Title:
DISTILLATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/048725
Kind Code:
A1
Abstract:
This distillation method comprises: a supply step in which a liquid that is a process fluid is supplied to a batch distillation tower; a pressure-heating step in which a fluid for heating the liquid is pressure-heated by a compressor and supplied to a reboiler; a heating step in which heat exchange is performed between the liquid supplied to the distillation tower and the pressure-heated fluid, the liquid is heated to obtain an overhead vapor, and the fluid is condensed; a condensation step in which the heating in the heating step feeds the overhead vapor to a condenser and the overhead vapor is condensed by heat exchange to produce a condensate; a distillate extraction step in which the condensate is extracted; and a bottoms extraction step in which distillation residue in the distillation tower is extracted. The distillation method further comprises a pressure adjustment step in which the pressure of the distillation tower is adjusted so as to realize the distillation of the liquid through heating by a heat pump that operates, in the pressure-heating step, in a smaller temperature elevation range.
Inventors:
WAKABAYASHI TOSHIHIRO (JP)
OTOMO YOHEI (JP)
TOGO MASAKI (JP)
OTOMO YOHEI (JP)
TOGO MASAKI (JP)
Application Number:
PCT/JP2023/031828
Publication Date:
March 07, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
TOYO ENGINEERING CORP (JP)
International Classes:
B01D3/14; B01D1/28; B01D3/00
Domestic Patent References:
| WO2021013529A1 | 2021-01-28 |
Foreign References:
| JP2022124582A | 2022-08-26 | |||
| US20100101273A1 | 2010-04-29 | |||
| JPS62114602A | 1987-05-26 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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