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. 29, 1992
Filed:
Nov. 15, 1990
Richard A Wolfe, Abingdon, VA (US);
Chang J Im, Abingdon, VA (US);
Robert E Wright, Bristol, TN (US);
Coal Technology Corporation, Bristol, VA (US);
Abstract
Apparatus and method for converting coal into useful motor fuels and metallurgical coke using a self-cleaning coal pyrolyzer wherein coal is heated in the absence of air at temperatures greater than 800.degree. F. to remove volatile hydrocarbon gases therefrom. Char remaining after such pyrolyzation is cooled and pulverized and mixed with selected binders at temperatures ranging from 125.degree. to 200.degree. F. to form briquettes. The briquettes are calcined at temperatures ranging from 1800.degree. to 2000.degree. F. to form metallurgical coke. The gaseous hydrocarbons are separated into liquid coal fuels, non-condensable gases and water vapor. The liquid coal fuels are further separated into various motor fuels while the non-condensable gases are used to fuel the coal pyrolyzer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile