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生物柴油副产甘油的产量快速攀升、成本大幅下降,给环氧氯丙烷的生产工艺带来了巨大改变。由于成本低廉,近年来新建的大型环氧氯丙烷装置绝大多数都采用甘油作为原料,甘油法环氧氯丙烷工艺正在成为市场主流。环氧氯丙烷工业生产的经典方法为丙烯高温氯化法。该方法具有操作稳定、自控水平高等优点,但存在收率低、能耗高、“三废”多等缺点。而甘油法环氧氯丙烷生产技术早在多年前就已得到成功应用,但由于甘油资源紧张、价格高,工业界后
Biodiesel production of glycerol by-product of rapid rise, the cost dropped significantly, to the epichlorohydrin production process has brought a huge change. Due to their low cost, the vast majority of large-scale epichlorohydrin units newly built in recent years have adopted glycerin as the raw material, and the glycerol epichlorohydrin process is becoming the mainstream of the market. Epichlorohydrin industrial production of the classic method of propylene high temperature chlorination. The method has the advantages of stable operation and high self-control level, but has the disadvantages of low yield, high energy consumption and more waste than waste. The glycerol epichlorohydrin production technology as early as many years ago has been successfully applied, but due to the shortage of glycerol resources, high prices, after the industrial