杂质对Ru/AC催化秸秆水解液加氢反应的抑制作用

侯莲霞; 任鑫; 周静红; 周兴贵

doi:10.11949/0438-1157.20190703

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杂质对Ru/AC催化秸秆水解液加氢反应的抑制作用

催化、动力学与反应器 | 更新时间：2026-07-24

- 杂质对Ru/AC催化秸秆水解液加氢反应的抑制作用
- Inhibition effect of impurities on hydrogenation of corn stover hydrolysate
- 化工学报 2020年71卷第2期页码：633-641
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室，上海 200237
- 作者简介：
  
  侯莲霞（1992—），女，硕士研究生，958570030@qq.com
  周静红（1971—），女，博士，教授，jhzhou@ecust.edu.cn
- 基金信息：
  
  国家重点研发计划(2018YFB0604704)
- DOI：10.11949/0438-1157.20190703
  中图分类号： TQ 35
- 收稿：2019-06-21，
  
  修回：2019-08-18，
  
  网络首发：2020-08-14，
  
  纸质出版：2020-02-05
- 稿件说明：
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侯莲霞, 任鑫, 周静红, 周兴贵. 杂质对Ru/AC催化秸秆水解液加氢反应的抑制作用[J]. 化工学报, 2020, 71(2): 633-641

HOU Lianxia, REN Xin, ZHOU Jinghong, ZHOU Xinggui. Inhibition effect of impurities on hydrogenation of corn stover hydrolysate[J]. CIESC Journal, 2020, 71(2): 633-641
侯莲霞, 任鑫, 周静红, 周兴贵. 杂质对Ru/AC催化秸秆水解液加氢反应的抑制作用[J]. 化工学报, 2020, 71(2): 633-641 DOI： 10.11949/0438-1157.20190703.

HOU Lianxia, REN Xin, ZHOU Jinghong, ZHOU Xinggui. Inhibition effect of impurities on hydrogenation of corn stover hydrolysate[J]. CIESC Journal, 2020, 71(2): 633-641 DOI： 10.11949/0438-1157.20190703.

摘要

采用Ru/AC催化主要成分为葡萄糖、木糖的秸秆水解液加氢，探究了水解液中各杂质对加氢反应性能的影响，通过N

物理吸附、CO化学吸附、热重分析、场发射扫描电镜、热解气质联用等分析手段对反应后失活催化剂进行了系统表征。结果表明：水解液中可能存在的木质素、纤维素酶、无机盐、呋喃类衍生物、有机弱酸、芳香族化合物等杂质中，木质素和纤维素酶对加氢反应具有很强抑制作用，其余杂质仅在溶液中总杂质含量较高时才表现出明显的抑制作用；木质素和纤维素酶阻碍加氢反应的主要原因是其能够附着于催化剂上，堵塞催化剂孔道，并覆盖活性位，导致催化剂失活。

Abstract

Ru/AC was used to catalyze the hydrogenation of corm stover with main components of glucose and xylose. The effect of various impurities in the hydrolysate on the catalytic pe

rformance was also investigated. The physiochemical properties of deactivated catalysts were extensively characterized by the techniques of N

physisorption

CO chemisorption

thermogravimetric analysis

field emission scanning electron microscope and pyrolysis-gas chromatography/mass spectrometry. Results demonstrated that lignin and cellulose

among the impurities existed in the hydrolysate

significantly inhibited the hydrogenation while the other impurities such as inorganic salts

furan derivatives

organic acids and aromatic compounds showed obvious inhibitory effect only when high content impurities existed in solution. In addition

the deactivation of Ru/AC catalysts was mainly caused by the deposited impurities such as lignin and cellulase on the catalyst surface

which blocked channels in catalyst particles and covered the active sites

thus resulting in catalyst deactivation.

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references

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