APPLIANCE FOR CAPTURING VOCS, APPLICABLE TO HYDROCARBON STORAGE TANKS, AND CAPTURING METHOD

摘要

The invention relates to a portable appliance that uses the cold of liquid nitrogen to obtain the condensation of volatile organic compounds (VOCs), such as petrol vapours, acetone, alcohols etc. Said appliance basically consists of a condenser inside which an inner space is defined, wherein such volatile organic compounds condense, either by direct contact or by indirect contact as a result of the cooling generated in said inner space by the liquid nitrogen, benefiting from the cold of the outflow current of the condenser in order to previously cool the contaminated air current that contains the volatile organic compounds before entering the condenser. The appliance according to the invention has the advantage of being easily transportable, occupying a reduced space.