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Abstract

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.

Additional information

Authors: TROMMELEN A M B, Lijmfabriek Trobas BV, Dongen (NL);SCHELLEKENS A J M, Lijmfabriek Trobas BV, Dongen (NL)
Bibliographic Reference: EUR 12108 EN (1989) FS, 23 pp., ECU 5
Availability: (2)
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