A gel particle film of amino group-having polymer compound particles has a large acid gas absorption amount and desorption amount per unit volume, and has a high acid gas absorption rate and desorption rate per unit mass, and further has high stability. A gas absorber having the gel particle film supported on a carrier is useful as an acid gas separation material having good energy efficiency.

The invention relates to a heat exchanger having at least one sorption duct in which is arranged a sorption medium and through which a fluid can be made to flow, characterized in that the heat exchanger also contains at least one catalyst with which a fuel can be converted exothermically such that at least some of the resulting heat can be conveyed to the sorption medium. The invention also relates to a method for heating and/or conditioning a gas stream, having at least the following steps: supplying a gas stream, containing multiple different components, into a sorption duct in which is arranged a sorption medium, such that at least one component is bound in the sorption medium, and supplying and exothermically converting at least one fuel under the action of a catalyst, such that at least one component of the gas stream is expelled from the sorption medium.

[Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity. [Solution] A method for producing a water-absorbent resin includes: a polymerization step of polymerizing a monomer, which is a raw material of the water-absorbent resin, to obtain a hydrous gel crosslinked polymer dispersed in an organic solvent; and a separation step of separating the organic solvent and the hydrous gel crosslinked polymer. The separation step includes transfer, compression, and discharge of the hydrous gel crosslinked polymer.

The present invention relates to a method for reducing the HTO concentration in a tritium-containing aqueous solution. The present invention includes bringing water vapor or the like of a tritium-containing aqueous solution into contact with a porous material having pores in a pore diameter range of 500 Å or less, selectively occluding the HTO in the tritium-containing aqueous solution in the porous material, and obtaining a tritium-containing aqueous solution in which the HTO concentration thereof is reduced. The present invention relates to a device used for reducing the HTO concentration in a tritium-containing aqueous solution. The present invention includes a reservoir for a raw tritium-containing aqueous solution, a means for generating water vapor or the like of the tritium-containing aqueous solution, an occlusion means in which is accommodated a porous material having pores in a pore diameter range of 500 Å or less, and a means for recovering the tritium-containing aqueous solution in which the HTO concentration is reduced. The present invention furthermore includes a transfer means for transferring the water vapor or the like to the occlusion means, and a means for transferring the tritium-containing aqueous solution in which the HTO concentration is reduced from the occlusion means to a recovery means.

To reduce loss due to water evaporation and to efficiently release moisture from a moisture absorbing portion, in the humidity controller according to the present invention, a moisture absorbing portion (2) is formed to include at least two gel sections each with a different thermal conductivity and to release absorbed moisture from an exposed surface (31) that is a specific region exposed outside and that is disposed on the surface opposite to a heater (5) on the basis of heating by the heater (5).

Gels that can react with air pollutants in air and methods for making said gels, are provided. The gels are useful for removing air borne pollutants from indoor environments.

A nitric oxide generator generates nitric oxide from a mixture of nitrogen and oxygen such as air treated by a pulsating electrical discharge. The desired concentration of nitric oxide is obtained by controlling at least one of a frequency of the pulsating electrical discharge and duration of each electrical discharge pulse.

A chromatography method in which a gaseous, liquid or supercritical mobile phase containing species to be separated is circulated through a packing. The packing includes a plurality of capillary ducts extending in the packing between an upstream face through which the mobile phase enters the packing and a downstream face through which the mobile phase leaves the packing. A continuous medium permeable to molecular diffusion extends between the ducts, including a porous organic gel or an organic liquid with at least one network of connected pores, the size of which is greater than two times the molecular diameter of at least one species to be separated. The at least one species has a diffusive path between the ducts.

The invention discloses a separation matrix comprising polysaccharide gel beads, wherein said polysaccharide gel beads comprise embedded fibers. The invention further discloses a method of preparing the separation matrix and use of the matrix for separation purposes.

The object of the present invention is a new cryopolymerization process that provides crosslinked polymeric materials in the form of a macroporous gel (cryogel) capable of sequestering (neutralize) the anticoagulant heparin, its low molecular weight derivatives (LMWH and ULMWH) and heparinoids, from aqueous solutions, physiological solutions and biological fluids, such as whole blood, serum and plasma. A further object of the invention are also crosslinked polymeric materials in the form of a macroporous gel (cryogel) obtained by the cryopolymerization process of the invention that, thanks to said specific process, result to be comprised of varying proportions of HEMA and HEMA-R monomers. The molar ratio between the components (HEMA/HEMA-R) may vary between 99.9% HEMA:0.1% HEMA-R and 0.1% HEMA:99.9% HEMA-R. Object of the invention is also the use of crosslinked polymeric materials in the form of a macroporous gel (cryogel) obtainable by the cryopolymerization process of the invention for the construction of filters, membranes or devices for the treatment of biological fluids. A further object of the invention are therefore filters, membranes, or devices for the treatment of biological fluids which comprise materials obtained by the cryopolymerization process of the invention.