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:
Jan. 18, 2011
Filed:
Jun. 24, 2008
Method to alter coke morphology using either polynuclear aromatic compounds or functionalized lignin
Applicants:
Ramesh Varadaraj, Flemington, NJ (US);
Michael Siskin, Randolph, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
Inventors:
Ramesh Varadaraj, Flemington, NJ (US);
Michael Siskin, Randolph, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
Assignee:
ExxonMobil Research & Engineering Co., Annandale, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for altering coke morphology in a delayed coking process of heavy oil is provided. An effective amount of one or more oil dispersible or oil soluble polynuclear aromatic compounds, or functionalized lignin, is added or contacted with the resid or heavy oil at a point before or after the step of heating the heavy oil to coking temperatures. The addition of additives facilitates the formation of shot coke and inhibits the formation of sponge coke.