石油化工高等学校学报

石油化工高等学校学报 ›› 2015, Vol. 28 ›› Issue (4): 1-6.DOI: 10.3969/j.issn.1006-396X.2015.04.001

• 石油化工 •    下一篇

N a BH4 低温还原的负载型镍基催化剂苯酚加氢的研究

石 斌1,  成文文1, 2,  李志祥1, 3   

  1. ( 1. 中国石油大学( 华东) 重质油国家重点实验室, 山东青岛2 6 6 5 8 0; 2. 滨州职业学院轻纺化工学院, 山东滨州2 5 6 6 0 3;
    3. 中国神华包头煤化工有限责任公司, 内蒙古包头0 1 4 0 1 0)
  • 收稿日期:2015-01-25 修回日期:2015-06-20 出版日期:2015-08-25 发布日期:2015-08-25
  • 作者简介:石斌( 1 9 7 1 - ) , 男, 博士, 副教授, 从事石油化学、 重质油轻质化、 煤化学的研究; E - m a i l : s h i b i n 7 1@u p c . e d u. c n。
  • 基金资助:
    中央高校基本科研业务费专项资金资助( 2 7 R 1 1 0 4 0 5 4 A) 。

Catalytic Performance for Phenol Hydrogenation of Nickel  Supported Catalysts Reduced by NaBH4

  1. (1.State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao Shandong 266580,China;  2.Department of Textile and Chemical Engineering, Binzhou Vocational College,Binzhou Shandong 256603，China;  3.Shenhua Baotou Coal Chemical Co.,Ltd.,Baotou Inner Mongolia 014010, China)
  • Received:2015-01-25 Revised:2015-06-20 Published:2015-08-25 Online:2015-08-25

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摘要： 采用等体积法分别将3种镍盐 N i ( NO3) 2、 N i C l 2、 N i S O4 浸渍于γ - A l 2O3 或S i O2, 然后用 N a BH4 低温液相还原制备了负载型金属镍基催化剂, 考察了镍源、 载体、 还原剂用量、 反应温度等对负载型镍基催化剂苯酚加氢性能的影响。结果表明, 3种镍源中 N i C l 2 的还原程度最高, 适于作为 N a BH4 液相还原体系的催化剂镍源。经 N a BH4 液相还原的γ - A l 2O3 负载的镍基催化剂苯酚加氢活性远高于S i O2 负载催化剂, 加氢产物以环己醇为主。还原剂 N a BH4 的用量对催化剂的加氢活性具有显著影响, 当n( B) / n( N i ) 为3时, 催化剂的苯酚转化率最高。经过 N a BH4 还原制备的镍基催化剂耐高温性和稳定性较差, 活性组分与载体之间的作用较弱, 在高温加氢条件下容易发生团聚而失去活性。

关键词: 苯酚,  , 加氢,  , 镍基催化剂, 环己醇,  , N a BH4, 载体

Abstract: Nickelbased supported catalysts on γAl2O3 or SiO2 from Ni(NO3)2,NiCl2 and NiSO4 were prepared by NaBH4 reduction at low temperature. The effect of supports, nickel source, loading and reduction method on the catalytic performance of phenol hydrogenation was investigated . Among the three nickel salts, NiCl2 was the best in NaBH4 reduction system. It was shown that in NaBH4 reduction system the support γAl2O3 displayed better than SiO2. The main products of phenol hydrogenation were cyclohexanol and cyclohexanone, and the selectivity of cyclohexanol was higher on nickel supported catalysts. When the ratio of n(B)/n(Ni) was 3, the catalytic conversion of phenol hydrogenation was the highest. However, the nickel supported catalysts prepared by NaBH4 reduction were vulnerable in hightemperature resistance. 

Key words: Phenol,    ,  Hydrogenation,    ,  Nickelbased supported catalysts,    ,  Cyclohexanol,    ,  NaBH4,    ,  Support

引用本文

石 斌, 成文文, 李志祥. N a BH4 低温还原的负载型镍基催化剂苯酚加氢的研究[J]. 石油化工高等学校学报, 2015, 28(4): 1-6.

Shi Bin,Cheng Wenwen,Li Zhixiang. Catalytic Performance for Phenol Hydrogenation of Nickel  Supported Catalysts Reduced by NaBH4 [J]. Journal of Petrochemical Universities, 2015, 28(4): 1-6.

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