Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon monoxide component
Patent
1994-10-04
1996-04-09
Lewis, Michael
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon monoxide component
4232451, 4232452, 4232453, 562590, 562600, C01B 3120, C10K 110
Patent
active
055059201
ABSTRACT:
The present invention relates to a process for the treatment of waste gas discharged from a cyclohexane oxidation reactor used in the manufacture of adipic acid, said waste gas containing mainly nitrogen, oxygen, carbon monoxide, carbon dioxide, acetic acid, and up to 10% by weight cyclohexane, as well as other gases or vapors, by (a) scrubbing the waste gas from the cyclohexane oxidation reactor with acetic acid in a first absorption step to reduce the amount of cyclohexane to a residual content of less than about 1% by weight, (b) scrubbing the waste gas from the first absorption step with water in a second absorption step to reduce the amount of acetic acid to a residual content of less than about 1% by weight, and (c) subjecting the scrubbed waste gas from the second absorption step to an oxidation step to oxidize carbon monoxide and other oxidizable components of the waste gas to carbon dioxide and water.
REFERENCES:
patent: 4032569 (1977-06-01), Onopchenko et al.
patent: 4102983 (1978-07-01), Yamase et al.
patent: 4263453 (1981-04-01), Schulz et al.
patent: 5321157 (1994-06-01), Kollar
Borger Gotz-Gerald
Kollar John
Stenger Matthias
Bayer Aktiengesellschaft
Gil Joseph C.
Harding Amy Marie
Henderson Richard E. L.
Lewis Michael
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