MICROSPHERIC BIZEOLITE CATALYST FOR INCREASING OCTANE NUMBER OF PETROL OF VACUUM GAS OIL CRACKING AND METHOD OF ITS PREPARATION Russian patent published in 2013 - IPC B01J29/08 B01J29/40 B01J29/70 B01J29/80 B01J21/02 B01J21/12 B01J21/16 B01J37/30 B01J37/10 C10G11/05 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to catalyst and method of preparing microspheric bizeolite catalyst of vacuum gasoil cracking. Described is catalyst, including ultrastable zeolite Y with matrix constant from 24.30 to 24.55 Å and content of rare earth elements 3.0-6.0 wt %, zeolite HZSM-5 with silica module from 25 to 40 and matrix, in which as components used are bentonite clay, aluminium hydroxide and amorphous alumosilicate. Catalyst contains in wt %:zeolite Y 15-25; zeolite HZSM-5 1-5; bentonite clay 15-30; aluminium hydroxide 15-30; amorphous alumosilicate 20-45. Also disclosed is method of preparation of said catalyst, including application of zeolite Y with matrix constant from 24.30 to 24.55 Å, carrying out ionic exchanges on ammonium cations and rare earth elements on zeolite Y until content of rare earth elements in zeolite is 3.0-6.0 wt %, ammonium 7.0-8.0%, zeolite ultrastabilisation in water vapour medium, after ultrastabilisation third ionic exchange on ammonium cations and further mixing of zeolite with matrix components are carried out.

EFFECT: simultaneous increase of petrol output and octane number of cracking petrol.

2 cl, 2 tbl, 8 ex