辽宁石油化工大学学报 ›› 2012, Vol. 32 ›› Issue (3): 13-16.

• 石油化工 • 上一篇    下一篇

MoC/CCA催化剂制备及环己烷脱氢性能研究

刘 曌马 骏王海彦白英芝柳 璐   

  1. 辽宁石油化工大学石油化工学院,辽宁抚顺113001
  • 收稿日期:2012-02-26 出版日期:2012-09-20 发布日期:2017-07-06
  • 作者简介:刘曌(1986-),女,天津市,在读硕士

Preparation and Property on Cyclohexane  Dehydrogenation Activity of Mo2C/CCA

LIU ZhaoMA Jun*, WANG Hai-yanBAI Ying-zhiLIU Lu   

  1. School of Petrochemical Engineering,Liaoning Shihua University,Fushun Liaoning 113001,P.R.China
  • Received:2012-02-26 Published:2012-09-20 Online:2017-07-06

摘要:  以(NH Mo24·4HO为钼源,以覆炭γ-Al(CCA)为载体,采用浸渍法制备出催化剂前驱物MoO/CCA。以正己烷为渗碳剂对前驱物进行碳化得到MoC/CCA。对不同碳化终温下制得的催化剂进行了XRD表征。在固定床反应装置上进行了环己烷脱氢反应,考察了催化剂的制备条件及反应条件对催化剂脱氢活性的影响。结果表明:当载体CCA覆炭量为7.82%,碳化终温为650℃,反应条件为温度475℃、压力0.1MPa、空速2h-1、氢烃体积比200∶1时,环己烷的转化率最高可达91%。

关键词:  碳化钼 ,  CCA ,  环己烷 ,  脱氢 ,  正己烷

Abstract: The Mo3O/CCA was prepared by impregnation method using the (NH4)6Mo7O24·4H2O as the molybdenum source, carbon covered γ-Al2O3 (CCA) as support, and n-hexane as the carbon source. After carbonization of Mo3O/CCA obtained Mo2C/CCA. The catalysts prepared at different carbonization temperature were characterized by XRD. The effects of preparation and reaction conditions on dehydrogenation activity of the catalyst were studied in a fixed-bed down-flow reactor. The results show that the conversion of cyclohexane up to 91% was attained under the optimum condition as follows: CCA carbon covered 7.82%, final carbonization temperature 650 ℃, reaction temperature 475 ℃, reaction pressure 0.1 MPa, liquid hourly space velocity 2 h-1 and volume ratio of hydrogen to cyclohexane 200∶1.

Key words: Molybdenum , CCA , Cyclohexane , Dehydrogenation ,  N-hexane

引用本文

刘 曌,马 骏,王海彦,白英芝,柳 璐. MoC/CCA催化剂制备及环己烷脱氢性能研究[J]. 辽宁石油化工大学学报, 2012, 32(3): 13-16.

LIU Zhao, MA Jun, WANG Hai-yan,BAI Ying-zhi, LIU Lu. Preparation and Property on Cyclohexane  Dehydrogenation Activity of Mo2C/CCA[J]. Journal of Liaoning Petrochemical University, 2012, 32(3): 13-16.

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