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. 10, 2010
Filed:
Aug. 01, 2007
Sabah A. Kurukchi, Houston, TX (US);
Joseph M. Gondolfe, Cypress, TX (US);
Ming Wang, Sugar Land, TX (US);
Sabah A. Kurukchi, Houston, TX (US);
Joseph M. Gondolfe, Cypress, TX (US);
Ming Wang, Sugar Land, TX (US);
Stone & Webster Process Technology, Inc., Houston, TX (US);
Abstract
The present invention provides a process for treating a hydrocarbon feed gas stream containing acid gases (CO, HS and mercaptans) by contacting the feed gas stream in a multi-section caustic tower, the bottom sections employing a recirculating caustic solution to remove the COand HS down to low single digits parts per million concentration and the upper sections employing a stronger caustic solution on a once-through basis to produce a mercaptans depleted gas stream.