Process for concentrating a cold product and for preheating a ci

Details Process for concentrating a cold product and for preheating a ci Process for concentrating a cold product and for preheating a ci

1981-05-28

1985-01-22

Yeung, George

Food or edible material: processes, compositions, and products

Processes

Separating a starting material into plural different...

159 24B, A23C 100, B01D 118

Patent

active

044952120

ABSTRACT:
A process for concentrating a cold liquid dairy product and for preheating a circulating fluid, which comprises the steps of submitting the liquid dairy product to a multi-stage evaporation by supplying a first evaporation stage with heating vapor as a source of heat for evaporation of the liquid dairy product in the first evaporation stage to convert the heating vapor to condensate and produce evaporation vapor from the liquid dairy product; supplying the second evaporation stage with evaporation vapor produced in the first evaporation stage so that the first evaporation stage supplies a source of heat for evaporation of the liquid dairy product in the second evaporation stage to convert the evaporation vapor supply in the second evaporation stage to condensate and produce evaporation vapor from the liquid dairy product; repeating the steps of submitting and supplying up to and including the last evaporation stage; preheating the circulating fluid by a one-step heat exchange with the evaporation vapor, the condensates or the mixture thereof, withdrawn from at least one evaporation stage; and preheating the cold liquid dairy product to be concentrated by heat exchange with at least a portion of the condensates resulting from the vapor, the condensates or the mixture thereof after their heat exchange with the circulating fluid.

REFERENCES:
patent: 3065076 (1962-11-01), Wenner et al.
patent: 3947327 (1976-03-01), Greenfield et al.
patent: 4239588 (1980-12-01), Engelhardt
patent: 4265701 (1981-05-01), Lankenau
patent: 4303468 (1981-12-01), Laguilharre et al.

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