Description: A coal-based syngas synthesis gas catalyst and preparation method used, involving a catalyst for hydrogenation of coal-based synthesis gas methanation of synthesis gas used. To provide a high and stable low-temperature activity, can effectively improve the catalyst and preparation method for coal-based syngas synthesis gas conversion of synthesis gas and methane-way yield. The catalyst for the ytterbium - Promote co-precipitation of Ni - Zr-based catalyst comprising Ni, Zr main component and Yb accelerator. The Ni (NO3) 2 · 6H2O, Zr (NO3) 4 · 3H2O, and Yb (NO3) 3 · 6H2O plus mixing water to form a solution A; K2CO3 dissolved in water to prepare a solution B; and the solution was injected into the vessel A and B the reaction, the material was filtered to obtain a precipitate; was washed with deionized water until the eluent K + ion concentration below 0.1ppm After filtration, drying, calcination, that is.
DOI: B01J23 / 83 (2006.01) I; C10L3 / 08 (2006.01) I