1.
Pressure vessel stores pressurised product in it dependingon the requirements of processColumn normally has atmospheric pressure2.
Pressure vessel is designed to withstand circumferentialload,known as Hoope Stess, but column takes the axial load.3. column act as a force through one direction equal, pressurevessel act as a force all direction equal
4.
colum is using for seperation of gases or liquids .thatswhy we are using trays inside .vessel always using to storeor gas through demester pads.colum always higher thanvessel.colum actual a staic producer .vessel storespressorised product