石油学报(石油加工) ›› 2019, Vol. 35 ›› Issue (1): 35-39.doi: 10.3969/j.issn.1001-8719.2019.01.005

• 研究报告 • 上一篇    下一篇

Ni2P/rGO-Al2O3催化剂的表征及加氢脱氧性能

徐海升,王豪,何丽娟   

  1. 西安石油大学 化学化工学院,陕西 西安 710065

  • 收稿日期:2018-01-16 修回日期:2018-05-13 出版日期:2019-01-25 发布日期:2019-01-29
  • 通讯作者: 徐海升,男,副教授,博士,从事石油工业催化剂方面的研究,E-mail:xhs74@xsyu.edu.cn E-mail:xhs74@163.com
  • 基金资助:
    西安石油大学研究生创新与实践能力培养立项项目(YCS16211026和YCS17211018)资助

Characterization of Ni2P/rGO-Al2O3 Catalyst and Its Catalytic Performance in Hydrodeoxygenation

XU Haisheng, WANG Hao, HE Lijuan   

  1. College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China
  • Received:2018-01-16 Revised:2018-05-13 Online:2019-01-25 Published:2019-01-29

摘要: 以鳞片石墨为原料,通过Hummer法合成氧化石墨(GO),然后与拟薄水铝石溶液充分混合后还原,得到还原氧化石墨烯氧化铝复合载体(rGO-Al2O3),再采用浸渍法制备出负载型Ni2P/rGO-Al2O3催化剂。通过扫描电子显微镜、物理吸附仪和X射线衍射仪等手段对催化剂进行了表征。以苯甲醛加氢脱氧(HDO)制甲苯为反应体系,在反应温度300℃、压力2.5 MPa、反应时间4 h条件下,对比了rGO-Al2O3复合载体与单独rGO或Al2O3负载的Ni2P催化剂的加氢脱氧性能。结果表明,rGO-Al2O3具有发达的孔结构和较大的表面积,Ni2P/rGO-Al2O3催化剂展现出良好的催化活性和选择性。

关键词: rGO-Al2O3复合载体, 加氢脱氧;苯甲醛;吸附-脱附

Abstract: Using flake graphite as raw material, graphite oxide (GO) was synthesized by hummer method, and GO was mixed with pseudo-boehmite solution to synthesize reduced graphene oxide-alumina (rGO-Al2O3 ) composite support. Then, Ni2P/rGO-Al2O3catalyst was prepared by impregnated method. The catalysts were characterized by scanning electron microscopy (SEM), physical adsorption (BET) and X-ray diffraction (XRD). The performance of Ni2P catalyst supported on rGO-Al2O3 composite support and rGO or Al2O3 alone in hydrodeoxygenation (HDO) was compared, under the conditions of reaction temperature of 300℃, pressure of 2.5 MPa and reaction time of 4 h with benzaldehyde as substrate. Results show that the rGO-Al2O3 has abundant of pore structure and large surface area, and the Ni2P/rGO-Al2O3 catalyst shows excellent catalytic activity and selectivity.

Key words: rGO-Al2O3 composite support, hydrodeoxygenation, benzaldehyde, adsorption-desorption