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[1]宫能锋,陈长林.介孔钨铝复合氧化物载铂催化剂催化甘油氢解反应[J].南京工业大学学报(自然科学版),2018,40(01):28-33.[doi:10.3969/j.issn.1671-7627.2018.01.005]
 GONG Nengfeng,CHEN Changlin.Hydrogenolysis of glycerol over mesoporous tungsten-aluminum mixed oxides supported platinum catalyst[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(01):28-33.[doi:10.3969/j.issn.1671-7627.2018.01.005]
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介孔钨铝复合氧化物载铂催化剂催化甘油氢解反应()
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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:
40
期数:
2018年01期
页码:
28-33
栏目:
出版日期:
2018-01-20

文章信息/Info

Title:
Hydrogenolysis of glycerol over mesoporous tungsten-aluminum mixed oxides supported platinum catalyst
文章编号:
1671-7627(2018)01-0028-06
作者:
宫能锋陈长林
南京工业大学 化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
GONG NengfengCHEN Changlin
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
介孔钨铝复合氧化物 甘油 13-丙二醇 氢解 稳定性
Keywords:
mesoporous tungsten-aluminum mixed oxides platinum glycerol 13-propanediol hydrogenolysis stability
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2018.01.005
文献标志码:
A
摘要:
以Al(OH)3为铝源,用分步浸渍-焙烧法制备介孔钨铝复合氧化物负载铂催化剂。在连续流动固定床反应器中,考察催化剂催化甘油氢解制备1,3-丙二醇(1,3-PDO)的催化性能与稳定性。通过N2物理吸附、X线衍射(XRD)方法表征反应前后催化剂的结构。结果表明:介孔钨铝复合氧化物负载铂催化剂的平均孔径为16 nm,催化剂在甘油氢解反应中呈现良好的催化活性。催化剂焙烧温度、反应温度、甘油质量空速(WHSV)及甘油水溶液浓度等因素变化对1,3-丙二醇产率及甘油转化率有较大影响。在160 ℃、4 MPa、60%甘油水溶液进料、甘油质量空速为0.25 h-1、H2与甘油摩尔比为100:1的条件下,介孔钨铝复合氧化物负载铂催化剂催化甘油氢解反应,甘油转化率为54.1%,1,3-丙二醇的产率与选择性分别为26.2%与50.3%。催化剂长期稳定性良好。
Abstract:
The catalysts of platinum supported mesoporous tungsten-aluminum mixed oxides which used Al(OH)3 as aluminum source precursor were prepared by the method of stepwise impregnation-calcination.The catalytic performance and stability of the catalysts which catalyze hydrogenolysis of glycerol to 1,3-propanediol(1,3-PDO)were performed in a continuous flow fixed-bed reactor.The physico-chemical properties of the catalysts were characterized by the techniques of N2 physical adsorption,X-ray diffraction(XRD).Results showed that the catalysts had stable mesoporous structure and exhibited excellent catalytic activity in the reaction of hydrogenolysis of glycerol.The catalyst calcination temperature,reaction temperature,weight hourly space velocity(WHSV)of glycerol and glycerol concentration had a impact on the yield of 1,3-propanediol and glycerol conversion.Under the conditions of 160 ℃,4 MPa,60% glycerol aqueous solution with WHSV of 0.25 h-1,n(H2)/n(glycerol)=100:1,hydrogenolysis conversion on the mesoporous catalyst was up to 54.1%,and 1,3-propanediol yield and selectivity were 26.2% and 50.3%,respectively.The mesoporous catalyst exhibited excellent long term stability and durability.

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备注/Memo

备注/Memo:
收稿日期:2016-05-13
基金项目:江苏省产学研前瞻性联合研究项目(BY2015005-08)
作者简介:宫能锋(1988—),男,安徽巢湖人,硕士,主要研究方向为工业催化; 陈长林(联系人),教授,E-mail:clchen@njtech.edu.cn.
引用本文:宫能锋,陈长林.介孔钨铝复合氧化物载铂催化剂催化甘油氢解反应[J].南京工业大学学报(自然科学版),2018,40(1):28-33..
更新日期/Last Update: 2018-01-18