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本发明涉及利用C4原料分离装置回收乙酸仲丁酯制备装置中的潜热的方法,将共沸精馏塔和/或精制塔塔顶气相物料通入管壳式换热设备,优选筒体下段较细和筒体上段较粗的立式逆流冷凝蒸发器
The invention relates to a method for recovering the latent heat in the sec-butyl acetate preparation device by using a C4 raw material separation device, which leads the azeotropic distillation tower and / or the top gas phase of the refining tower into the shell and tube heat exchange equipment, And the upper section of the crude tube vertical countercurrent condensing evaporator