5KOPYSCINSKI J, SCHILDAUER T J,BIOLLAS S M A. Production of synthetic natural gas ( SNG) from coal and dry biomass: Atechnology review from 1950 to 2009[J] . Fuel, 2010,89(8) : 1763-1783.
6MEYER H S,HILL V L,FLOWERS A,HAPPEL J,HNATOW M A. Direct methanation-A new method of converting synthesis gas tosubstitute natural gas[J]. Prepr Pap Am Chem Soc Div Fuel Chem, 1982, 27(1) : 109-115.
7OLIPHANT J L, FLOWER R W( PANNELL R B, BARTHOLOMEW C H. Chemisorption of hydrogen sulfide on nickel and rutheniumcatalysts: I Desorption isotherms[J]. J Catal, 1978, 51(2) : 229-242.
8MILLS G A, STEFFGEN F W. Catalytic methanation[J]. Catal Rev, 1974,8(1) : 159-210.
9HOU P Y, WISE H. kinetic studies with a sulfur-tolerant methanation catalyst[J]. J Catal, 1985,93(2) ; 409-416.
10HAPPEL J,YOSHIKIYO M,YIN F, OTAROD M, CHEH H Y,HNATOW M A, BAJARS L, MEYER H S. Isotopic assessment ofmethanation over molybdenum sulfide cata!ysts[J]. Ind Eng Chem Prod Res Dev, 1986,25(2) : 214-219.
