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US 2026/0216668 A1Published application
Water distillation membranes and methods for using the same
AssigneeCellulotech Inc
InventorDaniel SAMAIN
Life of this patent
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Abstract
The disclosure relates to a membrane for water distillation, and systems containing the membrane. The membrane includes a porous material including cellulosic fibers with long chain fatty acids grafted to one or more hydroxyl groups of the cellulosic fibers. During distillation, a contact angle between water and the membrane is above 90 degrees.
Claims20
A method for desalting an aqueous solution, the method comprising:
- evaporating the water in the solution through a membrane comprising:
- at least one hydroxylated porous substrate comprising one or more long chain fatty acids grafted to one or more hydroxyl groups of the substrate,
- wherein a contact angle θ between water and the substrate is greater than 90°.
A method for desalinating or purifying water, the method comprising:
- distilling the water through a membrane comprising:
- at least one hydroxylated substrate comprising:
- one or more long chain fatty acids grafted to one or more hydroxyl groups of the substrate, wherein a contact angle θ between water and the substrate is greater than 90°.
A system for distilling a liquid, the system comprising:
- at least one membrane comprising:
- at least one hydroxylated porous substrate comprising one or more long chain fatty acids grafted to one or more hydroxyl groups of the substrate,
- wherein a contact angle θ between water and the substrate is greater than 90°.
Dependencies are inferred from the claim text.