Investigation of the conversion kinetics for hydrocarbons in the second stage of the vacuum hydrocracking of gas oil
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From experiments on hydrocracking in the presence of nickel catalysts supported on an aluminosilicate and a zeolite, it has been established that the extent of feedstock conversion can be varied over wide limits by varying the temperature and space velocity of feedstock supply.
The features of feedstock conversion in the presence of both catalysts are similar. However, an equal degree of decomposition is achieved on the zeolite-supported catalyst at a temperature some 50°C lower than that for the aluminosilicate-supported catalyst.
The apparent activation energy of the cracking reaction using a zeolite-supported catalyst is also appreciably lower than when using an aluminosilicate-supported catalyst.
The experimental results are represented satisfactorily by A. V. Frost's equation for inhibited unimolecular processes.
KeywordsNickel Activation Energy Zeolite Hydrocarbon Aluminosilicate
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