Absorptive separation of HCl and H.sub.2 S from catalytic reform

Details Absorptive separation of HCl and H.sub.2 S from catalytic reform Absorptive separation of HCl and H.sub.2 S from catalytic reform

1981-08-03

1983-02-22

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 73, 55 74, 55 75, 423230, B01D 5304

Patent

active

043746543

ABSTRACT:
A two stage low temperature adsorptive separation process for removing HCl and H.sub.2 S from a catalytic reforming offgas to make the offgas useful as a feed to a steam reforming process. In the first stage the offgas is passed through a molecular sieve bed that adsorbs HCl selectively. In the second bed the HCl depleted offgas is passed through a zinc oxide bed to remove the H.sub.2 S. The H.sub.2 S and HCl content of the offgas are reduced to levels that do not significantly poison the catalysts used in the steam reforming process.

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patent: 3953587 (1976-04-01), Lee et al.
patent: 4263020 (1981-04-01), Eberly, Jr.

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