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化学工业与工程 2016, Vol. 33 Issue (2) :1-6    DOI: 10.13353/j.issn.1004.9533.20141021
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水热法合成SBA-15负载杂多酸催化纤维素水解加氢
吕结, 韩金玉, 王华, 谢献娜, 郑丹
天津大学化工学院, 绿色合成与转化教育部重点实验室, 天津 300072
Catalytic Conversion of Cellulose over SBA-15 Supported Heteropolyacids
Lv Jie, Han Jinyu, Wang Hua, Xie Xianna, Zheng Dan
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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摘要 

采用水热一步法在介孔SBA-15载体上负载杂多酸,并进一步负载金属Ru制备具有酸性和加氢性能的双功能催化剂。用BET、XRD、TEM、ICP、NH3-TPD对其结构性质进行表征。考察了反应时间和反应温度对纤维素催化反应的影响。在190 ℃、16 h,5 MPa H2的条件下,纤维素转化率达到55.2%,山梨醇的收率为36.8%。催化剂的循环使用表明杂多酸在载体上能够稳定存在,不易流失。制备的双功能催化剂具有很好的稳定性和催化活性。

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吕结
韩金玉
王华
谢献娜
郑丹
关键词纤维素   山梨醇   杂多酸   SBA-15     
Abstract

Bi-Functional catalysts with acidity and hydrogenation activity were prepared by loading heteropolyacids over SBA-15 through one-pot hydrothermal method and then supported Ru on HPA-SBA-15. The texture and properties of the Ru/HPA-SBA-15 were characterized by means of N2 physisorption, XRD, TEM, ICP, and NH3-TPD. The influences of reaction time and temperature on cellulose conversion were investigated. The results showed that a cellulose conversion of 55.2% and a sorbitol yield of 36.8% were obtained under the conditions of reaction time of 16 h, temperature of 190 ℃, and H2 pressure of 5 MPa. The recycle tests indicated that there was no significant loss of the catalytic activity after three times. It suggested that heteropolyacid supported over Ru/HPA-SBA-15 had good stability. The bi-functional catalyst prepared in this study has good catalytic activity and stability.

Keywordscellulose;   sorbitol;   heteropolyacid;   SBA-15     
Received 2014-03-07;
Fund:

国家自然科学基金(21076152,21276191);教育部博士点基金(2100032110018)。

Corresponding Authors: 王华,E-mail:tjuwanghua@tju.edu.cn。     Email: tjuwanghua@tju.edu.cn
About author: 王华(1973-),女,副教授,现从事纤维素转化利用方面的研究。
引用本文:   
吕结, 韩金玉, 王华, 谢献娜, 郑丹.水热法合成SBA-15负载杂多酸催化纤维素水解加氢[J].  化学工业与工程, 2016,33(2): 1-6
Lv Jie, Han Jinyu, Wang Hua, Xie Xianna, Zheng Dan.Catalytic Conversion of Cellulose over SBA-15 Supported Heteropolyacids[J].  Chemcial Industry and Engineering, 2016,33(2): 1-6
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