PIPELINE SAMPLING SCRAPER TO SAMPLE HYDROCARBON DEPOSITS WHILE TRAVELING IN PIPELINES
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United States of America
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Mar 10, 2022
app pub date -
Sep 10, 2020
filing date -
Sep 10, 2020
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Methods and systems are provided for treating the tail gas stream of a sulfur recovery plant. The methods including generating a tail gas stream from a sulfur recovery plant, treating the tail gas stream with a hydrogen sulfide absorption unit and a hydrogen selective membrane unit, generating a stream low in hydrogen sulfide and a stream rich in hydrogen. The hydrogen sulfide rich stream is recycled to the sulfur recovery unit. The hydrogen selective membrane unit includes a glassy polymer membrane selective for hydrogen over hydrogen sulfide and carbon dioxide.
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