Process for the preparation of an aromatic hydrocarbon mixture
Номер патента: CA1212388A
Опубликовано: 07-10-1986
Автор(ы): Eduard P. Kieffer
Принадлежит: Shell Canada Ltd
Опубликовано: 07-10-1986
Автор(ы): Eduard P. Kieffer
Принадлежит: Shell Canada Ltd
Реферат: 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 catalyst comprising gallium on a carrier and a crystalline metal silicate having a SiO2/(Y2O3 + Ga2O3) molar ratio of 10-500 (Y = Al, Fe, Co and/or Cr) and a Ga2O3/Y2O3 molar ratio lower than 1, 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 catalyst 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. The quantity of gallium amounts to 1-10 %w, calculated on the quantity of crystalline metal silicate. The gallium-containing carrier is preferably an amorphous carrier or the crystalline metal silicate.
Method for the selective cleavage of a compound comprising an aromatic ring and a c-o-c linkage
Номер патента: US20240043626A1. Автор: Stéphane Streiff,Dan Wu,Andrei Khodakov,Vitaly ORDOMSKY,Jianxia ZHENG. Владелец: Ecole Centrale de Lille. Дата публикации: 2024-02-08.