A bi-metallic coordination polymer comprising a transition metal and an alkaline earth metal is provided. In one aspect, the present disclosure provides a coordination polymer comprising a plurality of two-dimensional sheets, wherein the two-dimensional sheets arranged in parallel and comprising a plurality of transition metal cations coordinated by carboxylate-bearing ligands; and a plurality of pillars, wherein each pillar connects two adjacent two-dimensional sheets, and wherein each pillar is comprised of an alkaline earth metal coordinated to at least one -diketonate moiety.

An adsorption system is placed in an air passage used to supply air to a room. The adsorption system includes an adsorption section that adsorbs a target substance except water, and a reduction section that reduces accumulation of moisture in the adsorption section. An adsorbent used in the adsorption section contains a metal-organic framework. The reduction section includes a heating element that heats the adsorption section and evaporates moisture in air that has flowed into the adsorption section.

A process for purification of a carbon dioxide feedstock that includes carbon dioxide and gaseous and liquid C.sub.1+ hydrocarbons. Specifically, a carbon dioxide feedstream is passed through one or more separation unit, each separation unit removing one or more C.sub.1+ hydrocarbon from the carbon dioxide feedstream to provide a richer carbon dioxide gas stream. The one or more separation unit employs an adsorption media and has an adsorption step and a media regeneration step.

The present invention relates to an organic-inorganic hybrid nanoporous material, maintaining a nanoporous skeleton structure formed by coordination of an organic ligand containing an aromatic compound to a trivalent central metal ion, and further having an intramolecular acid anhydride functional group modified on the aromatic compound of the nanoporous skeleton structure, and thereby exhibits selectivity for olefins, and an adsorbent comprising the same. Specifically, the organic-inorganic hybrid nanoporous material of the present invention exhibits an excellent olefin-selective adsorption capacity through differences in adsorption equilibrium and adsorption rate, and thus can be usefully employed in the separation of C2-C4 hydrocarbons. Further, the olefins adsorbed to the organic-inorganic hybrid nanoporous material can be desorbed by purging of an inert gas which is not liquefied by way of mild vacuum conditions or compression, and thus, the organic-inorganic hybrid nanoporous material can be used to prepare olefins by separating C2-C4 hydrocarbon mixtures.

Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands which have high selectivity and stability in the present of gases and vapors including H.sub.2S, H.sub.2O, and CO.sub.2. Methods include capturing one or more of H.sub.2S, H.sub.2O, and CO.sub.2 from fluid compositions, such as natural gas.

Provided is an adsorbent used for removing carbon dioxide from a gas containing carbon dioxide, the adsorbent containing cerium oxide containing cerium and a metallic element (excluding cerium) having an electronegativity of 1.00 or more.

Provided is an adsorbent used for removing carbon dioxide from a gas comprising carbon dioxide, the adsorbent comprising a cerium oxide and having an average pore diameter of 50 nm or less, the average pore diameter measured by the BET method using argon gas as an adsorption gas.

In accordance with the present subject matter there is provided peptide-based compounds. methods of making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for the containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.

The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.

A volatile organic compound condensation system and method thereof for enhancing drying efficiency of a filter using VOC condensation heat including high-temperature steam condensation heat are disclosed. A volatile organic compound condensing system according to the present invention is characterized by comprising: an adsorption-desorption unit repeating an adsorption process of adsorbing volatile organic compound (VOC) from a supply gas and a desorption process of desorbing the adsorbed VOC by supplying high-temperature steam to the VOC adsorbed by the adsorption process; a condensation heat storage unit for storing VOC condensation heat being generated in the adsorption-desorption unit by using phase change material (PCM); and a drying control unit that dries the adsorption-desorption unit after the desorption process by using the condensation heat stored in the condensation heat storage unit.