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. 16, 2003
Filed:
Apr. 12, 2002
Applicant:
Inventors:
Robert French, Wellington, CO (US);
Robert A. Reeves, Arvada, CO (US);
Charles B. Benham, Littleton, CO (US);
Assignee:
GTL Energy, Wellington, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/700 ; C07C 1/02 ; C10J 3/00 ; F02G 3/00 ;
U.S. Cl.
CPC ...
C07C 2/700 ; C07C 1/02 ; C10J 3/00 ; F02G 3/00 ;
Abstract
The invention provides a method by which low-rank coal may be processed to provide a high-energy feedstock for coal gasification and synthesis gas production. Preliminary coal, preparation, which may include washing and drying, is followed by wax-impregnation to produce a high-energy, low-moisture, stable feedstock. The wax is preferably obtained from an on-site Fischer-Tropsch reactor that also produces diesel fuel and naptha.