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. 30, 1980
Filed:
Dec. 15, 1978
Applicant:
Inventor:
George J Snell, Fords, NJ (US);
Assignee:
The Lummus Company, Bloomfield, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10J / ;
U.S. Cl.
CPC ...
4819 / ; 208 / ; 208 / ;
Abstract
An ash containing heavy bitumen recovered from the deashing step of a coal liquefaction process is subjected to vacuum flashing to provide a residual product having a softening point of no less than 350.degree. F. and no greater than 550.degree. F. Subsequently, the flashed product is solidified and pulverized so that 100 percent passes through a 100 mesh screen. The pulverized fraction, without prior coking thereof, is entrained in a gas stream and then subjected to gasification.