秸秆糖在高压氢化裂解过程中，反应产生丙二醇、乙二醇、丁二醇、丙三醇等多元醇[1]，反应液中含有有机盐类，对分离单一的二元醇影响较大，后期重组分含量多，影响精馏分离操作，通过电渗析技术，能够有效的脱除多元醇反应液中的盐类，该实验通过化工分离专用离子交换膜的电渗析技术对多元醇反应液进行脱盐处理，确定了最佳的实验操作参数。实验结果表明，电渗析法对脱除生物多元醇反应液中的盐类是可行的，脱盐效果达到95％，多元醇收率达到94％。%Straw sugar pressure hydrocracking process , the reaction of propylene glycol , ethylene glycol , butylene glycol, polyhydric alcohols such as glycerin , organic salts contained in the reaction solution , the separated single diol greater impact , heavy post content and affect operation of distillation separation by electrodialysis , the polyol can effectively remove salts in the reaction solution , the experiment exchanged membrane electrodialysis polyol reaction solution was desalted by ion chemical separation professional , and the optimum operating parameters of the experiment were determined.Experimental results showed that the removal of biological electrodialysis polyhydric alcohol solution of salts was possible , desalting effect reached to 95%, and yield of 96%polyol.
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