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. 11, 1986
Filed:
Dec. 14, 1984
Andrew S Moore, North Brunswick, NJ (US);
Engelhard Corporation, Menlo Park, NJ (US);
Abstract
Coke or coke and hydrogen production may increase when the Asphalt Residual Treating (ART) Process for removing metallic and carbonaceous contaminants from hydrocarbons is operated with feed stock containing impurities that result in the deposition on the solid particulate contact material of acidic metallic compounds such as heavy metal chlorides. Coke or coke and hydrogen production is reduced by charging ammonia or other fugitive basic nitrogen compounds to the system after burning coke from the circulating inventory of catalytically inert contact material and prior to selectively vaporizing incoming charge of feed stock in the presence of the hot regenerated contact material.