Gas sorption system

A gas sorption system comprising

• a main sorption unit;
• a main process air circuit arranged to conduct a main process airflow through a main sorption rotor in the main sorption unit;
• a main regeneration air circuit arranged to conduct a main regeneration airflow through the main sorption rotor in the main sorption unit;
• a purge air circuit arranged to conduct a purge airflow through the main sorption rotor in the main sorption unit, the purge airflow being configured to flow through the main sorption rotor in the same direction as the main regeneration airflow;
• a pre-processing unit comprising a heat pump, which comprises an evaporator and a condenser, wherein the pre-processing unit is connected to the main regeneration air circuit upstream of the main sorption unit, the pre-processing unit being arranged to heat and/or to dehumidify the main regeneration airflow upstream of the main sorption unit;
• and
• an intermediate fluid circuit with a cooling fluid arranged to cool the main process air in a first cooler before inlet of the process air into the main sorption unit, the intermediate fluid circuit comprising a fluid pump and a fluid conduit arranged to conduct cooling fluid through the first cooler and through the evaporator of the heat pump,
• wherein the purge air circuit and the main regeneration air circuit are connected to the main process air circuit downstream of the main sorption unit, and the purge airflow and the main regeneration airflow are configured to be collected from the main process airflow in the main process air circuit, so that the purge airflow downstream of a main desiccant rotor is used as the main regeneration airflow,
• wherein the main regeneration circuit is connected to the condenser of the heat pump upstream of the main sorption unit.