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.