Heat recovery from moist gas, used for e.g. district heating, by contacting with hygroscopic medium at high temperature, condensing and contacting with medium from regeneration step

摘要

The moist gas (2) is contacted with a hygroscopic medium at a temperature greater than the dew point during a regeneration step (3), then it is cooled to below its dew point during a condensation step (11) and then it is contacted with the hygroscopic medium from the regeneration step during a moisture removal step. An independent claim is also included for the heat recovery and pumping process apparatus comprising a regeneration device for concentrating the hygroscopic medium using the moist gas, a condensation device with heat exchangers (14) for cooling the gas and a moisture removal device with heat exchangers containing hygroscopic medium from the regeneration step.