WO2025219816 - PRE-TREATMENT OF SEAWATER WITH GRAPHENE-BASED ULTRAFILTRATION
National phase entry is expected:
Publication Number
WO/2025/219816
Publication Date
23.10.2025
International Application No.
PCT/IB2025/053751
International Filing Date
09.04.2025
Title **
[English]
PRE-TREATMENT OF SEAWATER WITH GRAPHENE-BASED ULTRAFILTRATION
[French]
PRÉTRAITEMENT D'EAU DE MER PAR ULTRAFILTRATION À BASE DE GRAPHÈNE
Applicants **
ACWA POWER COMPANY
Inventors
DAS, Ratul
Priority Data
63/634,363
15.04.2024
US
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2438 | |
| EPO | Filing, Examination, Granting | 11707 | |
| Japan | Filing, Examination, Granting | 2315 | |
| South Korea | Filing, Examination, Granting | 2366 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
23,566
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Abstract[English]
A method, an apparatus and a controller for pre-treatment of seawater is described. The apparatus controls a supply of a seawater stream to a filtration unit, which outputs a first filtered stream based on the supply of the seawater stream. The method further includes controlling a supply of the first filtered stream to a graphene-based ultrafiltration unit. The graphene-based ultrafiltration unit outputs a second filtered stream based on the supply of the first filtered stream. The graphene-based ultrafiltration unit comprises graphene oxide membranes. The method further includes controlling a supply of the second filtered stream to a seawater reverse osmosis (SWRO) membrane unit. The method further includes controlling an outlet of the SWRO membrane unit to output a desalinated stream based on the supply of the second filtered stream.[French]
L'invention concerne un procédé, un appareil et un dispositif de commande pour le prétraitement de l'eau de mer. L'appareil commande une alimentation d'un flux d'eau de mer vers une unité de filtration, qui produit un premier flux filtré en fonction de l'alimentation du flux d'eau de mer. Le procédé comprend en outre la commande d'une alimentation du premier flux filtré vers une unité d'ultrafiltration à base de graphène. L'unité d'ultrafiltration à base de graphène produit un second flux filtré en fonction de l'alimentation du premier flux filtré. L'unité d'ultrafiltration à base de graphène comprend des membranes d'oxyde de graphène. Le procédé comprend en outre la commande d'une alimentation du second flux filtré vers une unité de membrane d'osmose inverse d'eau de mer (SWRO). Le procédé comprend en outre la commande d'une sortie de l'unité de membrane SWRO pour produire en sortie un flux dessalé en fonction de l'alimentation du second flux filtré.