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. 28, 2020
Filed:
Feb. 18, 2016
Paqell B.v., Amsterdam, NL;
Johannes Bernardus Maria Klok, Amsterdam, NL;
Gijsbert Jan van Heeringen, Amsterdam, NL;
Jan Henk van Dijk, Amsterdam, NL;
Albert Joseph Hendrik Janssen, Geldermalsen, NL;
PAQELL B.V., Amsterdam, NL;
Abstract
A process to treat a gas comprising hydrogen sulphide and mercaptans is described. The following steps are part of this process: (a) contacting the hydrogen sulphide and mercaptans comprising gas () with an aqueous solution () comprising sulphide-oxidising bacteria thereby obtaining a loaded aqueous solution () and a gas () having a lower content of hydrogen sulphide and mercaptans, (b) contacting the loaded aqueous solution with mercaptan reducing microorganisms immobilized on a carrier under anaerobic conditions, (c) separating the aqueous solution obtained in step (b) from the mercaptan reducing microorganisms to obtain a first liquid effluent (), and (d) contacting the first liquid effluent () with an oxidant () to regenerate the sulphide-oxidising bacteria to obtain a second liquid effluent () comprising regenerated sulphide-oxidising bacteria. The sulphide-oxidising bacteria as present in step (a) are comprised of regenerated sulphide-oxidising bacteria obtained in step (d).