RMV再沸器装置用于乙酸乙酯蒸发

Application of RMV reboiler for ethyl acetate evaporation

将自行开发的RMV再沸器装置[1] ,用于从含有热敏性高沸点溶质的溶液中蒸发乙酸乙酯。由于装置结构的独特性 ,使得在生产工艺上实现了连续操作 ,与原设备间歇性操作的工艺相比 ,不但加热时间大为缩短 ,而且在加热面积仅增加 2倍的情况下 ,生产能力从 2 .5t/h增加至 16t/h ,溶剂回收率从 96 %增加至 98% ,单位蒸汽耗量下降了 33.3%。

A novel reboiler with mass transfer function under high vacuum ( RMV reboiler for short ), which was developed by authors, was used for vaporizing ethyl acetate from solution with thermo-sensitive and high boiling point component. Because of the unique characters of RMV reboiler, this technology shows advantages as following: First of all, it realized continous process and largely reduced heating time. Furthermore, the processing capacity enhanced from 2.5t/h to 16t/h though the heating area increased only 3 times as that of original, and the ethyl acetate recovery enhanced from 96% to 98%. At the same time, the steam consumption was lowered 33.3% for per unit input.