A HIGH-SELECTIVITY CATALYST FOR PRODUCTION OF HIGH-QUALITY GASOLINE FRACTIONS FROM SYNGAS AND ITS PREPARATION METHOD

摘要

The invention relates to a catalyst for selective synthesis of high-qualitygasolinefractions from syngas and the preparation method of the catalyst. Thiscatalyst consists ofcobalt, a promoter and molecular sieve, wherein cobalt is presented in anamount of1-30%, the promoter is represented in an amount of 0.01-5% and the balance ismolecularsieve based on the weight of the catalyst. This catalyst provides superiorselectivity forC5-C11 isoparaffins and relatively lower selectivity for wax-type hydrocarbonswith morethan 20 carbon atoms. Thereof, this catalyst can be used for the synthesis ofhigh-qualitygasoline and is good at preventing catalyst coking. Besides, the inventionprovides apreparation method of the catalyst.