STEAM RECOVERY APPARATUS

PURPOSE:To recover condensation heat held by non-condensed steam, by providing a second stage steam recovery apparatus having capacity for recovering only non-condensed steam behind a steam recovery apparatus and bringing the compressor of this second stage steam recovery apparatus to a large load one. CONSTITUTION:Raw gas G is guided to an adsorbing tank 11 packed with an adsorbent to adsorb and collect a solvent component and, after operation is finished, desorbing steam is sent to perform the desorption of the solvent. The condensate and non-condensed steam are sent out to a drain separator 18. The non-condensed steam N is guided to a second stage heater 19 through a line and condensed herein while warm water receiving condensation heat is sent out to a second stage steam generator 20. Warm water is converted to low temp. steam P in the steam generator 20 while this steam P is guided to a second stage compressor 22 to raise the temp. and pressure thereof and sent out to the suction side of a first stage compressor 17 and sent into the compressor 17 along with low temp. steam P issued from the first stage steam generator 15 to be reutilized as desorbing steam M.