Study on Preparation of Xylitol from Xylose Second Steam
In this paper,the xylitol production process was improved.The xylitol secondary steam liquid was purified by SSMB chromatography device.The arabinose in the xylose second vapor was removed.The purity and yield of xylose were improved,and the hydrogenation efficiency was also improved.The purity and yield of xylitol were improved,and the taste of xylitol was improved.Experimental results show that Chromatographic separation parameters of xylose secondary steam were:feed concentration 42%,feed volume 269 g/h,water inflow 435 g/h,and circulation volume 1 120 mL.Under these conditions,the purity of xylose was 89.783%,the content of arabinose was 1.348%,and the yield was 97.21%.