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Herman P Miller III: Vacuum retort anaerobic digestion system and process. September 13, 2005: US06942798 (15 worldwide citation)

Anaerobic digestion system and process in which a liquor containing a digestible biomass is processed a retort vessel at a thermophilic temperature and with a vacuum pressure at the surface of the liquor. A pressurized feedstock is introduced into the vessel so that the feedstock impacts upon the su ...


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Herman P Miller: Vacuum retort anaerobic digestion system and process. Edward S Wright, July 15, 2004: US20040134853-A1

Anaerobic digestion system and process in which a liquor containing a digestible biomass is processed a retort vessel at a thermophilic temperature and with a vacuum pressure at the surface of the liquor. A pressurized feedstock is introduced into the vessel so that the feedstock impacts upon the su ...