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| 用Lewis酸或Brnsted酸催化剂和N2汽提法使木糖脱水为糠醛（英文） | |
| 引用本文： | Iker AGIRREZABAL-TELLERIA,Cristina GARCíA-SANCHO,Pedro MAIRELES-TORRES,Pedro Luis ARIAS. 用Lewis酸或Brnsted酸催化剂和N2汽提法使木糖脱水为糠醛（英文）[J]. 催化学报, 2013, 34(7): 1402-1406. DOI: 10.1016/S1872-2067(12)60599-3 |
| 作者姓名： | Iker AGIRREZABAL-TELLERIA Cristina GARCíA-SANCHO Pedro MAIRELES-TORRES Pedro Luis ARIAS |
| 作者单位： | a Department of Chemical and Environmental Engineering, Engineering School, University of the Basque Country (EHU/UPV), Alameda Urquijo s/n, 48013, Bilbao, Spain; b Department of Inorganic Chemistry, Cristallography and Mineralogy (Unit Associated to ICP-CSIC), Science Faculty, University of Málaga, Campus Teatinos s/n, 29071, Málaga, Spain |
| 基金项目： | supported by funds from the Spanish Ministerio de Economíay Competitividad(CTQ‐2012‐38204‐C03‐03 and ENE2009‐12743‐C04‐03);from the Gobierno Vasco(Programa de Formación de Personal Investigador del Departamento de Educación,Universidades e Investigación);the Junta de Andalucía(P09‐FQM‐5070) for financial support |
| 摘 要： | The activity of Lewis (Nb2O5) and Br nsted (Amberlyst 70) acid catalysts for the cyclodehydration of xylose to furfural was studied. The nature of the acidity resulted in significant changes in the reaction mechanism. Lewis acid sites promote the formation of xylulose, while Br nsted acid sites are required to further dehydrate the sugar to furfural. Amberlyst 70 in water/toluene at 175 ℃ showed lower activity but gave a higher furfural yield. Using N2 as the stripping agent considerably improved the furfural yield and product purity in the stripped stream. Catalyst stability was also studied. |
| 关 键 词： | Lewis acid Br nsted acid Reaction mechanism Xylose dehydration Furfural Nitrogen stripping |
| 收稿时间： | 2013-02-24 |
Dehydration of xylose to furfural using a Lewis or Brönsted acid catalyst and N2 stripping |
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| Iker AGIRREZABAL-TELLERIA,Cristina GARC,#,A-SANCHO,Pedro MAIRELES-TORRES,Pedro Luis ARIAS. Dehydration of xylose to furfural using a Lewis or Brönsted acid catalyst and N2 stripping[J]. Chinese Journal of Catalysis, 2013, 34(7): 1402-1406. DOI: 10.1016/S1872-2067(12)60599-3 | |
| Authors: | Iker AGIRREZABAL-TELLERIA Cristina GARC&# A-SANCHO Pedro MAIRELES-TORRES Pedro Luis ARIAS |
| Affiliation: | a Department of Chemical and Environmental Engineering, Engineering School, University of the Basque Country (EHU/UPV), Alameda Urquijo s/n, 48013, Bilbao, Spain; b Department of Inorganic Chemistry, Cristallography and Mineralogy (Unit Associated to ICP-CSIC), Science Faculty, University of Málaga, Campus Teatinos s/n, 29071, Málaga, Spain |
| Abstract: | The activity of Lewis (Nb2O5) and Brönsted (Amberlyst 70) acid catalysts for the cyclodehydration of xylose to furfural was studied. The nature of the acidity resulted in significant changes in the reaction mechanism. Lewis acid sites promote the formation of xylulose, while Brönsted acid sites are required to further dehydrate the sugar to furfural. Amberlyst 70 in water/toluene at 175 ℃ showed lower activity but gave a higher furfural yield. Using N2 as the stripping agent considerably improved the furfural yield and product purity in the stripped stream. Catalyst stability was also studied. |
| Keywords: | Lewis acid Brönsted acid Reaction mechanism Xylose dehydration Furfural Nitrogen stripping |
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