GASOLINE FRACTION REFORMING CATALYST AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2006 - IPC B01J23/656 B01J21/04 B01J21/06 B01J27/53 B01J37/02 C10G35/09 

FIELD: petroleum processing catalysts.

SUBSTANCE: invention provides gasoline fraction reforming catalyst containing 0.1-0.5% platinum, 0.1-0.4% rhenium, halogen (chorine, 0.7-1.5%, or chorine and fluorine, 0.05-0.1%), and carrier: surface compound of dehydrated aluminum monosulfatozirconate of general formula Al₂O₃·[ZrO(SO₄)]_x with weight stoichiometric coefficient x = 0.45·10^-2 - 9.7·10^-2 and real density 3.3±0.01 g/cm³. Catalyst preparation process comprises preparation of carrier by mixing (i) aluminum hydroxide, from which iron and sodium impurities were washed out (to 0.02%) and which has pseudoboehemite structure, with (ii) aqueous solution of monosulfatozirconic acid HZrO(SO₄)OH containing organic components (formic, acetic, oxalic, and citric acids) followed by drying, molding, and calcination. Carrier is treated in two steps: first at temperature no higher than and then at temperature not below 70°C.

EFFECT: enabled production of reforming gasolines with octane number not below 97 points (research method) with yield not less than 86% and increased activity and selectivity of catalyst.

4 cl, 2 tbl, 13 ex