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Sorbent compositions, sorbent articles, methods for preparing sorbent articles, and methods for capturing target gases using the sorbent articles
Sorbent compositions, sorbent articles, methods for preparing sorbent articles, and methods for capturing target gases using the sorbent articles
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机译:吸附剂组合物,吸附剂制品,制备吸附剂制品的方法以及使用该吸附剂制品捕获目标气体的方法
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摘要
Articles for capturing or separating a target gas from a gas stream may include a porous substrate such as a flexible sheet or mat, or a rigid ceramic monolith impregnated or coated with a sorbent composition. The sorbent composition may include a polyamine and a coexistent polymer chemically bonded to the polyamine. The polyamine may include a polyethylenimine. The coexistent polymer may include a polyurethane, a polyolefin-acrylic acid copolymer, or a combination thereof. The sorbent composition may be substantially less water-insoluble than compositions containing only a polyamine and may have high durability and good adsorption capacity for acidic target gases such as carbon dioxide. Methods for preparing the articles using aqueous polymer solutions are provided. Methods for capturing or separating target gases using the articles are provided.
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