| 简介 |
FIELD : chemistry.
SUBSTANCE : invention relates to field of oil-processing and oil-chemical industry, namely to preparation of catalysts of deep catalytic cracking of oil fractions for C2-C4 olefin and high-octane petroleum production. Claimed catalyst for deep oil fraction cracking contains ultrastable zeolite Y in cation-decationated form, zeolite HZSM-5, and as matrix components bentonite clay, aluminium hydroxide and amorphous alumosilicate are used with the following component content, wt % : zeolite Y 10-30; zeolite HZSM-5 - 10-30; bentonite clay - 15-40; aluminium hydroxide - 0-20; amorphous alumosilicate - 20-40. Claimed method of preparing catalysts for deep oil fraction cracking includes passing ionic exchanges of Na cations, contained in zeolite Y onto cations of rare earth metals and ammonium, ultrastabilisation of zeolite in water steam medium, mixing of zeolite Y with suspension of zeolite HZSM-5 and matrix components, dispersion drying of obtained composition with further burning and obtaining catalyst, as matrix components bentonite clay and amorphous alumosilicate or bentonite clay, aluminium hydroxide and amorphous alumosilicate being used.
EFFECT : obtaining catalyst ensuring high output of both C2-C4 olefins and petroleum.
2 cl, 2 tbl, 14 ex |
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