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:
Aug. 23, 2022
Filed:
May. 18, 2020
Saudi Arabian Oil Company, Dhahran, SA;
Membrane Technology and Research, Inc., Newark, CA (US);
Milind M. Vaidya, Dhahran, SA;
Sebastien A. Duval, Dhahran, SA;
Feras Hamad, Dhahran, SA;
Richard Baker, Newark, CA (US);
Tim Merkel, Newark, CA (US);
Kaaeid Lokhandwala, Newark, CA (US);
Ahmad A. Bahamdan, Dammam, SA;
Faisal D. Al-Otaibi, Dhahran, SA;
MEMBRANE TECHNOLOGY AND RESEARCH, INC., Newark, CA (US);
Abstract
A process for recovering sulfur from a sour gas is provided. The process includes the steps of: providing the sour gas to a membrane separation unit having a carbon dioxide-selective membrane that comprises a perfluoropolymer, wherein the sour gas comprises carbon dioxide and at least 1 mol % hydrogen sulfide; separating the sour gas using the carbon dioxide-selective membrane in the membrane separation stage to obtain hydrogen sulfide-enriched gas and hydrogen sulfide-stripped gas, wherein the hydrogen sulfide-enriched gas has a hydrogen sulfide concentration of at least 20 mol %, and wherein the hydrogen sulfide-stripped gas comprises carbon dioxide; and processing the hydrogen sulfide-enriched gas in a sulfur recovery unit to obtain sulfur.