Patent ID: 11883778
Assignee: CAMERON INTERNATIONAL CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  F  Y | IPC B  C  F

Claim 0:
1. An acid gas purification system, comprising:
a primary membrane system with a CO2- and H2S-enriched permeate stream effluent and a hydrocarbon stream effluent;
a first compressor arranged to receive the CO2- and H2S-enriched permeate stream and produce a compressed stream; and
a cryogenic separation system to receive the compressed stream,
the cryogenic separation system including a conditioner followed by a frozen CO2 fractionator, wherein the frozen CO2 fractionator comprises a stripping section, a rectification section, and a mid-section, wherein the mid-section comprises a side processor comprising an empty section configured to return a solid to the frozen CO2 fractionator, and wherein the side processor further comprises a condenser that produces a liquid level in the side processor, and
wherein the frozen CO2 fractionator produces a CO2 and H2S liquid stream and a hydrocarbon gas stream, and the hydrocarbon gas stream is compressed in a second compressor and blended with the hydrocarbon stream effluent of the primary membrane system.