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1. (WO2013146466) DISTILLATION DEVICE

Pub. No.:    WO/2013/146466    International Application No.:    PCT/JP2013/057810
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Wed Mar 20 00:59:59 CET 2013
IPC: F25J 3/02
B01D 59/04
Applicants: TAIYO NIPPON SANSO CORPORATION
大陽日酸株式会社
Inventors: KIHARA Hitoshi
木原 均
Title: DISTILLATION DEVICE
Abstract:
This distillation device is equipped with: a distillation tower group wherein multiple distillation towers (D1, D2, D3) equipped with reboilers (R1, R2, R3) are cascade-connected; supply gas condensers (C'2, C'3) that liquefy gas from the earlier-stage distillation towers (D1, D2) and supply the liquefied gas to the later-stage distillation towers (D2, D3); supply gas passages (QA2, QA3) connecting the earlier-stage distillation towers (D1, D2) and the supply gas condensers (C'2, C'3); and supply liquid passages (QG2, QG3) connecting the supply gas condensers (C'2, C'3) and the later-stage distillation towers (D2, D3).