Provided is a separating agent for optical isomers, which is excellent in solvent resistance and has optical separating ability comparable to or higher than that of existing separating agents for optical isomers of chemical bonding type or physical adsorption type. In the separating agent for optical isomers, amylose (3-chloro-5-methylphenylcarbamate) is supported on a carrier through chemical bonding.

A hydrocarbon removal system according an embodiment of the present invention includes: a first area including a first hydrocarbon adsorption catalyst having a first pore size; and a second area including a second hydrocarbon adsorption catalyst having a second pore size, wherein the first pore size may be smaller than the second pore size, the first hydrocarbon adsorption catalyst may include CHA zeolite, and the second hydrocarbon adsorption catalyst may include ZSM-5 zeolite.

Described herein is a system (100) for storage and releasing of carbon dioxide comprising at least one solids reactor (1), at least one compressor (7, 8) for compressing the carbon dioxide-containing gas or fluid, respectively, which is introduced through the inlet (3) of the solids reactor, wherein the compressor (7, 8) is constructed in such a way that it adiabatically expands the gas or fluid, respectively, depleted of carbon dioxide that is discharged from the reactor by means of the outlet (2) of the solids reactor, and at least one countercurrent recuperator (6), which is constructed for the heat exchange of the compressed exhaust gas or fluid, respectively, that contains carbon dioxide and the gas or fluid, respectively, depleted of carbon dioxide.

Described is furthermore a solids reactor for storage and releasing carbon dioxide, comprising a gas-tight or fluid-tight, respectively, housing, which has an interior, at least one inlet for feeding in fluids and at least one outlet for discharging of gases or fluids, respectively, wherein the interior of the housing is filled with at least two different solids, wherein one solid is provided for storing thermal energy and the other solid is provided for regenerative storage and releasing of carbon dioxide.

Furthermore described is a method for storage and releasing of carbon dioxide.

A composite virucidal filter media is described. The filter media comprises a fibrous substrate comprising a plurality of intermingled fibers, a low cost, nontoxic, hydrophilic polymer without acidic functional groups deposited on a surface of the fibers without the formation of a continuous coating layer on the substrate, and a virucidal metal, a virucidal metal-containing compound, or combinations thereof deposited on the surface of the fibers comprising the hydrophilic polymer without acidic functional groups. The hydrophilic polymer without acidic functional groups can be charged or non-charged. Methods of making virucidal fibrous filter media are also described.

Systems and methods for removing heavy metals such as selenium from wastewater with zero valent iron media. Air may be introduced directly into a reaction zone of a fluidized bed reactor filled with the media to catalyze treatment.

A method for processing a nitrogen-containing starting gas mixture by vacuum pressure swing adsorption, in which the starting gas mixture is temporarily guided under pressure in a main flow direction through an adsorption unit filled with an adsorbent material. The adsorbent material is provided, in a first region along the main flow direction, predominantly or exclusively in the form of first adsorption bodies; the adsorbent material is provided, in a second region along the main flow direction and downstream of the first region in the form of second adsorption bodies; that at least the second adsorption bodies are provided as composite bodies that have an inner core of a non-porous, non-adsorbent material and an outer layer formed from the adsorbent material; and that the second adsorption bodies have a lower proportion of the adsorbent material, in the body volume, than the first adsorption bodies.

The present invention relates to a super absorbent polymer exhibiting more improved absorption under pressure and liquid permeability, even while basically maintaining excellent centrifuge retention capacity and absorption rate, and a method for producing the same. The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second crosslinked polymer in which the first crosslinked polymer is further crosslinked via a surface crosslinking agent, wherein the surface crosslinking agent includes at least two compounds having a solubility parameter value (σ) of 12.5 (cal/cm.sup.3).sup.1/2 or more, and wherein at least one of the surface crosslinking agents is an alkylene carbonate-based compound, and the remainder is selected from the group consisting of an alkylene carbonate-based compound and a polyhydric alcohol-based compound.

An object of the present invention is to provide a packing material suitable for use as a packing material for size exclusion chromatography for fractionation that requires large-scale treatment, the packing material being capable of being produced by a simple process and reducing column pressure drop even when the particle diameter is small, and is to provide a method for producing the packing material. In the present invention, a packing material for size exclusion chromatography is obtained by a production process including polymerizing glycerol 1,3-dimethacrylate and glycidyl methacrylate in the presence of a polymerization initiator, hydrophilizing the resulting porous particles made of a copolymer using a sugar alcohol, and then opening the rings of remaining glycidyl groups using a mineral acid.

The present invention relates to metal-organic framework characterized in that it comprises a polymer coating; further the invention relates to a process for the preparation of said polymer-coated metal-organic framework and a process for recycling after degradation. The polymer coated MOFs of this invention find application in a broad range of technologies and therapeutic areas.

Particulate material comprising rough mesoporous hollow nanoparticles. The rough mesoporous hollow nanoparticles may comprise a mesoporous shell, the external surface of which has projections thereon, the projections having smaller sizes than the particle size. The particulate material may be used to deliver active agents, such as insecticides and pesticides. The active agents can enter into the hollow core of the particles and be protected from degradation by sunlight. The rough surface of the particles retains the particles on plant leaves or animal hair. Methods for forming the particles are also described. Carbon particles and methods for forming carbon particles are also described.