Method for gas-phase epoxidation reaction of olefin and hydroperoxide

The invention relates to a method for a gas-phase epoxidation reaction of olefin and hydroperoxide. The method comprises the following steps: a, proportioning raw materials; b, preheating and gasifying olefin; c, spraying a hydroperoxide raw material to the gasified gas-phase olefin to form a gas-liquid mixture flow; d, increasing the temperature of the gas-liquid mixture flow, and completely gasifying the gas-liquid mixture flow to form a gas-phase epoxidation reaction flow; e, carrying out an epoxidation reaction in the presence of an epoxidation catalyst to form an epoxide discharged material; and transferring heat released by the epoxidation reaction; and f, carrying out heat exchange on the epoxide discharge material and the gas-liquid mixture flow in the step d, and then leaving theepoxidation reaction system to carry out a subsequent process to obtain epoxypropane. According to the method, a set of rapid and high-temperature reaction circulation process is formed, the decomposition amount of the raw ma