SUPPORTED NICKEL-CATALYST FROM HYDROXYCARBONATE OF NICKEL AND ALUMINUM

The hydroxycarbonate of nickel and aluminium (Ni/Al = 3) with a hydrot alcite-like structure is an outstanding precursor of the active compon ent of supported nickel catalysts. Good mechanical strength. and suita ble nickel content of these catalysts, which are necessary for practic al applications, can be achieved by mechanical mixing of this compound with an additional support. The catalyst prepared from a mixture of 5 6.5 wt-% of nickel-aluminium hydroxycarbonate and 43.5 wt-% of gamma-a lumina was proven to have a stable catalytic activity in the methanati on reaction at 2 MPa and 800 K.