The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.

A sorbent product, including from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one base sorbent material; and from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one binder. The sorbent product may further include at least from about 0 wt % to about 99% wt %, based on the total weight of the sorbent product, of at least one additional additive. Methods for making same and methods and systems for controlling multiple pollutants are also included.

A structured material assembly for removing CO.sub.2 from a gas, comprises a substrate, a sorbent for adsorbing CO.sub.2 from the gas, and a desorption material integrated into the structured material assembly, which is responsive to inputted energy to generate heat to desorb CO.sub.2 from the sorbent. The CO.sub.2-containing gas may comprise ambient air.

Embodiments provide a methane microporous carbon adsorbent including a thermally-treated CVD carbon having a shape in the form of a negative replica of a crystalline zeolite has a BET specific surface area, a micropore volume, a micropore to mesopore volume ratio, a stored methane value and a methane delivered value and a sequential carbon synthesis method for forming the methane microporous carbon adsorbent. Introducing an organic precursor gas for a chemical vapor deposition (CVD) period to a crystalline zeolite that is maintained at a CVD temperature forms the carbon-zeolite composite. Introducing a non-reactive gas for a thermal treatment period to the carbon-zeolite composite maintained at a thermal treatment temperature forms the thermally-treated carbon-zeolite composite. Introducing an aqueous strong mineral acid mixture to the thermally-treated carbon-zeolite composite forms the methane microporous carbon adsorbent. The crystalline zeolite includes tri-ethanolamine (TEA) and has a shape that is orthogonal with a mid-edge length in a range of 8 m to 20 m.

A polymer composite article having retained solids is disclosed. The polymer composite article includes a composite region having a first porous polymer comprising a plurality of pores and the retained solids. The composite region has at least a portion of the retained solids immobilized within some of the pores. In embodiments where the retained solids are solid sorbent materials, the article is configured to receive carbon dioxide through the first porous polymer that can be adsorbed onto the solid sorbent.

A water-harvesting system can operate with a material that can take up and release water with minimum energy requirements and powered by low-grade energy sources, such as sunlight, in order to potentially allow its deployment into households, especially those located in sunny regions. A water-harvesting method and system can include vapor adsorption using a porous metal-organic framework. In certain embodiments, the porous metal-organic framework can include metal-organic framework in ambient air with low relative humidity, typical of the levels found in most dry regions of the world.

The invention relates to a superior core-in-shell adsorbent comprising adsorbent, and an inert core, wherein said core possesses a porosity less than 10%, and has a volumetric thermal capacity greater than 1 J/K*cc. The adsorbents of the invention possess good physical strength, and allow a longer cycle time, thereby reducing the blowdown (vent) losses compared to known adsorbents. The invention relates to an adsorber design for a vacuum/pressure swing adsorption (VSA, VPSA, PSA) process designed to obtain oxygen product from air utilizing the adsorbents of the invention.

Disclosed are systems and methods for processing liquefied natural gas (LNG). A LNG production system may include a contaminant removal process with one or more sets of sorbent beds co-loaded with a metal sulfide sorbent and/or metal oxide sorbent. In some examples, the contaminant removal process may include one or more molecular sieve dehydrators co-loaded with a 3A or 4A sieve and a 3A or 4A sieve impregnated with silver. The one or more sets of sorbent beds may be arranged at various locations throughout the LNG production system including upstream of or downstream of heavy component removal beds having activated carbon. In some instances, the LNG production system may include a regeneration process for moving heated fluid, typically feed gas, through a first heavy component removal bed while maintaining other heavy component removal beds online to reduce downtime for the LNG production system, increase production efficiency, and decrease an amount of greenhouse gases released from defrost and flare-offs.

Porous substrates comprising a composition disposed thereon and methods of disposing a composition on porous substrates. The composition includes a matrix. The matrix includes a plurality of polytetrafluroethylene fibrils and a plurality of active particles.

Compositions including a matrix, methods of making such compositions, structures including such compositions, methods of disposing such compositions on a substrate; wherein the matrix includes: a plurality of polytetrafluroethylene fibrils formed from PTFE resin and a plurality of active particles.