Gas filtration system recovering volatile organic compounds includes granular filter with refrigerator and condenser for cold gas

摘要

A gas filtration system recovering volatile organic compounds has a granular filter (3) cooled by an evaporator (6) linked to a refrigerator. An Independent claim is also included for a process using the system, employing a helicoidal condenser (11) for the cold outlet gases free of particles. The multi-stage refrigerator enables temperatures of -100 degrees C to be attained. The caned gas leaves via a pipe (15).