Title:
METHOD FOR OPERATING HOLLOW FIBER MEMBRANE MODULE
Document Type and Number:
WIPO Patent Application WO/2023/054648
Kind Code:
A1
Abstract:
A hollow fiber membrane module operating method according to the present invention comprises a step for performing cross-flow filtration by supplying untreated liquid to the outer surface side of a hollow fiber membrane. The ratio of the viscosity μf of the untreated liquid to the viscosity μp of a filtrate satisfies μf/μp≥1.5, while the flow velocity ratio between the flow velocity vf of the untreated liquid to the flow velocity vp of the filtrate satisfies 0.02≤vp/vf≤0.3.
Inventors:
KOBAYASHI KENTARO (JP)
KANAMORI SATOKO (JP)
TACHIBANA TAKASHI (JP)
KANAMORI SATOKO (JP)
TACHIBANA TAKASHI (JP)
Application Number:
PCT/JP2022/036600
Publication Date:
April 06, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D63/02; B01D61/22; B01D69/08
Domestic Patent References:
| WO2017115769A1 | 2017-07-06 | |||
| WO2020184097A1 | 2020-09-17 | |||
| WO2017209150A1 | 2017-12-07 |
Foreign References:
| US20100059412A1 | 2010-03-11 | |||
| JP2014188439A | 2014-10-06 | |||
| JP2014124579A | 2014-07-07 | |||
| JP2020146645A | 2020-09-17 | |||
| JP2010036183A | 2010-02-18 | |||
| JP2021160479A | 2021-10-11 |
Other References:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, vol. 15, no. 3, 1982, pages 200 - 205
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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