Patent ID: 7806964
Filing Date: 2010-10-05
Classification: B01D,C12M,Y02C,Y02P

Abstract:
1. A system for utilizing the heat produce by compress gas in a biogas treatment plant, comprising: a. a contaminated raw bio-gas source; b. a first stage gas compressor connected to said raw gas source capable of compressing said raw gas; c. a first stage heat exchanger connected to an outside air source and to said first stage gas compressor, wherein the air from an outside air source is used to cool said compressed gas from said first stage gas compressor; d. an adsorber connected to said first stage heat exchanger used to strip contaminants from said cooled compressed air from said first stage heat compressor; e. a second stage gas compressor connected to said adsorber to receive treated gas from said adsorber; f. a second stage heat exchanger connected to said second stage compressor to receive compressed treated gas therefrom, said second heat exchanger being connected to said adsorber to deliver heated air thereto; g. a third stage compressor connected to said second stage heat exchanger to receive cooled treated gas from said second stage heat exchanger; and, h. a third stage heat exchanger connected to said third stage compressor, said third stage heat exchanger also being connected to an outside air source to deliver cool air thereto, said third stage heat exchanger also connected to said adsorber to deliver waste heat collected by said third stage exchanger to said adsorber.