CO₂メタネーション触媒に及ぼす原料ガス中の不純物の影響およびその耐性強化

抄録

CO₂ methanation over Ni-based catalysts was studied under conditions simulating steelworks off-gas with trace H₂S. Sulfur in the feed gas deactivated the catalyst, but high-pressure operation suppressed the deactivation. Highly crystalline Ni formed under these conditions may enhance sulfur tolerance. High-temperature calcination also improved crystallinity and durability.