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.

Date of Patent:
Feb. 07, 2023

Filed:

Feb. 03, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Georgios Lithoxoos, Dhahran, SA;

Rashid M. Othman, Dhahran, SA;

Ismail A. Alami, Dhahran, SA;

Sebastien A. Duval, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 17/16 (2006.01); B01J 19/24 (2006.01); B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
C01B 17/167 (2013.01); B01D 53/0423 (2013.01); B01D 53/0438 (2013.01); B01J 19/24 (2013.01); C01B 17/168 (2013.01); B01D 2253/108 (2013.01); B01D 2253/116 (2013.01); B01D 2257/304 (2013.01); B01D 2257/80 (2013.01); B01D 2259/4009 (2013.01); B01D 2259/4062 (2013.01); B01D 2259/414 (2013.01);
Abstract

A system and method for sulfur recovery, including hydrogenating Claus tail gas, quenching the hydrogenated gas, adsorbing water and hydrogen sulfide from the quenched gas, and regenerating adsorbent with carbon dioxide and/or nitrogen and heating the adsorbent in a regeneration temperature ramp to desorb primarily hydrogen sulfide in a first part of the temperature ramp.


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