| 摘要 |
<p>PURPOSE:To utilize the heat of low b.p. vapor discharged from the tower top of a rectification tower as a heat source by recovering the same, by obtaining high temp. and high pressure vapor by the adiabatic compression of steam generated by condensation energy of said low b.p. vapor. CONSTITUTION:A liquid mixture to be rectified supplied to a rectification tower 12 from a stock material supply pipe 11 is heated and rectified in the rectification tower 12. Low b.p. vapor is withdrawn from the top part of the tower 12 through pipings 13 and introduced into a steam generator 14 where condensed by heat exchange. Steam generated in a steam generator 14 is introduced into a compressor 19 through pipings 18 and compressed to be heated to a high temp. while the compressed steam is supplied to a reboiling vessel 21 or a steam demand part in the outside of the system and heat energy is supplied by heat exchange and, after condensation, the condensate is returned to the steam generator 14 through pipings 22. As a result, the heat of the aforementioned low b.p. vapor is recovered and can be utilized as a heat source.</p> |
