06291232 is referenced by 15 patents and cites 8 patents.

Anaerobic digestion system and process in which the raw digester gas containing methane and other gaseous components is cooled at atmospheric pressure in the presence of a liquid to a temperature at which the other gaseous components have a substantially higher solubility in the liquid than methane and are substantially all absorbed into the liquid, leaving pure, dry methane gas. That methane gas is then used in other parts of the system, including the digester and a refrigeration system for cooling the raw gas.

Title
Anaerobic digestion system and process
Application Number
9/414908
Publication Number
6291232 (B1)
Application Date
October 8, 1999
Publication Date
September 18, 2001
Inventor
Herman P Miller III
P.O. Box 1769, Stockton
CA, US
IPC
C07C 1/00
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