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Fluid fuel from coal and method of making same

  • US 4,762,528 A
  • Filed: 09/05/1986
  • Issued: 08/09/1988
  • Est. Priority Date: 09/05/1986
  • Status: Expired due to Fees
First Claim
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1. A method for generating from coal a liquid fuel in the form of a combustible liquid carbon slurry comprising:

  • a. reacting substantially the entire said coal with oxygen and carbon dioxide in a gas generation chamber to produce products consisting essentially of ash and carbon monoxide entrained in a gas stream with reacted gases and other gases;

    b. passing said gas stream into a reaction chamber containing catalyst for the reverse Boudouard reaction to convert the carbon monoxide into carbon dioxide and free carbon and recovering the free carbon from the reaction chamber;

    c. separating the gases in said reaction chamber into carbon dioxide and residue gases; and

    d. returning at least a portion of the carbon dioxide rich gas stream to the said gas generation chamber for reaction with coal;

    e. recovering the said residue gas stream.

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