CATALYST AND GASOLINE-ALKYLATE PRODUCTION PROCESS Russian patent published in 2007 - IPC B01J31/16 B01J21/06 B01J23/06 B01J23/02 B01J23/72 B01J23/755 B01J23/08 B01J23/10 C07C2/58 

FIELD: petrochemical process catalysts.

SUBSTANCE: invention relates to chemistry of heterogeneous catalysts and is directed to production of high-octane gasoline component via alkylation of isobutane with butane-butylene fraction on heterogeneous catalysts. Solid catalyst represents porous superacid based on zirconium and/or hafnium metallosilicates promoted with salts of double- or triple-charged metal cations with double-charged anions and depicted by general formula (EO₂·aSiO₂)·b(M_cX_d) wherein E = Zr and/or Hf, a=17-34; b=0.5 when c=1 and d=1, M= Ni²⁺, Zn²⁺, or ZrO²⁺, X=SO₄ ^2- or ZrF₆ ^2-; or b=0.1666 when c=2 and d=3, M=Sc³⁺, Y³⁺, or Ga³⁺ and X= SO₄ ^2-, parameter "a" being allowed to deviate from indicated value to larger or lesser side by 20% and parameter "b" by 5%. High-octane gasoline component is produced as indicated above at temperature 348 to 375 K, pressure 1.7 to 2.5 MPa, isobutane-to-butenes molar ratio 10-15, and volume feed supply velocity between 6.4 and 8.5 g/mL catalyst/h. Catalyst can optionally be regenerated.

EFFECT: enhanced conversion, yield of alkylate, productivity, and prolonged catalyst lifetime.

7 cl, 4 tbl, 11 ex