Sour gas treatment process

Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...

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95 51, 95 52, B01D 5322, B01D 7156

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active

054074673

ABSTRACT:
Improved membranes and improved membrane 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.

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