Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (8): 1324-1330.DOI: 10.1016/S1872-2067(15)61112-3

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Preparation of a new solid acid and its catalytic performance in di(1-naphthyl)methane hydrocracking

Meixia Zhao, Xianyong Wei, Zhimin Zong   

  1. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China
  • Received:2016-03-03 Revised:2016-04-15 Online:2016-07-29 Published:2016-08-01
  • Contact: Xianyong Wei
  • Supported by:

    This work was supported by the Fundamental Research Fund for the Central Universities (China University of Mining & Technology, 2014ZDPY34) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Abstract:

A new solid acid was prepared by trifluoromethanesulfonic acid (TFMSA) impregnation into an acid-treated attapulgite (ATA). Di(1-naphthyl)methane (DNM) hydrocracking was used as the probe reaction to evaluate the catalytic performance of TFMSA/ATA for cleaving Car-Calk bridged bonds in coals. The results show that DNM was specifically hydrocracked to naphthalene and 1-methylnaphthalene over TFMSA/ATA in methanol in the absence of gaseous hydrogen. In particular, TFMSA/ATA was demonstrated to be stable after four cycles with slight loss in catalytic activity. Furthermore, a proposed H+ transfer mechanism successfully interprets the TFMSA/ATA-catalyzed hydrocracking reaction of DNM.

Key words: Solid acid, Di(1-naphthyl)methane, Hydrocracking, H+ transfer