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:
Feb. 23, 2016
Filed:
Dec. 03, 2013
Benjamin S. Umansky, Fairfax, VA (US);
Charles R. Bolz, West Chester, PA (US);
Anjaneya S. Kovvali, Fairfax, VA (US);
Carlos N. Lopez, Amissville, VA (US);
Rathna P. Davuluri, Fairfax, VA (US);
Benjamin S. Umansky, Fairfax, VA (US);
Charles R. Bolz, West Chester, PA (US);
Anjaneya S. Kovvali, Fairfax, VA (US);
Carlos N. Lopez, Amissville, VA (US);
Rathna P. Davuluri, Fairfax, VA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Processes are provided herein for producing naphtha boiling range products with a desired sulfur content by reducing the mercaptan content of the naphtha boiling range products after the products exit a hydroprocessing stage. Due to mercaptan reversion, naphtha boiling range products that contain even small amounts of olefins can have a higher than expected sulfur content after hydroprocessing. In order to reduce or mitigate the effects of mercaptan reversion, microchannel reactors (or microreactors) can be placed in a processing system downstream of a reactor that produces a low sulfur naphtha product. The microreactors can include a coating of metals that have activity for hydrodesulfurization. By passing at least a portion of the naphtha product through the downstream microreactors, the mercaptans formed by reversion reactions can be reduced or eliminated, resulting in a naphtha product with possessing a very low sulfur content.