METHOD OF PREPARING MOTOR FUELS FROM CARBON-CONTAINING STOCK Russian patent published in 1999 - IPC

FIELD: chemical industry. SUBSTANCE: higher yield of liquid fraction of C₅₊ hydrocarbons is achieved by catalytically processing mixture of CO,CO₂ и H₂ in two stages so that in first stage original stock is made to contact with catalyst consisting of ZSM-5 type zeolite and metal oxide component comprising, wt %: CuO, 38-64; ZnO, 24-34; Cr₂O₃, 0-22; Al₂O₃, 6-9 mixed at weight ratio of 20-50/80-50. After first stage reactor, gas stream is directed without separation to second stage where during contact with catalyst consisting of ZSM-5 type zeolite and metal oxide component comprising, wt %: ZnO, 65-70; Cr₂O₃ 29-34 and W₂O₅, 1 mixed at ratio of 30-99/70-1, there occurs conversion of dimethyl ether and synthesis gas components into gasoline fraction, gaseous hydrocarbons and aqueous fraction. EFFECT: more efficient preparation method. 10 cl, 4 dwg, 5 ex, 1 tbl