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:
May. 06, 2014
Filed:
Dec. 12, 2008
René Alexander Rozendal, Hoorn, NL;
Sjoerd Hubertus Josef Vellinga, Tjalleberd, NL;
Erik Van Zessen, Heerenveen, NL;
René Alexander Rozendal, Hoorn, NL;
Sjoerd Hubertus Josef Vellinga, Tjalleberd, NL;
Erik van Zessen, Heerenveen, NL;
Paques I.P. B.V., Balk, NL;
Abstract
Alkaline solutions resulting from extracting sulfide from hydrocarbon fluids can be treated in a combination of one or more electrodialysis cells and a bioreactor. The electrodialysis cell () includes an anode (), a cathode (), an electric power supply () and a first () and a second () compartment separated from each other by an anion exchange membrane (). The alkaline solution is fed into the first compartment at the cathode side and the diluate (sulfide-depleted stream) leaving the first compartment has a lowered sulfide content and can be reused as the alkaline extractant solution. The concentrate (sulfide-enriched stream) leaving the second compartment is treated in the bioreactor () for removing sulfide and is then returned.