Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Membrane Technology and Research Inc
Original Assignee
Kaaeid A. Lokhandwala
Richard W. Baker
Membrane Technology And Research, Inc.
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Filing date
Publication date
Priority claimed from US08/143,285external-prioritypatent/US5407466A/en
Application filed by Kaaeid A. Lokhandwala, Richard W. Baker, Membrane Technology And Research, Inc.filedCriticalKaaeid A. Lokhandwala
Publication of CA2174341A1publicationCriticalpatent/CA2174341A1/en
Application grantedgrantedCritical
Publication of CA2174341CpublicationCriticalpatent/CA2174341C/en
Improved processes for treating gas streams containing hydrogen sulfide, carbon dioxide, water vapor, and methane, particularly natural gas streams. The processes rely on the availability of two membrane types, one of which has a hydrogen sulfide/methane selectivity of at least about 40 when measured with multicomponent gas mixtures at high pressure. Based on the different permeation properties of the two membrane types, optimized separation processes can be designed. The membrane separation is combined with non-membrane treatment of the residue and/or permeate streams.
CA002174341A1993-10-251994-10-21Membrane and non-membrane sour gas treatment process
Expired - LifetimeCA2174341C
(en)