Oxygen scavenger powder
US-2024138447-A1 · May 2, 2024 · US
US9533248B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9533248-B2 |
| Application number | US-201514791800-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2015 |
| Priority date | Dec 22, 2010 |
| Publication date | Jan 3, 2017 |
| Grant date | Jan 3, 2017 |
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An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having a weight average molecular weight of from about 500 to about 1×10 6 , a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO 2 adsorbed per gram of adsorption-desorption material, and linear organo-amine polymeric materials having a weight average molecular weight of from about 160 to about 1×10 6 , a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO 2 adsorbed per gram of adsorption-desorption material. This disclosure also relates in part to processes for preparing the crosslinked organo-amine materials and linear organo-amine materials. This disclosure further relates in part to the selective removal of CO 2 and/or other acid gases from a gaseous stream containing one or more of these gases using the adsorption-desorption materials.
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What is claimed is: 1. A process for preparing an acid gas adsorption-desorption material comprising a crosslinked organo-amine material having a weight average molecular weight of from about 500 to about 1×10 6 , a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO 2 adsorbed per gram of adsorption-desorption material, or mixtures thereof; said process comprising (i) reacting at least one organo halide material comprised of at least two haloalkyl functional groups, with at least one organo-amine material under conditions sufficient to produce an organo-amine material, and (ii) crosslinking said organo-amine material under conditions sufficient to produce said crosslinked organo-amine material. 2. The process of claim 1 which is carried out in the presence of at least one porogen. 3. The process of claim 2 wherein said at least one porogen is selected from the group consisting of xylene, toluene and polyvinylpyrrolidinone.
Cross-Sectional Technologies · mapped topic
Hydrocarbons · CPC title
Pore volume, e.g. total pore volume, mesopore volume, micropore volume · CPC title
Particulate matter [e.g., sphere, flake, etc.] · CPC title
Chemical treatments not covered by groups B01J20/3007 - B01J20/3078 · CPC title
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