An air purification apparatus includes an adsorption unit, a purification passage, and a regeneration passage. The adsorption unit adsorbs carbon dioxide and water vapor in air. The purification passage introduces air in a passenger compartment into the adsorption unit, and returns air, from which the carbon dioxide and the water vapor are adsorbed and removed by the adsorption unit, into the passenger compartment. The regeneration passage introduces air for regeneration into the adsorption unit, and discharges used air for regeneration obtained by regenerating the adsorption unit to an outside of the vehicle. An upstream side of the adsorption unit of the regeneration passage and the purification passage is constituted by an internal air introduction pipeline configured to introduce air from the passenger compartment.

It is an object of the present invention to provide a filter which remove acidic gas in the atmosphere with high efficiency and has excellent water resistance. A filter comprising: an aluminium substrate; and an adsorption layer on a surface of the aluminium substrate, wherein the adsorption layer contains activated carbon, a manganese oxide, and an acrylic resin having a pH of 3.0 to 6.5.

It is an object of the present invention to provide a filter which remove acidic gas in the atmosphere with high efficiency and has excellent water resistance. A filter comprising: an aluminium substrate; and an adsorption layer on a surface of the aluminium substrate, wherein the adsorption layer contains activated carbon, a manganese oxide, and an acrylic resin having a pH of 3.0 to 6.5.

The present invention covers a novel method for creating an adsorbent and the resulting novel adsorbent. The method may be used to remove pollutants/unwanted chemicals from water, air, other gases, biological fluids (such as blood, urine, lipids, protein fluids), and other fluids (such as fuel). The adsorbent may be used to remove heavy metals (for example, lead), organic pollutants, inorganic non-meal pollutants (for example, nitrates and bromates). Accordingly, the current invention has many applications including but not limited to water treatment, wastewater treatment, biomedical fluid treatments, gas cleanup, and fuel (oil, gas) cleanup.

The present invention covers a novel method for creating an adsorbent and the resulting novel adsorbent. The method may be used to remove pollutants/unwanted chemicals from water, air, other gases, biological fluids (such as blood, urine, lipids, protein fluids), and other fluids (such as fuel). The adsorbent may be used to remove heavy metals (for example, lead), organic pollutants, inorganic non-meal pollutants (for example, nitrates and bromates). Accordingly, the current invention has many applications including but not limited to water treatment, wastewater treatment, biomedical fluid treatments, gas cleanup, and fuel (oil, gas) cleanup.

An adsorbent having a microwave absorption property is provided. The adsorbent having an improved microwave absorption property, which has a core-shell structure including a silicon carbide bead disposed therein, and an adsorbing material disposed outside the silicon carbide bead, can be provided. Also, the adsorbent may further include a plurality of silicon carbide particles dispersed and disposed therein and having a diameter of 1 μm to 10 μm, and the adsorbing material may be ion-exchanged with a cation. Therefore, the adsorbent can be useful in improving desorption efficiency since the adsorbent may be rapidly heated by microwaves to reach the desorption temperature due to high reactivity to microwaves. Also, the adsorbent can be useful in maintaining full adsorption capacity without having an influence on adsorption quantity since the silicon carbide bead is disposed in the inner core of the adsorbent. Further, when the adsorbent is applied to conventional systems for removing organic compounds using microwaves or dehumidification systems, the adsorbent can be semi-permanently used, and may also have an effect of enhancing the energy efficiency by 30% or more, compared to adsorbents used in the conventional systems.

A filter element (1) for use in a gas purification device (100) is disclosed. It comprises a substrate (10) and a filter layer (20) covering an exterior surface of the substrate (10). The substrate (10) comprises material for containing chemicals (30) effective to remove gas pollutants from a gas. The material of the filter layer (20) is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, and the exterior surface of the substrate (10) covered by the filter layer (20) is hydrophobic.

Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO.sub.2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.

Structured adsorbent beds comprising a high cell density substrate, such as greater than about 1040 cpsi, and a coating comprising adsorbent particles, such as DDR and a binder, such as SiO.sub.2 are provided herein. Methods of preparing the structured adsorbent bed and gas separation processes using the structured adsorbent bed are also provided herein.

A process is disclosed for the removal of hydrogen sulfide (H.sub.2S) from natural. This process provides for passing a natural gas feedstream comprising H.sub.2S though a regenerable adsorbent media which adsorbs H.sub.2S to provide an H.sub.2S-lean natural gas product and H.sub.2S. The regenerable adsorbent media of the present invention is a tertiary amine functionalized cross-linked macroporous polymeric adsorbent media.