Process for the preparation of an aromatic...

Details Process for the preparation of an aromatic... Process for the preparation of an aromatic...

C - Chemistry, Metallurgy

07

C

260/688

C07C 2/00 (2006.01) B01J 29/87 (2006.01) C07C 15/02 (2006.01) C10L 1/06 (2006.01)

Patent

CA 1295343

A B S T R A C T PROCESS FOR THE PREPARATION OF AN AROMATIC HYDROCARBONS- CONTAINING MIXTURE. A process for the preparation of an aromatic hydrocarbons- containing mixture by contacting a natural gas containing more than 50%w of methane and furthermore paraffins with at least three carbon atoms per molecule at a pressure higher than 20 bar and at elevated temperature with a catalyst comprising a crystalline silicate containing at least one of the metals aluminium and gallium, which silicate has the following properties after one hour's calcination in air at 500°C: a) an X-ray powder diffraction pattern in which the strongest lines are the lines given in Table A, and b) in the formula which represents the composition of the silicate, expressed as moles of the oxides, the SiO2/Al2O3 molar ratio is 25-400 and/or the SiO2/Ga2O3 molar ratio is 25-250. The invention further relates to a process for the preparation of middle distillates and gasoline in which the above-described process is employed as first step.

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