142M471B3J 1 7YNJ3PO35Z 1 Biofuels 1 Carbon Dioxide 1 H2/CO2 1 Hydrogen 1 Journal Article 1 mehr ... Methane 1 OP0UW79H66 1 Research Support, Non-U.S. Gov't 1 anaerobic granules 1 biogas upgrading 1 biological methods 1 hydrogenotrophic methanogenesis weniger ...