The high temperature oil-oil heat exchangers used in vegetabel oils deodorization section were compared, and the characteristics of the oil-oil heat exchangers were analyzed. Considering different process requirements, investment cost, and the quality of deodorized oil, the falling-film heat exchanger had the widest application range. Vacuum heat recovery heat exchanger was suitable for the heat exchange of soybean oil, rapeseed oil, etc. Compabloc plate heat exchanger was suitable for the heat exchange of corn oil and sunflower seed oil. |