METHOD OF ALKYLATION OF BENZENE WITH ETHYLENE AND CATALYST FOR IMPLEMENTATION OF THE METHOD Russian patent published in 2005 - IPC

Abstract RU 2256640 C1

FIELD: petrochemical processes.

SUBSTANCE: alkylation is carried out at 250-425°C, pressure 0.1 to 2.5 MPa, benzene/ethylene molar ratio 1-5, and volume flow rate of raw material 0.5 to 3.5 h-1 in presence of spherical zeolite-containing catalyst having following composition: 5-55 wt % high-silica ZSM-5-type zeolite with silica/alumina molar ratio 20-150 and 45-95 wt % amorphous aluminosilicate carrier. Chemical analysis of catalyst, wt %: aluminum oxide 3.0-9.5, rare-earth element oxides 0.4-5, calcium oxide 1.0-5.0, sodium oxide 0.1-0.6, silicon oxide - the balance.

EFFECT: increased yield of ethylbenzene and alkylation selectivity.

2 cl, 1 tbl, 5 ex

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RU 2 256 640 C1

Authors

Rogov M.N.

Rakhimov Kh.Kh.

Elin O.L.

Ishmijarov M.Kh.

Mjachin S.I.

Prokopenko A.V.

Luk"Janchikov I.I.

Mel'Nikov V.B.

Makarova N.P.

Vershinin V.I.

Smirnov V.K.

Dates

2005-07-20Published

2004-04-19Filed