Dehydration apparatus and process of dehydration

Details Dehydration apparatus and process of dehydration Dehydration apparatus and process of dehydration

1990-08-01

1992-06-09

Yeung, James C.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 32, 34 46, 34 77, 34 86, F26B 300

Patent

active

051195712

ABSTRACT:
The present invention provides an apparatus particularly useful for the dehydration of organic materials, and a process of dehydration using the apparatus of the invention. The apparatus includes a drying enclosure to receive and contain materials to be dehydrated, a cooling section with a first stage cooling coil and a second stage cooling coil to remove moisture from a drying fluid by condensation, a heating section with a first stage heating source and a second stage heating source controllable for selecting the amount of heat output therefrom, to raise the temperature and lower the relative humidity of the drying fluid, and a drying fluid handling system to convey the drying fluid in a closed loop through the sections of the apparatus. The process of the invention includes the general steps of heating a drying fluid, passing the drying fluid over the material to be dried, cooling the drying fluid to condense moisture, heating the drying fluid to elevate its temperature and reduce its relative humidity, and reintroducing the heated drying fluid to the process loop to be recirculated though the apparatus until the desired degree of dehydration has been achieved.

REFERENCES:
patent: 3831294 (1974-08-01), Freze
patent: 3931683 (1976-01-01), Crites et al.
patent: 4241515 (1980-12-01), Wochnowski et al.
patent: 4250629 (1981-02-01), Lewis
patent: 4447965 (1984-05-01), Bray
patent: 4469720 (1984-09-01), Morris
patent: 4644666 (1987-02-01), Eberle et al.

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