Device for converting biomass to reduced mediator, system for converting biomass to hydrogen comprising it, and associated method

摘要

Device for converting biomass to reduced mediator, system for converting biomass to hydrogen comprising it, and associated method The invention relates to a device (1) for converting biomass (10) into a redox mediator (11) in reduced form (110), comprising an assembly (12) of microbial fuel cells (120) comprising: a first compartment (1200) comprising an anode (1200a) and fermentative microorganisms (1200b) and electroactive microorganisms (1200b) , and a second compartment (1201) comprising a cathode (1201a) and a solution (1201b) comprising the mediating agent (11), and an external resistor (1203) connecting the cathode (1201a) and the anode (1200a). The value of the external resistance (1203) of at least one microbial fuel cell (120) is distinct from that of at least one other microbial fuel cell (120). The device thus makes it possible to induce segregation of fermentative microorganisms and electroactive microorganisms along the assembly (12). Figure for the abstract: Fig. 1