OP-II-3

OP-III-B-7NOVEL APPROACH FOR MUNICIPAL SOLID WASTE BIOGASREFORMING INTO HYDROGEN FOR FUEL CELL POWEREDGENERATORSLysikov A.I. 1 , Okunev A.G. 1 , Molodtsov D.V. 2 , Maslikov V.I. 21 Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia, lyanig@catalysis.ru2 Saint-Petersburg State Polytechnical University, St. Petersburg, RussiaAmong the different municipal solid waste (MSW) impacts, biogas emission is theone with the highest environmental impact because of its greenhouses effect. SingleMSW dump emits up to several thousands of cubic meters per hour of biogas whichconsists of 45-65 % of methane. Biomethane utilisation in increasingly popularnowadays on-site landfill gas insinerators results in a flue gases contaminated withtoxic and greenhouse pollutants, including carbon dioxide (30-40 vol.%), hydrogendisulfide (200 ppm) and others [1].Our study focuses on the development of the alternative environment friendlytreatment sequence that is suitable for electricty production from biogas. Thesequnce comprises CO 2 and H 2 S separation, biogas conversion to CO free hydrogenrich gas, hydrogen oxidation in polymer-electrolyte fuel cell.This paper deals with the experimental study of the second step in the sequence,i.e. purified biogas reforming into CO free hydrogen rich gas. The sorption-enhancedbiogas reforming scheme [2] was adopted for hydrogen production. The schemecomprises one pot catalytic steam reforming ofmethane coupled with high temperature CO 2Biogas/SteamH2 richgasabsortion using CaO sorbent. A pilot scalereformer was designed (fig.1) which has up to43 liter H 2 /hour output and use temperatureCO2/Airswing sorbent regeneration method. The reactorswere loaded with the mix of porous calcium oxideAirgranules, prepared in the Boreskov Institute ofCatalysis [3], and commercial Ni catalysts NIAP-03 (11 wt.% NiO). The methanator was loadedwith commercial catalyst NIAP-07 (36 wt.% NiO).CoolingBiogas was modelled using three differentwater Condensatecompositions of the methane, CO 2 and nitrogen Fig. 1. Biogas reforming scheme.Reactor 1Reactor 2Methanator192