SYSTEM AND PROCESS FOR PREPARING PROPYLENE OXIDE BASED ON MICRO-INTERFACE ENHANCED PROPYLENE EPOXIDATION

摘要

A system and a process for preparing propylene oxide based on micro-interface enhanced propylene epoxidation, comprising: a reactor, a micro-interface generator, and a reflux pipe. By means of breaking propylene gas to form micron-scale micron-sized bubbles and mixing the micron-sized bubbles with feed liquid to form a gas-liquid emulsion, the area of the phase boundary between the gas and liquid phases is increased, and the effect of enhancing mass transfer within a lower preset operating condition range is achieved; in addition, the micron-sized bubbles can fully mix with the feed liquid to form a gas-liquid emulsion, and fully mixing the gas and liquid phases can ensure that the oxygen source solution in the system can come into full contact with the propylene gas, thereby preventing the generation of by-products, and further increasing the reaction efficiency of the system.