PHYSICAL AND CHEMICAL CHARACTERISTICS AND CATALYTIC ACTIVITY OF COMPOSITES BASED ON MESOPOROUS ALUMINOSILICATES

Abstract

In the article, a mesoporous aluminosilicate of the Al-HMS type was synthesized and used as an acid support for Ni-Mo-containing catalysts. The physicochemical characteristics of the synthesized samples were studied by low-temperature nitrogen adsorption/desorption, BET, and X-ray small-angle diffraction. The catalytic activity of Ni/Al-HMS-H-bentonite and Mo/Al-HMS-H-bentonite was investigated during the conversion of n-hexadecane. It has been shown that the highest activity and selectivity in the process of hydroisomerization of n-hexadecane under optimal conditions (320 °C, 1 h-1) is possessed by a sample of a catalyst promoted with molybdenum based on Al-HMS. The yield of isoparaffins on this sample is 42 wt% with a selectivity of 91%.

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