Regenerable gas absorption material and device
AssigneeExposome Pvt. Ltd.
InventorPrerna Goradia
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Abstract
The present invention relates to water based regenerable filters for absorbing the harmful gases and method of preparation thereof. The regenerable filters absorb gas components in the air and have excellent reversible absorption performance of gases such as carbon dioxide, ammonia, methane, halogens, hydrogen sulphide, sulphur dioxide and so on. The filters based on nanocomposite hydrogels or hybrid hydrogels, are highly hydrated polymeric networks, either physically or covalently crosslinked with each other and/or with nanoparticles or nanostructures with very large surface areas.
Claims14
A regenerable hydrogel filter media sorbent comprising:
- a substrate about 10 to 50% wt/vol of the sorbent;
- a polymer material about 0.1 to 1% wt/vol of the sorbent, wherein the polymer material is configured to hold water, and wherein the polymer material is crosslinked;
- an adsorption material about 0.1 to 5% wt/vol of the sorbent, wherein the adsorption material is configured to adsorb gases;
- and
- water about 50 to 95% wt/vol of the sorbent.
A method for preparation of regenerable hydrogel filter media sorbent, the method comprising:
- preparing a hydrogel component by dissolving about 0.1 to 1% wt/vol of a polymer in water;
- adding a crosslinking agent to the component to thicken the hydrogel into a layer;
- mixing an adsorbent material with a substrate to create an active substrate, wherein the substrate is 2 to 50 times the weight of the substrate in the active substrate;
- sandwiching and/or mixing the layer of the thickened hydrogel with the active substrate, wherein the hydrogel is about 1 to 10 times the weight of the active substrate.
Dependencies are inferred from the claim text.