DEVELOPMENT AND PERFORMANCE RESEARCH OF CATALYSTS FOR HYDROGENATION OF COAL TAR TO JET FUEL

Abstract

Abstract: The catalytic hydrogenation of phenol oil to naphthene was studied in a high pressure reactor with both Ni-W supported MgO and acid-base coupling agent as the catalyst. The results showed that the modified magnesium oxide (0.8% by mass fraction) and acid-base coupling agent could effectively reduce the crystallinity of hydrogenation catalyst, optimize the pore structure, and improve the selectivity of cycloalkanes and aromatics. The hydrogenation activity of the catalyst was the highest at the Ni-W active metal loading of 9.0%, and the selectivity of naphthene reached 57.5%. The optimum conditions for hydrogenation of coal tar were: initial pressure of hydrogen 8 MPa, the temperature 380 ℃ and reaction time 60 min. Preparing highly selective and highly active hydrogenation catalysts and processing coal tar to jet fuel are of great significance to replace part of petroleum resources in China.

Key words: coal tar, jet fuel, phenol, alkaline oxide carrier, phosphorus modification, molecular sieve

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