06143534 is referenced by 23 patents and cites 7 patents.

Lignite is treated with ligninase source to enhance its reactivity. In one embodiment, lignite is gasified in a subterranean reactor by simultaneous digestion by anaerobic ligninase producers, such as termite microflora, and acid formers and methanogens. In another embodiment, the lignite is treated with ligninase prior to digestion by the acid formers and methanogens. If desired, the lignite may be pretreated by alkaline hydrolysis.

Title
Microbial process for producing methane from coal
Application Number
816289
Publication Number
6143534
Application Date
December 24, 1991
Publication Date
November 7, 2000
Inventor
Hans E Grethlein
Lansing
MI, US
David Odelson
Cambridge
MA, US
Alfred P Leuschner
Cambridge
MA, US
Donald L Wise
Belmont
MA, US
O C Karkalits
Lake Charles
LA, US
Ernest E Kern
Houston
TX, US
William M Menger
Houston
TX, US
Agent
Bracewell & Patterson L
Assignee
Reliant Energy Incorporated
TX, US
IPC
C12P 5/02
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