Organic base modified composite catalyst and method for producing ethylene by hydrogenation of carbon monoxide

A catalyst, comprising a component I and a component II, which are compounded in a mechanical mixing mode;

• wherein, an active ingredient of the component I is a metal oxide;
• the component II is a zeolite of MOR topology;
• in the component II, the zeolite of the MOR topology is modified with an amine selected from the group consisting of dimethylamine, trimethylamine, diethylamine, triethylamine, ethylenediamine, monopropylamine, dipropylamine, tripropylamine, isopropylamine, diisopropylamine, 1,2-dimethylpropylamine, 1,2-propanediamine, 2-propeneamine, cyclopropylamine, n-butylamine, di-n-butylamine, isobutylamine, sec-butylamine, 1,4-butanediamine, tert-butylamine, diisobutylaminehexylamine, 2-ethylhexylamine, hexamethylenediamine, trioctylamine, and combinations thereof;
• the modification with the amine is to disperse the amine into B acid sites in 12-ring porous channels of the zeolite of the MOR topology.