A METHOD FOR INCREASING A PRODUCTIVITY OF METHANE AND DIGESTER HEATING USING A SYNTHESIS GAS

摘要

PURPOSE: A method for enhancing methane yield using synthetic gas is provided to enhance energy efficiency and to manage integrated system. CONSTITUTION: A methane productivity is enhanced by fermenting synthetic gas with bacteria which produce acetic acid. The methane fermentation is performed in an anaerobic digester(5). The bacteria which produce acetic acid is Clostridium ljungdahlii or Clostridium autoethanogenum. The methane productivity is also enhanced by heating anaerobic digester using synthetic gas.