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[1]诸晓东,陈长林.Pt/Nd2O3-WO3/ZrO2催化甘油氢解制1,3-丙二醇[J].南京工业大学学报(自然科学版),2013,35(01):1-19.[doi:10.3969/j.issn.1671-7627.2013.01.005]
 ZHU Xiaodong,CHEN Changlin.Hydrogenolysis of glycerol over Pt/Nd2O3-WO3/ZrO2 catalysts for 1,3-propanediol[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(01):1-19.[doi:10.3969/j.issn.1671-7627.2013.01.005]
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Pt/Nd2O3-WO3/ZrO2催化甘油氢解制1,3-丙二醇()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年01期
页码:
1-19
栏目:
出版日期:
2013-01-20

文章信息/Info

Title:
Hydrogenolysis of glycerol over Pt/Nd2O3-WO3/ZrO2 catalysts for 1,3-propanediol
文章编号:
1671-7627(2013)01-0019-05
作者:
诸晓东陈长林
南京工业大学 化学化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
ZHU Xiaodong CHEN Changlin
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
关键词:
Nd2O3 ZrO2 WO3 Pt 甘油 13-丙二醇
Keywords:
neodymium oxide zirconia tungsten oxide platinum glycerol 13-propanediol
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2013.01.005
文献标志码:
A
摘要:
制备不同Nd2O3质量分数的2%Pt/Nd2O3-WO3/ZrO2催化剂。通过N2物理吸附,NH3程序升温脱附(NH3-TPD)、H2程序升温脱附(H2-TPD)、CO脉冲吸附等方法表征催化剂的物理化学性质。用固定床连续流动反应器考察催化剂对甘油氢解制1,3-丙二醇反应的催化性能。结果表明,引入Nd2O3提高了催化剂的H2吸附量,进而提高了催化剂的催化活性; 焙烧温度对催化剂性能有重要影响。在4 MPa、130 ℃、质量分数为60%甘油水溶液进料、液体体积空速(LHSV)0.25 h-1反应条件下,2%Pt/0.25NdWZ(700,450)催化剂催化甘油氢解反应,甘油转化率为75.2%,1,3-丙二醇产率达28.9%,产物中n(1,3-丙二醇)/n(1, 2-丙二醇)达到21.9。
Abstract:
A series of 2%Pt/Nd2O3-WO3/ZrO2 catalysts with different Nd2O3 contents were prepared. The physico-chemical properties of catalysts were characterized by the techniques of N2 physical adsorption, NH3 temperature-programmed desorption(NH3-TPD), H2 temperature-programmed desorption(H2-TPD)and CO-pulse adsorption. Hydrogenolysis of glycerol in aqueous medium over these catalysts was performed in a fixed-bed continuous-flow reactor. The results showed that the capacity of hydrogen adsorption and catalytic performance of the catalysts were dramatically improved by addition of Nd2O3. The calcination temperature had a great effect on the physico-chemical properties and the catalytic performances of the catalysts. Under the reaction conditions of 130 ℃, 4 MPa, 60%(mass ratio)glycerol aqueous solution as feed and liquid space velocity(LHSV)of 0.25 h-1, 75.2% conversion of glycerol, 28.9% yield of 1,3- propanediol, and 1,3-propanediol/1,2-propanediol mole ratio up to 21.9 were obtained over 2% Pt/0.25NdWZ(700,450)catalyst.

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备注/Memo

备注/Memo:
收稿日期:2012-05-17
基金项目:国家高技术研究发展计划(863计划)(2012AA03A606)
作者简介:诸晓东(1987—),男,江苏江阴人,硕士,主要研究方向为工业催化; 陈长林(联系人),教授,E-mail:clchen@njut.edu.cn..
更新日期/Last Update: 2013-01-20