| abstract |
The invention relates to a methanation catalyst for synthesizing substitute natural gas and a preparation method thereof. The methanation catalyst comprises Al2o3, MgO, NiO, La2O3, TiO2, CeO2 or ZrO2 and the mixture thereof. Compared with the existing methanation catalyst, the methanation catalyst prepared by using the method disclosed by the invention has high conversion ratio, great space velocity, high activity and good thermostability, so that the methanation catalyst and the preparation method thereof are suitable for the adiabatic non-circulation process and the adiabatic cycle process for synthesizing the substitute natural gas through the tail gas in hydrocarbon industries. |