Patent · US Expired

Process for the recovery of carbon monoxide from a purge gas containing at least carbon monoxide, nitrogen and hydrogen

US5683492A · kind A · utility

12Cited by

11References

13Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Peter S. Hesse · Bradenton, US
Siegfried Michel · Wolfratshausen, DE
Horst Weiss · Karlsruhe, DE

Key dates

Filing date	May 24, 1996
Grant date	Nov 4, 1997
Priority date	—
Expiry date	May 24, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/42
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the recovery of carbon monoxide from a purge gas from acetic acid synthetic containing at least carbon monoxide, nitrogen and hydrogen, wherein the purge gas (6) containing at least carbon monoxide, nitrogen and hydrogen is separated into a gas fraction (11) rich in carbon monoxide and a residual gas fraction (12, 13) rich in nitrogen and hydrogen by an adsorption process (G), preferably by a pressure change absorption process, and the gas fraction (11) rich in carbon monoxide is returned upstream of the acetic acid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.