Spiral wound separation membrane module
US10821403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The purpose of the present invention is to provide a highly reliable membrane module for removing hazardous components without the risk of a feed-source fluid and a concentrated fluid intermixing inside a hollow tube. The spiral wound separation membrane module is characterized in that: a spiral wound separation membrane element accommodated in a cylindrical container, the spiral wound separation membrane element having a structure in which a laminated body having a separation membrane, a feed-side spacer and a permeation-side spacer is wound around a porous hollow tube in a spiral shape, the feed-side spacer is positioned on a feed side of the separation membrane, the permeation-side spacer is positioned on a permeation side of the separation membrane, and a feed-side flow path and a permeation-side flow path are sealed so as not to communicate directly with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.