期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 16, 页码 7478-7485出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.05.015
关键词
Furfural; Process optimization; Xylose dehydration; Amberlyst; Stripping
资金
- Ministerio de Ciencia e Innovacion [ENE2009-12743-004-04]
- Gobierno Vasco (Programa de Formacion de Personal Investigador del Departamento de Educacion, Universidades e Investigacion)
The aim of this work deals with the development of new approaches to the production of furfural from xylose. It combines relatively cheap heterogeneous catalysts (Amberlyst 70) with simultaneous furfural stripping using nitrogen under semi-batch conditions. Nitrogen, compared to steam, does not dilute the vapor phase stream when condensed. This system allowed stripping 65% of the furfural converted from xylose and almost 100% of selectivity in the condensate. Moreover, high initial xylose loadings led to the formation of two water-furfural phases, which could reduce further purification costs. Constant liquid-vapor equilibrium along stripping could be maintained for different xylose loadings. The modeling of the experimental data was carried out in order to obtain a liquid-vapor mass-transfer coefficient. This value could be used for future studies under steady-state continuous conditions in similar reaction-systems. (C) 2011 Elsevier Ltd. All rights reserved.
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