Method and device for producing isopropenyl acetate through continuous absorption esterification

The invention discloses a method and a device for producing isopropenyl acetate through continuous absorption esterification, a plurality of stages of esterification kettles are arranged, the first stage of esterification kettle is connected with a ketene, acetone and catalyst material conveying pipeline, the second stage of esterification kettle and the subsequent stages of esterification kettle are also connected into the ketene conveying pipeline, and after the materials in the esterification kettles react with the ketene, due to reaction heat release, the reaction temperature is reduced; a condenser is arranged at the outlet of each stage of esterification kettle, a volatile material is cooled and then flows back to the esterification kettle of the stage, and isopropenyl acetate is produced through continuous absorption esterification by controlling the feeding proportion of acetone, ketene and a catalyst and controlling the ketene feeding amount of each stage of esterification kettle; according to the in