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:
Jan. 31, 2017

Filed:

Nov. 07, 2014
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventor:

John P. O'Connell, Dhahran, SA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 12/00 (2006.01); C01B 17/04 (2006.01); B01J 19/24 (2006.01); B01D 53/52 (2006.01);
U.S. Cl.
CPC ...
C01B 17/0456 (2013.01); B01D 53/52 (2013.01); B01J 19/245 (2013.01); C01B 17/04 (2013.01); B01D 2257/304 (2013.01); B01J 2219/24 (2013.01); Y02P 20/129 (2015.11);
Abstract

A sulfur recovery unit for processing an acid gas feed to recover elemental sulfur, the sulfur recovery unit comprising a reaction furnace configured to burn the acid gas feed, an oxygen source, and a fuel gas to create a furnace outlet stream, the acid gas feed comprises hydrogen sulfide which is converted to elemental sulfur, a waste heat boiler configured to capture heat from the furnace outlet stream to create a cooled stream, a condenser configured to condense the cooled stream to produce a waste gas stream and a condensed stream comprising elemental sulfur, a thermal oxidizer configured to burn the waste gas stream to create a sulfur dioxide rich stream, and a sulfur dioxide scrubbing unit configured to remove the amount of sulfur dioxide from the sulfur dioxide rich stream to create an effluent stream and a recycle stream recycled to the reaction furnace.


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