| 简介 |
FIELD : oil and gas production.SUBSTANCE : invention refers to procedure for production of motor fuel by oil fraction cracking at presence of ball alumo-silicate platinum-zeolite-containing catalyst obtained by forming hydro-gel in mineral oil, synthesised mixing solutions of sodium silicate and aluminium sulphate with water suspensions of fine dispersed powders of zeolite of type Y and filler - aluminium oxide with contents α-Al2O3 not over 85 wt %, stabilised dispersers and containing platinum-hydrochloric acid, by activation, washing, drying and baking in atmosphere of water steam. The distinguished feature of the procedure is like follows : for preparation of catalyst there is used ultra-stable zeolite Y in hydrogen or hydrogen-rare earth form - at degree of crystallinity as high, as 85%, mole ratio SiO2/Al2O3=10÷15. The degree of exchange to cations of rare earth elements of ultra-stable zeolite Y in hydrogen-rare earth form is not more, than 60%. Preliminary raw stock of catalytic cracking is hydro-fined to contents of sulphur not over 0.3 % wt. Catalytic cracking is performed with extraction of fractions of motor fuel and heavy fraction of product of catalytic cracking with temperature of beginning of boiling point above 360°C which is directed to re-cycle into source raw stock to ensure content as high, as 5 % wt.EFFECT : increased output of benzene fraction and its octane number.1 tbl |
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