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Method and apparatus for producing methane from carbonaceous material

  • US 7,575,613 B2
  • Filed: 05/26/2005
  • Issued: 08/18/2009
  • Est. Priority Date: 05/26/2005
  • Status: Expired due to Fees
First Claim
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1. A method for producing methane from a carbonaceous material comprising:

  • conveying said carbonaceous material entrained in an inert carrier fluid into a reactor;

    exposing said carbonaceous material in said reactor to a swirling stream of a hydrogen gas to react said carbonaceous material with said hydrogen gas in a first reaction zone and form an exit gas that includes said methane;

    contacting said exit gas with hydrogen gas in a second reaction zone having a lower reaction rate than said first reaction zone to increase an amount of said methane in said exit gas; and

    extracting said exit gas from said reactor.

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