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:
Dec. 11, 2007
Filed:
May. 14, 2004
Michael Siskin, Randolph, NJ (US);
Martin L. Gorbaty, Westfield, NJ (US);
Christopher P. Eppig, Vienna, VA (US);
David T. Ferrughelli, Flemington, NJ (US);
Simon R. Kelemen, Annandale, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
Michael Siskin, Randolph, NJ (US);
Martin L. Gorbaty, Westfield, NJ (US);
Christopher P. Eppig, Vienna, VA (US);
David T. Ferrughelli, Flemington, NJ (US);
Simon R. Kelemen, Annandale, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A delayed coking process for making substantially free-flowing shot coke. A coker feedstock, such as a vacuum residuum, is treated with an additive, such as a elemental sulfur, high surface area substantially metals-free solids, process fines, a mineral acid anhydride and the like. The treated feedstock is then heated to coking temperatures and passed to a coker drum for a time sufficient to allow volatiles to evolve and to produce a substantially free-flowing shot coke.