More particularly, this invention is directed to the use of a non reacting, non condensing gas as a means of direct heat exchange into gaseous CO2 and gas exchange with gaseous CO2 inside {HEAD ~ the gels} during depressurization to prevent {TAIL ~ condensation} of CO2 
More particularly , this invention is directed to the use of a non reacting , non condensing gas as a means of direct heat exchange into gaseous CO2 and gas exchange with gaseous CO2 inside { HEAD ~ the gels } during depressurization to prevent { TAIL ~ condensation } of CO2
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