Method and apparatus for converting coal into liquid fuel and metallurgical coke
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United States of America Patent
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Sep 29, 1992
Grant Date -
N/A
app pub date -
Nov 15, 1990
filing date -
Nov 15, 1990
priority date (Note) -
Expired
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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.
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