Hydrodesulfidation of the diesel fraction of pyrolytic fuel on polymetallic catalyst |
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Authors: | V A Burakhta R I Kuz’mina I I Gavrilina R A Minasyan |
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Institution: | 1.West-Kazakhstan Innovation and Technology University,Uralsk,Kazakhstan;2.National Research Saratov State University named after N.G. Chernyshevsky,Saratov,Russia |
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Abstract: | Results are presented of a study of the liquid product formed in pyrolysis of automobile tires and fractions of this product. The diesel fraction of the pyrolytic liquid fuel was hydrodesulfided on a polymetallic catalyst. The results of the hydrodesulfidation in a flow-through laboratory installation in the temperature range 320–380°C at a hydrogen delivery rate of 6 L h–1 are shown. The experiment was performed during 1 h with preliminary activation in a flow of hydrogen for 2 h and raw material delivery rate of 4–16 mL h–1 on a polymetallic Al–Ni–V–Mo catalyst supported by γ-Al2O3. It was found that the degree of purification grows by 14% as the delivery rate is lowered from 16 to 8 mL h–1, and by 27% upon its decrease to 4 mL h–1. With temperature varied at the optimal raw material delivery rate of 4 mL h–1, the degree of purification also changes: the minimum degree of purification is observed at 320°C. The degree of purification grows by 7% as the process temperature is raised by 20°, and by 28% upon its increase by 40°. |
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