1北京理工大学珠海学院 2020 届本科生毕业设计以甲醇和甲醛水溶液为原料生产甲缩醛工厂设计以甲醇和甲醛水溶液为原料生产甲缩醛工厂设计摘 要甲缩醛，又称为二甲氧基甲烷（DMM），是重要的化工中间体，也是一种非常好的环保型溶剂，近些年来又被人们作为燃料添加剂，其应用前景更受关注。甲醇的下游产品之一是甲缩醛。目前工业上常用的方法是以甲醇甲醛为原料。近年来，以甲醇为原料的甲缩醛一步法生产技术的研究与开发取得了很大进展。DMM 具有低沸点、良好的溶解性和良好的水溶性等优良的理化性能。可广泛应用于各个领域。同时，DMM 具有较强的脱脂能力和良好的挥发性，也可作为 F113 和 F11 的替代品，氯化溶剂更是作为环保产品，可以当成氟利昂的理想替代品。由于其优异的性能和广泛的应用，近十年来，DMM 合成技术的研究不断深入。关键词：甲缩醛（DMM）；甲醇；甲醛；催化精馏；设计2北京理工大学珠海学院 2020 届本科生毕业设计3北京理工大学珠海学院 2020 届本科生毕业设计Plant design of producing methylal from methanol and formaldehyde aqueous solutionAbstractMethylacetal, also known as Dimethoxymethane (DMM), is an excellent environment-friendly solvent and an important chemical intermediate. As a fuel additive, it has attracted more and more attention in recent years. Methylal is a downstream product of methanol. At present, methanol and formaldehyde are the common production methods in industry. In recent years, the research and development of one-step methylal production technology with single methanol as raw material has made great progress. Methylacetal (DMM) is one of the most important downstream products of methanol, which has excellent physical and chemical properties, such as good solubility, low boiling point, and good water solubility. DMM can be widely used in cosmetics, drugs, household products, automotive industry products, pesticides, leather polish, cleaners, rubber industry, paints and inks, and it has good degreasing properties As a cleaner, it can al...
