Bioreactor for mesophilic fermentation and / or thermophilic

摘要

A bioreactor (1) for producing hydrogen from plant biomass, wherein the reactor (1) comprises a primary reactor vessel (2) having a bed (3) of hydrogen producing bacteria towards its base (4), a inflow plant biomass (5), an outflow of effluent treated plant biomass (6) towards its operatively upper end (7) and a recycling inlet effluent plant biomass saturated gas (13) in the bed, and a secondary reactor vessel (8) having an inlet effluent treated plant biomass (6) from the primary reactor vessel (2), a gas outlet (10) and an outlet recycling effluent biomass vegetable saturated gas (11), driving the output of recycling effluent plant biomass saturated gas (11) to a recirculation pump (12) which, during use, recycle effluent plant biomass saturated gas from the secondary vessel reactor (8) to the primary reactor vessel (2).