Abstract:
A nanopore reactive adsorbent composite material, which may be a porous adsorbent, has a composition and microstructure, which integrates adsorbency, reactivity and catalysis. Integration may be achieved by modifying nanopore surfaces with dense ligand groups and by embedding at least one reactant phase effective to accomplish a sequence of reactions of which at least one reaction may be catalyzed by the surface ligand groups. The solid reactant phase may include reactive metal particles, such as, Mg, Sn, Al, Fe, or Zn, or mixtures thereof, and may be effective as in-situ reducing agent. A macroporous adsorbent, may be formed from the composite material. Recovery of mercury from a contaminated liquid is described. A second reactive phase, which may comprise a sulfur polymer or another metal effective to immobilize liquid mercury in-situ, may be included in or with the composite.
Abstract:
The invention provides a non-cyclic, meso-frequency traveling wave electro-kinetic system capable of use in purification/separation and/or refrigeration/heat pump processes. In particular, the invention provides an adsorption system that can be used for fine or bulk chemical separations of liquid and gaseous materials. Similarly, the adsorption system can be readily adapted to function as a refrigeration/heat pump unit for use in heating and cooling systems. This reusable adsorption system provides high efficiency purification and/or cooling/heating with low energy demands and no moving parts. The invention can function in parallel or in series with other similar such adsorption units (though it can also operate as a single unit).
Abstract:
The athermal sorbent bed regeneration system of the present invention includes a main fuel supply, at least one sorbent bed, a source of microwave energy, and a secondary fuel supply. The main fuel supply has a first concentration of an impurity and the secondary fuel supply has a second concentration of the impurity that is less than the first concentration of the impurity. The sorbent bed adsorbs the impurity. The microwave energy source regenerates the sorbent bed for reuse.
Abstract:
A regenerable adsorber for removing VOCs from gas streams consists of a porous monolithic carbon which can be regenerated by heating by passing an electric current through it.
Abstract:
A molecular sieve apparatus and magnetic/adsorbent material composition facilitate molecular adsorption and separation using a magnetic field to hold, move, cool, and/or heat an adsorbent 1 that is bonded to magnetic materials 3 that are moveable by a magnetic field. An adsorbent 1 is bonded to a soft magnetic material 3 with a binder 2 into a powder composite material adsorbent attractable by a magnetic field (magnetoadsorbent 4). Magnetoadsorbent 4 functions to adsorb and desorb working substances, causing a molecular separation; thereby increasing the efficiency of the adsorption cycle by moving the adsorbent 1 to a location that optimally processes the adsorbent 1. Magnetic field manipulation of adsorbents 1 enables delivery of molecules to locations within systems. Magnetoadsorbents 4 of the present invention further increase the efficiency of the adsorption cycle by combining materials with functions including: catalyst, buoyancy, suspension, magnetic heating, and sinking in liquid.
Abstract:
A regenerable adsorber for removing VOCs from gas streams consists of a porous monolithic carbon which can be regenerated by heating by passing an electric current through it.
Abstract:
The present invention relates to a method for recovering and/or removing organic compounds from gas flows, wherein the method comprises the step of: removing the organic compounds from the gas flow using an adsorber and desorbing the organic compounds using microwaves, characterized in that the adsorber is a finely dispersed mixture of a hydrophilic and a hydrophobic adsorbent.
Abstract:
A method for removing a first sorbate having a first desorption activation energy and a second sorbate having a second desorption activation energy from a sorbent, involves a two-stage desorber. In a first stage, the first sorbate, second sorbate and the sorbent are contacted with a stripping fluid having a first temperature sufficient to separate the first sorbate in a vapor phase from the sorbent. In a second stage, the second sorbate and the sorbent is heated to a second temperature higher than the first temperature to separate the second sorbate in a vapor phase from the sorbent. The second sorbate can then be condensed to a liquid phase and sold to offset the costs of the process. Heating in the second phase can be facilitated by the introduction of microwave or infrared energy for stripping the second sorbate from the sorbent. Use of the microwave or infrared energy can be facilitated with a purging gas which can also be heated to function as a stripping gas. An associated apparatus includes two desorption chambers or alternatively a single desorption chamber for use in both stages.
Abstract:
A molecular sieve apparatus and magnetic/adsorbent material composition facilitate molecular adsorption and separation using a magnetic field to hold, move, cool, and/or heat an adsorbent 1 that is bonded to magnetic materials 3 that are moveable by a magnetic field. An adsorbent 1 is bonded to a soft magnetic material 3 with a binder 2 into a powder composite material adsorbent attractable by a magnetic field (magnetoadsorbent 4). Magnetoadsorbent 4 functions to adsorb and desorb working substances, causing a molecular separation; thereby increasing the efficiency of the adsorption cycle by moving the adsorbent 1 to a location that optimally processes the adsorbent 1. Magnetic field manipulation of adsorbents 1 enables delivery of molecules to locations within systems. Magnetoadsorbents 4 of the present invention further increase the efficiency of the adsorption cycle by combining materials with functions including: catalyst, buoyancy, suspension, magnetic heating, and sinking in liquid.
Abstract:
Described are a gas adsorbent which comprises anatase titanium oxide as an adsorbent, preferably, the gas adsorbent obtained by sintering anatase titanium oxide together with fluoro-carbon resin particles, and having an adsorption layer containing 20 wt. % or greater of anatase titanium oxide; and a using method of the gas adsorbent. The gas adsorbent according to the invention has adsorption performance of an odorous substance, can be regenerated in a simple manner and permits decomposition of the adsorbed ingredient upon regeneration.