Citation: YAN Peng-hui, TAO Zhi-chao, HAO Kun, WANG Yu-dan, YANG Yong, LI Yong-wang. Effect of impregnation methods on nickel-tungsten catalysts and its performance on hydrocracking Fischer-Tropsch wax[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(6): 691-697. shu

Effect of impregnation methods on nickel-tungsten catalysts and its performance on hydrocracking Fischer-Tropsch wax

YAN Peng-hui ^1,2,3 ,
TAO Zhi-chao ^3,4 ,
HAO Kun ^3,4 ,
WANG Yu-dan ^1,2,3 ,
YANG Yong ^1,3,4,, ,
LI Yong-wang ^1,3,4

1.
1. State key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;

Corresponding author: YANG Yong,
Received Date: 14 January 2013
Available Online: 6 March 2013
Fund Project: 国家高技术研究发展计划(863计划,2011AA05A205) (863计划,2011AA05A205)

Three hydrocracking catalysts were prepared by impregnation method with different incorporation manners of Ni/W metals on HY/Al₂O₃ support. The effect of combination methods on acidity, hydrogenation capability of the catalysts and its hydrocracking performance on FT wax was studied. The balance between hydrogenation performance and cracking performance could be modulated by adjusting the metal-support combination methods. Ni/W pre-impregnated on HY can increase the hydrogenation capability of the catalyst and simultaneously lower the acidity of the support. The results show that the coordination of high hydrogenation capability and low acidity of catalyst can inhibit the formation of secondary cracking on some extent, and increase the selectivity of diesel. While Ni/W metals supported on HY/Al₂O₃ can achieve a relative balance of hydrogenation and cracking, thus the catalysts have a higher activity and the more flexible ability to modulate reaction.
- hydrocracking,
- catalyst,
- F-T wax,
- diesel,
- selectivity
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