化工学报2015，Vol.66Issue(9)：3529-3534,6.DOI:10.11949/j.issn.0438-1157.20150970
电渗析技术在木糖醇酸水解法制备中的应用
Electrodialysis for production of xylitol from acid hydrolysis method
摘要
Abstract
Xylitol is an important sugar alcohol widely used as sweetener. A processing route to remove the residual acid from xylose hydrolyzed solution in industrial production of xylitol is the acid hydrolysis method. Conventional neutralization method with lime has many drawbacks such as high energy consumption, large consumption of chemicals and environmental pollution. To achieve a clean production of xylitol, a self-resemble electrodialysis stack was used for selective removal of residue acid. The influences of current density on the removal ratio of residue acid and recovery ratio of xylose were investigated. The residue acid removal rate was higher than 99% and xylose recovery rate reached 84.9% at a current density of 30 mA·cm?2. The total energy consumption for xylose hydrolyzed solution was 179 kW·h·t?1 and the deacidification process cost was estimated to be 139 ￥·t?1, indicating economic and ecological advantages of this technology. Thus the electrodialysis is a very promising technology for production of xylitol.关键词
膜/分离/脱盐/电渗析/木糖醇Key words
membrane/separation/desalination/electrodialysis/xylitol分类
化学化工引用本文复制引用
汪耀明,潘升东,徐铜文..电渗析技术在木糖醇酸水解法制备中的应用[J].化工学报,2015,66(9):3529-3534,6.基金项目
国家自然科学基金项目(21276247,21476220).supported by the National Natural Science Foundation of China (21276247, 21476220). （21276247,21476220）
