The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2020
Filed:
Jun. 16, 2015
Applicant:
Bp Chemicals Limited, Middlesex, GB;
Inventors:
Timothy Crispin Bristow, East Yorkshire, GB;
Paul David Williams, Dyce, GB;
Assignee:
BP Chemicals Limited, Middlesex, GB;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 53/18 (2006.01); C07C 51/12 (2006.01); C07C 51/48 (2006.01); C07C 51/42 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1493 (2013.01); B01D 53/1406 (2013.01); B01D 53/1487 (2013.01); B01D 53/18 (2013.01); C07C 51/12 (2013.01); C07C 51/42 (2013.01); B01D 2252/205 (2013.01); B01D 2252/2021 (2013.01);
Abstract
A method for scrubbing off-gas generated in production units for the manufacture of acetic acid and an apparatus therefor. The method comprises supplying off-gas and acetic acid solvent at a tick-over flow rate to an acetic acid scrubbing unit, withdrawing off-gas from the scrubbing unit, supplying withdrawn off-gas to a methanol scrubbing unit, scrubbing the off-gas therein with methanol solvent and withdrawing scrubbed off-gas from the methanol scrubbing unit.