Research progress on methanation catalyst research for synthetic natural gas from coal in fluidized bed

Based on the main components of methanation catalysts for synthetic natural gas from coal in fixed bed and similar preparation technology of F-T synthesis fluidized bed,research status and development ideas of methanation catalyst research for synthetic natural gas from coal in fluidized bed were discussed from catalyst composition and preparation methods. Compared with methanation catalyst in fixed bed,in addition to highly active,high stability,sintering resistance and carbon deposition resistance,methanation catalyst used in fluidized bed must have good mechanical strength and abrasion resistance.Therefore methanation technology research in fluidized bed is focused on developing wear-resistant methanation catalyst.Improving the mechanical strength and wear-resistance of fluidized-bed catalyst by some methods such as choosing high strength load carrier,appropriate roasting temperature,spray granulation molding method,adding the appropriate dosage of binder are reommended.