Paqell B.v.

Jan Henk Van Dijk

Albert Joseph Janssen

Gijsbert Jan Van Heeringen

Jan Klok

Johannes Bernardus Maria Klok

Albert Joseph Hendrik Janssen

Gijs Van Heeringen

Jahannes Bernardus Klok

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).

Process for treating a hydrogen sulphide and mercaptans comprising gas

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Amsterdam, Netherlands

Jan Henk Van Dijk