Process for the preparation of an aromatic hydrocarbon mixture

Details Process for the preparation of an aromatic hydrocarbon mixture Process for the preparation of an aromatic hydrocarbon mixture

C - Chemistry, Metallurgy

07

C

260/688

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

Patent

CA 1212387

A B S T R A C T PROCESS FOR THE PREPARATION OF AN AROMATIC HYDROCARBON MIXTURE C2-C4 paraffins or hydrocarbon mixtures comprising more than 50 %w of C2-C4 paraffins are converted into an aromatic hydrocarbon mixture over a crystalline gallium silicate having a SiO2/Ga2O3 molar ratio of 25-250 and a Y2O3/Ga2O3 molar ratio lower than 1 (Y = Al, Fe, Co and/or Cr), and having an X-ray powder diffraction pattern after one hour's calcination in air in which pattern the strongest lines are shown at interplanar spacings d(.ANG.) of 11.2 + 0.2; 10.0 0.2; 3.84 + 0.07; 3.72 0.06. The silicate has been subjected at least once to a two-step treatment comprising a coke deposition and a coke-burn off with an oxygen-containing gas at 350-700 °C.

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