A method of modifying a chemical interaction between a functional group of an immobilized amine in a solid sorbent composition and a compound that chemically interacts with the functional group to reduce the heat required to desorb the compound from the solid sorbent. A method of inhibiting degradation of an immobilized amine in an immobilized amine solid sorbent. Compositions and methods of use of a low-cost regenerable immobilized amine solid sorbent resistant to degradation.

Disclosed in certain embodiments are carbon dioxide sorbents that include porous particles impregnated with an amine compound.

A method for producing porous particles of a cross-linked polymer, and porous particles that can be produced according to the method are disclosed. The porous particles of a crosslinked hydroxy- or amino-group-containing polymer have a relatively low swelling factor. A composite material contains the porous particles dispersed in a continuous aqueous phase. The porous particles, or the composite material, are used for purifying organic molecules and for bonding metals from solutions. A filter cartridge contains the porous particles of a cross-linked polymer or the composite material.

A core-shell type amine-based carbon dioxide adsorbent is described, including a chelating agent resistant to oxygen and sulfur dioxide, to inhibit oxidative decomposition of amine. As a core, a porous support is employed on which an amine compound is immobilized, and, as a shell, an amine layer resistant to inactivity by sulfur dioxide is utilized. Such adsorbent exhibits high oxidation resistance because the chelating agent functions to remove a variety of transition metal impurities catalytically acting on amine oxidation. In addition, the sulfur dioxide-resistant amine layer of the shell selectively adsorbs sulfur dioxide to protect the amine compound of the core and, at the same time, the amine compound of the core selectively adsorbs only carbon dioxide. Sulfur dioxide adsorbed on the shell is readily desorbable therefrom at about 110° C. and thus remarkably improved regeneration stability is obtained during temperature-swing adsorption (TSA) processes in which sulfur dioxide is present.

The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.

Composite material comprising a support material and at least one polymeric layer, wherein the at least one polymeric layer is present in form of a polymeric mesh and is comprising at least one non-adsorbing/non-adsorptive polymer with respect to a target compound, and wherein said composite material further comprises sites which are adsorbing/adsorptive for an impurity compound; and a combination of at least one first adsorbent and at least one second adsorbent, wherein the at least one first adsorbent comprises at least one composite material comprising at least one adsorbing/adsorptive polymer, or at least one non-adsorbing/non-adsorptive polymer, or at least one adsorbing/adsorptive polymer together with at least one non-adsorbing/non-adsorptive polymer.

A moisture and hydrogen adsorption getter is provided. The moisture and hydrogen adsorption getter includes a silicon substrate including a concave portion and a convex portion, a silicon oxide layer conformally provided along a surface of the concave portion and a surface of the convex portion and configured to adsorb moisture, and a hydrogen adsorption pattern disposed on the silicon oxide layer. A portion of the silicon oxide layer is exposed between portions of the hydrogen adsorption pattern.

Disclosed in certain embodiments are carbon dioxide sorbents that include porous particles impregnated with an amine compound.

The present invention relates to a multilayer absorbent filtering item comprising: a first layer of a porous activated carbon support disposed on a nonwoven polyester-fibre felt; a second layer, where the surface of the first layer is bonded to a film of polymer and low-foam surfactants (mixture A); and a third layer, where the surface of the second layer is bonded to a film comprising an active ingredient and a low-foam surfactant in an acid aqueous medium (mixture B), the top face of said polymer film being bonded to the active ingredient, and the bottom face thereof adhering to the activated carbon, by means of polar and non-polar interactions. Also disclosed are a method for obtaining the multilayer absorbent filtering item and the use of the multilayer absorbent filtering item.

The present invention relates to method for the synthesis in-situ of the class of compounds known generally as MOFs (metal organic frameworks or organometallic compounds), COFs (covalent organic frameworks), and ZIFs (Zeolitic imidazolate framework), within and onto different types of substrates, and to the applications of such substrates having in-situ synthesized MOFs, COFs and ZIFs.