Patent ID: 6701728
Filing Date: 2004-03-09
Classification: C03B

Abstract:
A method of recovering and recycling a coolant gas containing contaminants, the method comprising:providing a heat exchanger and an analyzer, the heat exchanger and the analyzer in operational association; recovering the coolant gas containing contaminants from the heat exchanger; delivering an analysis portion of the recovered coolant gas to the analyzer; analyzing the analysis portion of the recovered coolant gas with the analyzer to determine a condition of the recovered coolant gas; blending, based on the condition, a reclaimed portion of the recovered coolant gas and a virgin coolant gas to produce a gaseous coolant blend having a predetermined contaminant concentration; and introducing the gaseous coolant blend into the heat exchanger such that at least a portion of the recovered coolant gas is recycled; and, maintaining a flow of a portion of said recovered coolant gas through a by-pass section while simultaneously decreasing the flow of said recovered portion of coolant gas through said by-pass section and increasing the flow of said reclaimed coolant gas through said blending section, thereby reducing lag time.