EFFECT OF PROCESS CONDITIONS ON PERFORMANCE OF FISCHER-TROPSCH WAX HYDROCRACKING CATALYST

Abstract

Abstract: The hydrocracking catalysts were prepared by loading Ni-W onto USY-Al2O3 carrier through incipience wetness impregnation method and characterized by X-ray diffraction，infrared diffuse reflectance Pyridine adsorption and low temperature nitrogen adsorption desorption techniques. The effects of temperature, space velocity, hydrogen-oil ratio, and pressure on the hydrocracking performance of Fischer-Tropsch waxes were investigated by the single-factor variable method. The results showed that the influence of operating conditions changes as orders: temperature> space velocity> hydrogen oil volume ratio> pressure. At the optimized conditions of 340°C, 4 MPa, Sv 1.5h-1, hydrogen to oil ratio 1 000(v), the conversion is the best. The conversion rate of heavy wax oil is as high as 98.11%, light oil yield reaches 93.5%, and the yield of cracked gas is only 6.5%.

Key words: Fischer-Tropsch wax, catalyst, hydrocracking, process condition

CLC Number:

References

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