Citation: KANG He-fei, CUI Hai-tao, WANG Ji-ru, SONG Mao-ning, ZHAO Liang-fu. Effect of Mg/P mol ratio on the catalytic performance of NiW/MgAPO-5 in the hydrocracking of tetralin to BTEX[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(2): 227-234. shu

Effect of Mg/P mol ratio on the catalytic performance of NiW/MgAPO-5 in the hydrocracking of tetralin to BTEX

KANG He-fei ^1,2 ,
CUI Hai-tao ^1,*,, ,
WANG Ji-ru ^1,2 ,
SONG Mao-ning ³ ,
ZHAO Liang-fu ^1,*,,

1.
Laboratory of Applied Catalysis and Green Chemical Engineering, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Taiyuan University of Technology, Taiyuan 030024, China

Corresponding author: CUI Hai-tao, cuiht@sxicc.ac.cn;lfzhao@sxicc.ac.cn ZHAO Liang-fu, lfzhao@sxicc.ac.cn
Received Date: 10 November 2016
Revised Date: 15 December 2016

Fund Project: the Technology Research and Demonstration Project of High Temperature Coal Tar to light aromatics MJH2016-04Strategic Science and Technology Project of Chinese Academy of Science XDA07020200the Development of Gasification Coal Tar Hydrogenation in Furnace of Lu Qi CFBYKJ-JSFW-01-2014

Figures(8)

A series of MgAPO-5 molecular sieves with a wide range of Mg/P mol ratios in the gel was synthesized by a hydrothermal process.Using MgAPO-5 as acidic supports, the bifunctional NiW/MgAPO-5 catalysts were prepared by impregnation method, and applied to the hydrocracking of tetralin to produce BTEX.The synthesized MgAPO-5 molecular sieves and NiW/MgAPO-5 samples were characterized by XRD, N₂adsorption, SEM, NH₃-TPD, Py-FTIR and H₂-TPR.The results exhibit that the Mg/P mol ratio has a great influence on the unit cell parameters, morphology, the Mg content and the acidity of MgAPO-5 samples, and the ion of Mg²⁺ is incorporated into the framework.In the hydrocracking of tetralin, with the same amount of NiW, the activity of NiW/MgAPO-5 is primarily controlled by the acidic strength of MgAPO-5.The selectivity of BTEX was determined by the combined effect of the acidity of MgAPO-5 and the (de) hydrogenation function of NiW.The highest conversion is achieved with the Mg/P mol ratio of 0.05, and the best BTEX selectivity is obtained with the Mg/P mol ratio of 0.03.
- MgAPO-5,
- Mg/P (mol ratio),
- tetralin,
- hydrocracking,
- BTEX
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