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:
Apr. 21, 2020
Filed:
Jun. 29, 2016
Uop Llc, Des Plaines, IL (US);
July S. Maglente, Prairie Grove, IL (US);
Luigi Laricchia, Arlington Heights, IL (US);
Jonathan A. Tertel, Mount Prospect, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process and apparatus for sweetening a hydrocarbon stream. The apparatus includes two vessels. In a first extraction vessel, caustic removes mercaptans from the hydrocarbon stream. In a second oxidation vessel, the mercaptans in the rich caustic are converted in disulfides. The lean caustic and disulfides are passed back to the first extraction vessel in which the disulfides are separated into the sweetened hydrocarbon phase. The second vessel may receive a wash oil, such as the sweetened hydrocarbon phase, to remove disulfides from a vented gas stream.