and directing the first combined stream into the second fractionator, wherein the first combined stream and the second portion of the first vapor effluent stream are fractionated within the second fractionator to form the first liquid stream and the second vapor effluent stream; and
directing the second vapor effluent stream through the heat exchanger, wherein the second portion of the first vapor effluent stream, the second vapor effluent stream, and the said at least a portion of the inlet fluid stream are passed in thermal communication within the heat exchanger.