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Article

APPLICATION OF ZEOLITE Y-BASED NI–W SUPPORTED AND IN SITU PREPARED CATALYSTS IN THE PROCESS OF VACUUM GAS OIL HYDROCRACKING

Petroleum Chemistry: USSR (English Translation of Neftekhimiya). 2017. Vol. 57. No. 14. P. 1287-1294.
Onishchenko M., Kulikov A., Maksimov A.

The activity of supported and in situ synthesized sulfide Ni–W catalysts based on a low-siliconzeolite Y (SiO2/Al2O3 = 5.2) in the hydrocracking of vacuum gas oil is studied. It is shown that the temperature and time of reaction affect the fractional composition and the sulfur content in conversion products. Itis found that the phase of tungsten sulfide as well as the mixed Ni−W−S phase active in hydrogenation areformed on the catalyst surface. It is proposed that an increase in activity for the in situ formed catalyst maybe explained by a high content of sulfide phases on the catalyst surface and accessibility of the zeolite pore system