Drying and gas or vapor contact with solids – Process – Gas or vapor contact with treated material
Reexamination Certificate
2007-03-06
2007-03-06
Gravini, S. (Department: 3749)
Drying and gas or vapor contact with solids
Process
Gas or vapor contact with treated material
C034S075000, C034S079000, C095S123000, C096S127000, C062S196300
Reexamination Certificate
active
11111563
ABSTRACT:
A drying device for drying a gas comprises parallel cooling branches, at least one of which is in its active state at any given time. A gas-coolant heat exchanger arranged in each of the cooling branches has a first channel through which the gas to be dried flows in the active state of this cooling branch and a second channel which, in the active state of this cooling branch, forms an evaporator for a coolant circulating in at least one coolant circuit. The drying device further comprises an ambient-air input line, an ambient-air output line and an ambient-air conveyor. In the passive state of a respective cooling branch, the ambient-air input line and the ambient-air output line are connected, at least for a time, with this cooling branch by the switching device and the ambient-air conveyor conveys ambient air through the first channel of the gas-coolant heat exchanger arranged in this cooling branch.
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Gravini S.
Reed Smith LLP
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