论文部分内容阅读
本发明是化工领域的一种由甲醇脱水制取二甲醚的方法,其工艺流程包括:(1)将外界的原料甲醇送入甲醇缓冲罐与来自甲醇精馏塔塔顶的甲醇混合成甲醇原料;(2)甲醇原料经甲醇预热器预热后进入甲醇汽化罐汽化;(3)汽化后的甲醇蒸汽经热反应进入反应器;反应后出来的反应气经进料出料换热器、甲醇换热器、甲醇塔气体再沸器、二甲醚塔进料冷却器
The present invention is a method for the dehydration of methanol to dimethyl ether in the chemical industry. The process includes the following steps: (1) feeding raw material methanol into a methanol buffer tank and methanol from the top of a methanol distillation column into methanol Raw material; (2) the methanol feedstock is preheated by a methanol preheater and then enters a methanol vaporization tank to be vaporized; (3) the vaporized methanol vapor is subjected to a thermal reaction and enters the reactor; the reaction gas coming out after the reaction is discharged through a feed-discharge heat exchanger , Methanol heat exchanger, methanol tower gas reboiler, DME tower feed cooler