Carbon Dioxide and Hydrogen Sulfide Recovery System using a Combination of Membranes and Low Temperature Cryogenic Separation Processes
AssigneeCameron Solutions, Inc.
InventorAnkur D. Jariwala
Life of this patent
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Abstract
An acid gas purification system is described herein that includes a primary membrane system with a CO2- and H2S-enriched permeate stream effluent and a hydrocarbon stream effluent; a first compression stage 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 cooler followed by a fractionator, wherein the fractionator produces a CO2- and H2S liquid stream and a hydrocarbon gas stream.
Claims20
An acid gas purification system, comprising:
- a primary membrane system with a CO2- and H2 S-enriched permeate stream effluent and a hydrocarbon stream effluent;
- a first compression stage 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 fractionator, wherein the fractionator produces a CO2- and H2S liquid stream and a hydrocarbon gas stream.
An acid gas purification system, comprising:
- a membrane separation unit that produces a permeate stream enriched in CO2 and/or H2S and a retentate stream from a feed stream;
- a conditioner to reduce a temperature of the permeate stream;
- and
- a cryogenic fractionator to separate acid gases from the cooled permeate stream.
An acid gas purification system, comprising:
- a non-distillation separation system with an acid gas effluent and a separation gas effluent, wherein the non-distillation separation system is a single step separation and the acid gas effluent is at least 90 mol % CO2 and/or H2S;
- and
- a cryogenic fractionation system including a conditioner and a fractionator.
Dependencies are inferred from the claim text.