Patent ID: 6726750
Filing Date: 2004-04-27
Classification: B01D,Y02A

Abstract:
An apparatus for removing volatile organic compounds (VOC) from VOC sources comprising:a gas circuit comprising a plurality of gas streams flowing away from and back to a plurality of remotely located VOC sources, each gas stream being associated with one of a plurality of absorbers, each absorber located near and communicating with both one of the gas streams and the scrubbing liquid circuit, the gas streams being VOC contaminated gas streams after the VOC sources and clean gas streams before the VOC sources; a scrubbing liquid flowing in a scrubbing liquid circuit; an absorber having a scrubbing liquid inlet, the absorber communicating with both the gas circuit and the scrubbing liquid circuit and the absorber associating VOC from the VOC contaminated gas streams with the scrubbing liquid; and a heat exchanger in fluid communication with the scrubbing liquid flowing in the scrubbing liquid circuit at a first point away from the scrubbing liquid inlet, the heat exchanger also in fluid communication with the scrubbing liquid circuit at a second point prior to the scrubbing liquid inlet to control the temperature of the scrubbing liquid immediately prior to the absorber, whereby the scrubbing liquid in the absorber conditions the gas stream to a temperature level appropriate for use as the gas stream is recycled to at least one of the VOC sources.