Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia

PP-3THREE-STAGE WASTE-FREE PROCESS OF ALKYLPETROLPREPARATION FROM METHANOL ON ZEOLITE CATALYSTS BASEBachurikhin A.L.N.D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Science,Russia, Moscow 119991, GSP - 1, the Leninscky av., 47,E-mail: SECRETARY@ioc.ac.ruConstant toughening of requirements to structure and properties of automobilegasolines results in introduction of the new standards forbidding or limiting usearomatic and olefinic hydrocarbons, O-, S-, N- and metallic connections in structureof gasolines. One of alternative ways of an exit from this situation is the increase inmanufacture of a share of non-polluting automobile fuel components motor, such asalkylates and isomerizates. The limiting factor on this way is absence of enough of asource of raw materials and optimum technological decisions.The method of alkylhetrol preparation by a three-stage catalytic conversion fromaccessible raw material - methanol with use of heterogeneous catalysts such asSAPO, PdLaCa (Mg) X (Y) - Faujasite and some Al 2 O 3 -modifications is developed.The method differs presence of the following stages:1) Methanol conversion in dimethyl ether (DME) with use of catalysts SAPO andγ-Al 2 O 3 at speeds 2÷10h –1 and temperatures 300÷400°С. Thus there is practically100 %-s' methanol conversion in DME.2) Subsequent conversion DME on zeolite catalysts such as SAPO at speeds2÷4h –1 and temperatures 400÷450°С in a mix olefinic and iso-/n-parafinichydrocarbons of the following structure: ethylene - 1÷5 weights of %, propylene - 1÷4weights of %, isobuthylene - no more than 0,5 weights of %, n-butylene-1 andn-butylenes-2 - no more than 0,5 weights of %, isobutane - 10÷30 weights of %,n-butane - no more than 5 weights of %, the rest a mix of metane, ethane, propane,hydrogen, carbon monooxide and traces of formaldehyde.3) Fluid-phased alkylation of iso-/n-butane by С 2 -С 4 -olefines in zeolite catalystspresence such as PdLaCa (Mg) X (Y) - Faujasite at speeds 2÷4 h –1 and temperatures50÷100°С with preparation of alkylpetrol components, mainly, trimethylpentanes anddimethylhexanes with the following characteristics: Total conversion of olefines - about99 %, the output of liquid products from theoretical counting upon olefines - about 95%, the contents of fractions C 8 - 80÷85 weights of %, С 9+ - no more than 8 weights of%, С 5 -С 7 - no more than 9 weights of %, trimethylpentanes - 65÷70 weights of %, themass relation trimethylpentane/dimethylhexane - 5÷5,5.90