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. 10, 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 and carbon dioxide from a sour gas stream, the process comprising the steps of: providing a sour gas stream to a membrane separation unit, the sour gas stream comprising hydrogen sulfide and carbon dioxide; separating the hydrogen sulfide from the carbon dioxide in the membrane separation unit to obtain a retentate stream and a first permeate stream, wherein the retentate stream comprises hydrogen sulfide, wherein the permeate stream comprises carbon dioxide; introducing the retentate stream to a sulfur recovery unit; processing the retentate stream in the sulfur recovery unit to produce a sulfur stream and a tail gas stream, wherein the sulfur stream comprises liquid sulfur; introducing the permeate stream to an amine absorption unit; and processing the permeate stream in the amine absorption unit to produce an enriched carbon dioxide stream.