| 摘要 |
Process for the preparation of an aromatic hydrocarbon mixture in which a H2/CO mixture (molar ratio 0,25-1.0) is contacted with a mixture of two catalysts: - one (x) capable of catalyzing the conversion of a H2/CO mixture into a cyclic oxygen-containing hydro-carbons (e.g. a Zn-Cr mixture containing 60-80 atom % of Zn). - the other (y) a crystalline alumino-silicate, stable to at least 600 DEG C, with a SiO2/Al2O3 molar ratio of 200-750 and an average crystallite size of 400-1500 nm, and prepared by maintaining the starting compounds at elevated temperature until the crystalline silicate is formed, followed by its separation and calcination. Composition of starting mixture in the alumino-silicate preparation (in moles of oxides - M = Alkalimetal) M2O: SiO2 = 0,01 - 0,35 [(C3H7)4 N]2O: SiO2 = 0,01 - 0,4 SiO2: Al2O3 = 150 - 1500 H2O: SiO2 = 5.65 Ratio X : Y = 1 to 4-8 The process is performed at 300 - 450 DEG C, a pressure of 5 - 100 bar and a space velocity of 300 - 3000 Nl gas/l catalyst/h. |
