6Schlesinger M D, Demeter J J, Greyson M. Catalyst for producing methane from hydrogen and carbon monoxide[J]. Ind. Eng. Chem. Res., 1956, 48 (1): 68-70.
7Lommerzheim W, Flockenhaus C. One stage combined shift- conversion and partial methanation process for upgrading synthesis gas to pipeline quality[C]//Proceeding of Tenth Synthetic Pipeline Gas Symposium, Chicago, American, 1978.
8Haynes W P, Forney A J, Elliott J J, et al. Synthesis of methane in hot gas recycle reactor pilot plant tests[J]. ACS Div. Fuel Chem. Prepr., 1974, 19: 10-42.
9Pennline H W, Schehl R R, Haynes W P. Operation of a tube wall methanation reactor[J]. Ind. Eng. Chem. Process Des.Dev., 1979, 18 (1): 156-162.
10Frank M E, Sherwin M B, Blum D B, et al. Liquid phase methanation: shift PDU results and pilot plant status[C]//Proceeding of Eighth Synthetic Pipeline Gas Symposium, Chicago, American, 1976.