以甲醇和甲醛水溶液为原料生产甲缩醛工厂设计

Plant design of producing methylal from methanol andformaldehyde aqueous solutionAbstractMethylacetal,also known as Dimethoxymethane (DMM),is an excellentenvironment-friendly solvent and an important chemical intermediate.As a fuel additive,ithas attracted more and more attention in recent years.Methylal is a downstream product ofmethanol.At present,methanol and formaldehyde are the common production methods inindustry.In recent years,the research and development of one-step methylal productiontechnology with single methanol as raw material has made great progress.Methylacetal(DMM)is one of the most important downstream products of methanol,which has excellentphysical and chemical properties,such as good solubility,low boiling point,and good watersolubility.DMM can be widely used in cosmetics,drugs,household products,automotiveindustry products,pesticides,leather polish,cleaners,rubber industry,paints and inks,and ithas good degreasing properties As a cleaner,it can also replace F11,F113 and chlorinatedsolvent.It is an ideal environmental protection product to replace freon.Because of its wideapplication and excellent performance,the research on its synthesis technology has beencarried out continuously in the past decade.Keywords:methylal;methanol;formaldehyde;catalytic distillation;design2