{HEAD ~ A low energy consumption apparatus} and method for treating {TAIL ~ a gas} in which a main gas stream is cooled and heat is transferred by convection to a liquid and to a secondary gas stream across a heat transfer surface 
for treating
{ HEAD ~ A low energy consumption apparatus } and method for treating { TAIL ~ a gas } in which a main gas stream is cooled and heat is transferred by convection to a liquid and to a secondary gas stream across a heat transfer surface
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