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. 30, 1990
Filed:
Jun. 27, 1989
Applicant:
Inventors:
Chih-hsiung F Liu, Houston, TX (US);
Charles V Sternling, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10J / ;
U.S. Cl.
CPC ...
48210 ; 48206 ; 252373 ;
Abstract
Fouling or plugging of surfaces in the heat exchange zone following a coal gasification reaction zone caused by deposition of flyslag is inhibited by addition of an amount of graphite to the synthesis gas at a suitable locus or loci.