Method and facility for drying by means of hydrothermal carbonization and filtering
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United States of America Patent
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Jul 9, 2019
Grant Date -
Jun 28, 2018
app pub date -
Apr 18, 2016
filing date -
Apr 20, 2015
priority date (Note) -
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Abstract
The present invention relates to the field of heat treatment of a product to be dehydrated, such as sludge from a waste water treatment process. The present invention relates more particularly to a method and to a facility for drying such a product, making it possible to implement a hydrothermal carbonization operation on reactor 1 followed by a filtering and drying operation, preferably on a heating filter press 6. In order to dry said product in the heating filter press 6, a heat-transfer fluid from a heat exchanger 2 is made to flow in said heating filter press. The heat exchanger 2 is arranged so as to transfer, to the heat-transfer fluid, at least some of the heat contained in the product to be dehydrated that is output from the reactor 1.
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