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:
Sep. 27, 1994
Filed:
Jul. 29, 1992
Douglas A Freymeyer, Everson, WA (US);
Richard L Holloway, Bellingham, WA (US);
Ronald J Kiracofe, Bellingham, WA (US);
Vijay R Sampath, Bellingham, WA (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A consistent high quality coke is produced by feeding a balancing stream comprising hydrocarbons to a delayed coking drum in addition to the heavy hydrocarbonaceous coker feedstock. The process of this invention reduces the contaminant content of coke by coking contaminant-containing residua and a reduced contaminant hydrocarbon balancing stream. Preferably, the balancing stream is a contaminant diluent, such as unreduced crude. The balancing stream may be a crude which is different from the base crude processed in the refinery crude tower and is preferably selected as a sulfur and/or metals diluent having a lower concentration of sulfur-containing or metal-containing compounds than the heavy coker feedstock.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile