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[1]康伟杰,陈长林.磷酸盐稳定钨锆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(02):7-13.[doi:10.3969/j.issn.1671-7627.2018.02.002]
 KANG Weijie,CHEN Changlin.Hydrogenolysis of glycerol over phosphated tungsten-zirconium mixed oxides catalyst with supported platinum[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(02):7-13.[doi:10.3969/j.issn.1671-7627.2018.02.002]
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磷酸盐稳定钨锆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02期
页码:
7-13
栏目:
出版日期:
2018-03-20

文章信息/Info

Title:
Hydrogenolysis of glycerol over phosphated tungsten-zirconium mixed oxides catalyst with supported platinum
文章编号:
1671-7627(2018)02-0007-07
作者:
康伟杰陈长林
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):
KANG WeijieCHEN Changlin
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
甘油 13-丙二醇 加氢 钨锆复合氧化物 磷酸盐 稳定性
Keywords:
glycerol 13-propanediol hydrogenation tungsten and zirconium mixed oxides phosphated stability
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2018.02.002
文献标志码:
A
摘要:
用分步浸渍-焙烧法制备了不同含量磷酸盐稳定的钨锆复合氧化物载铂催化剂(Pt/phosphated WO3/ZrO2)。采用NH3程序升温脱附(NH3-TPD)、X线衍射(XRD)、N2物理吸附-脱附、H2程序升温还原(H2-TPR)和H2脉冲吸附等技术对催化剂进行了表征。用固定床反应器考察了催化剂催化甘油加氢制1,3-丙二醇的反应性能。结果表明,随着PO3-4含量增加,Pt/phosphate WO3/ZrO2催化剂比表面积呈先增大后减小的趋势,PO3-4质量分数0.8%的Pt/0.8phosphated WO3/ZrO2催化剂比表面积达到最大值108 m2/g。适量引入PO3-4可增大催化剂总酸量,增强催化剂金属还原性,提高了催化剂H2吸附量,Pt/0.8phosphated WO3/ZrO2催化剂H2吸附量达到最大值110.7 μmol/g。Pt/0.8phosphated WO3/ZrO2催化剂水热处理和反应前后比表面积基本没有变化,反应前后催化剂H2吸附量基本不变,Pt/phosphate WO3/ZrO2催化甘油加氢稳定性较Pt/WO3/ZrO2催化剂显著提高。
Abstract:
A series of Pt/phosphated WO3/ZrO2 catalysts with different PO3-4 contents were prepared via the method of stepwise impregnation-calcinations.The physico-chemical properties of the catalysts were characterized by various techniques such as NH3 temperature programmed desorption(NH3-TPD),X-ray diffraction(XRD),N2 physical adsorption-desorption(BET),H2 temperature programmed reduction(H2-TPR)and H2 pulse adsorption,and the hydrothermal stability of WO3/ZrO2,phosphated WO3/ZrO2 were also investigated.The performance of glycerol hydrogenation to 1,3-propanediol over the prepared catalysts was studied in a fixed-bed continuous-flow reactor.Results showed that the BET surface area of the catalyst increased with phosphate content increasing and reached 108 m2/g when phosphate content was about 0.8%.Furthermore,the acidity of the samples,the platinum metallicity on the catalyst were enhanced and the catalyst H2 adsorption improved with H2 adsorption of 110.7 μmol/g at 0.8% phosphate content.The BET surface area and the H2 uptakes remained unchange with the addition of phosphate after the reaction.The activity of Pt/phosphated WO3/ZrO2 was much stable than that of Pt/WO3/ZrO2 for the glycerol hydrogenation.

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备注/Memo

备注/Memo:
收稿日期:2016-05-16
基金项目:江苏省产学研前瞻性研究项目(BY2015005-08)
作者简介:康伟杰(1989—),男,安徽阜阳人,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:康伟杰,陈长林.磷酸盐稳定钨锆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(2):7-13..
更新日期/Last Update: 2018-03-30