Abstract
The studies dealt with the influence of mesoporous aluminosilicate (MP-Al-Si) and its mixture with nanosize nickel powder (MP-Al-Si/Ni) on the product composition of cracking of natural bitumens (Tatarstan Republic) containing less than 7 % of ibp-200°C fractions in an autoclave reactor. Addition of mesoporous aluminosilicate (5 wt.%) to bitumen was shown to favor the deep destruction of high-molecular components and to increase the proportion of fractions boiling aut below 360°C. In the presence of the MP-Al-Si/1%Ni mixture, the coke formation slowed down to less than half, the content of ibp-360 °C fractions being increased by 14.2–14.7 wt % and that of the products tars and asphaltene destruction by 1.4–2.7 wt % against their contents in the bitumen cracking products in the presence of MP-Al-Si. The use of MP-Al-Si allows the effective processing of heavy hydrocarbon materials to gasoline and diesel fraction at low yields of gas and seal products.
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