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:
Jun. 06, 2017
Filed:
Feb. 20, 2014
Bing Du, Fairfax, VA (US);
Timothy M. Healy, Centreville, VA (US);
Fritz A. Bernatz, League City, TX (US);
Yi En Huang, North Potomac, MD (US);
Zachary R. Martin, Fairfax, VA (US);
Brenda A. Raich, Annandale, NJ (US);
Bing Du, Fairfax, VA (US);
Timothy M. Healy, Centreville, VA (US);
Fritz A. Bernatz, League City, TX (US);
Yi En Huang, North Potomac, MD (US);
Zachary R. Martin, Fairfax, VA (US);
Brenda A. Raich, Annandale, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
A fluid coking unit for converting a heavy oil feed to lower boiling products by thermal has a centrally-apertured annular baffle at the top of the stripping zone below the coking zone to inhibit recirculation of solid particles from the stripping zone to the coking zone. By inhibiting recirculation of the particles from the stripping zone to the coking zone, the temperatures of the two zones are effectively decoupled, enabling the coking zone to be run at a lower temperature than the stripping zone to increase the yield of liquid products.