Concentration of technical gelatine by use of a three-stage falling film evaporator with mechanical vapour recompression
This report deals with the application of the technology of Mechanical Vapour Recompression in the evaporation process within the technical gelatine industry. In the production process of technical gelatine a clarified solution of 5% protein in water, with a temperature of approximately 85 C must be concentrated to about 35-40% dry matter. For that purpose multiple-stage falling film evaporators are frequently applied, where the water is eliminated from the solution under reduced pressure. Despite serious start-up problems, it appears that concentration by an evaporator equipped with mechanical vapour recompression is technically applicable in this branch of industry. It is economically viable and proven to be a reliable technology. An energy saving of more than 90% in comparison with a conventional 3-stage evaporator with thermal vapour recompression has been achieved.
Bibliographic Reference: EUR 12108 EN (1989) FS, 23 pp., ECU 5
Record Number: 198910523 / Last updated on: 1994-12-01
Original language: en
Available languages: en