Process for independent control of methane and rare gas contents

Details Process for independent control of methane and rare gas contents Process for independent control of methane and rare gas contents

1990-03-30

1991-12-03

Langel, Wayne A.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

C01C 104

Patent

active

050698915

ABSTRACT:
Disclosed herein is a process for the separate control of the methane and rare gas contents of an ammonia-hydrogen recovery-rare gas plant complex. By the controlled withdrawal of a purge gas from the synthesis gas circulation, splitting of the purge gas into two partial streams and recycling of a partial stream to the synthesis gas generation section, the increase in inert gas to be taken out of the synthesis gas circulation as a result of the modernization of the ammonia plant can be prevented negative effect on the downstream hydrogen recovery/rare; thus energetic disadvantages or costly expansions or modifications of the ammonia-hydrogen recovery-rare gas plant complex are voided.

REFERENCES:
patent: 3615200 (1971-10-01), Konoki
patent: 4056603 (1977-11-01), Bresler
patent: 4180552 (1979-12-01), Graham et al.
patent: 4180858 (1979-12-01), Gaines et al.
patent: 4298588 (1981-11-01), Pinto
patent: 4910007 (1990-03-01), Pinto et al.
patent: 4981669 (1991-01-01), Pinto

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