| 摘要 |
<p>PURPOSE:To recover latent heat effectively by providing a falling film heat exchanger for utilizing the latent heat of stem which has been used for desorption to a reboiler of a distillation tower for separating org. solvent. CONSTITUTION:An adsorption tank 1-B saturated with a solvent component is desorbed with steam passing through a steam line 23. A part of steam for desorption is condensed thereby in the adsorption tank and stored in a feed tank 3 in the form of aq. soln. after passing through a liquid connecting line 24. After the whole body of the tank is warmed sufficiently, the desorbing steam is passed through a connecting line 25 and introduced into a heating side of a reboiler 6, where latent heat necessary for operation of a distillation tower is recovered. By this method, evaporation and distillation in a distillation apparatus are performed at the same time, so the cost is saved.</p> |
