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公开(公告)号：US20240216871A1
公开(公告)日：2024-07-04
申请号：US18288249
申请日：2022-04-28
Applicant: Toray Industries, Inc.
Inventor： Kentaro Kobayashi , Kenta Iwai , Yoichiro Kozaki , Satoko Kanamori , Takashi Tachibana
IPC: B01D69/08 , B01D67/00 , B01D69/02 , B01D71/34 , C08J9/28 , C08J9/42 , D01D5/06 , D01D5/24 , D04H1/4318 , D04H1/4391 , D04H1/56 , D06M10/00 , D06M10/10 , D06M101/22
CPC classification number: B01D69/082 , B01D67/0018 , B01D67/009 , B01D69/02 , B01D69/087 , B01D71/34 , C08J9/28 , C08J9/42 , D01D5/06 , D01D5/24 , D04H1/4318 , D04H1/43914 , D04H1/56 , D06M10/005 , D06M10/10 , B01D2323/02 , B01D2323/08 , B01D2323/34 , B01D2325/36 , C08J2201/0522 , C08J2327/16 , C08J2429/14 , C08J2439/04 , D06M2101/22 , D06M2200/00 , D10B2321/042 , D10B2505/04
Abstract: The present invention relates to a hollow fiber membrane in which the thickness L of a spherical structure layer is 60-500 μm (inclusive), the spherical structure layer has a first surface and a second surface, the average diameter Da1 of the spherical structure in a region Sa1 10 μm or less from the first surface and the average diameter db2 of the spherical structure in a region Sb2 10-20 μm from the second surface satisfy the relational expression Da1>db2, and the spherical structure satisfies certain parameters.
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公开(公告)号：US20240390857A1
公开(公告)日：2024-11-28
申请号：US18696502
申请日：2022-09-29
Applicant: Toray Industries, Inc.
Inventor： Kentaro Kobayashi , Satoko Kanamori , Takashi Tachibana
Abstract: An operation method of a hollow fiber membrane module is described, the operation method including: a filtration step of performing cross-flow filtration by supplying a feed to an outer surface side of a hollow fiber membrane, in which in the filtration step, a ratio of a viscosity μf of the feed to a viscosity μp of a filtrate satisfies a relation of μf/μp≥1.5, and a flow rate ratio of a flow rate vp of the filtrate to a flow rate vf of the feed satisfies a relation of 0.02≤vp/vf≤0.3.
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