Entries |
Document | Title | Date |
20080236389 | Impregnated Monoliths - The present invention relates to adsorbent honeycomb monoliths and other porous monoliths impregnated with alkaline and/or caustic salts of alkaline metal or alkaline earth metal. The impregnated monoliths have high adsorption capacity and low flow resistance, yet with minimized flammability, suitable for use in removal of acidic, malodorous and/or harmful gases. | 10-02-2008 |
20080295689 | MERCURY REMOVAL SORBENT - A sorbent composition comprising a vanadium compound and a ZrO | 12-04-2008 |
20100005961 | METHOD AND APPARATUS FOR CONDENSING OZONE GAS - The present invention provides a method and an apparatus for condensing ozone arranged so as to efficiently take out the ozone gas of a predetermined concentration, although its construction is simple. The method for condensing the ozone gas comprises acting ozone-oxygen mixture gas on an adsorbing cylinder which is filled in its interior area with an adsorbent so as to selectively adsorb the ozone gas to an adsorbent and desorbing the selectively adsorbed ozone gas so as to condense and purify the ozone gas. The method further includes acting the ozone-oxygen mixture gas on the adsorbent in non-cooled state to selectively adsorb the ozone gas to the adsorbent and vacuuming the adsorbing cylinder on performing desorption-operation of the ozone gas to desorb the ozone gas from the adsorbent. | 01-14-2010 |
20100192771 | METHOD OF SEPARATION OF HYDROGEN FROM GAS MIXTURES - A method of separation of hydrogen from gas mixtures consisting in that a gas mixture ( | 08-05-2010 |
20100269693 | METHOD OF REMOVING ACIDIC GAS COMPONENTS FROM A GAS MIXTURE - A pressurized gaseous mixture acidic gas and a useful gas is directly in a first absorption column with a physically acting absorption agent. Then the absorption agent loaded with the acid gas and useful gas is subdivided into first and second streams. The first stream is fed directly to a recycle flash container and there decompressed to reclaim the useful gas, extract the acidic gas from the absorption agent, and form a recycled gas containing the useful gas and acidic gas. The second stream is through a second absorption column to the recycle flash container. Some of the recycled gas from the recycle flash container is compressed and fed through the second absorption column so as to therein directly contact the second stream, and then the recycle gas that has passed through the second absorption column and contacted the second stream is returned to the gaseous mixture. | 10-28-2010 |
20100307335 | FUEL CLEANING FOR GAS FIRED ENGINES - Gas fired internal combustion engines which are run on contaminated fuel suffer from the buildup of internal deposits and corrosion. This is a particular problem with engines fuelled by biogas, e.g. from waste decomposition. By filtering the fuel via a filter containing an ion-exchange resin substantial improvements can be obtained. | 12-09-2010 |
20100319536 | PROCESSES FOR PURIFICATION OF ACETYLENE - This invention relates in part to a process for producing high purity acetylene by withdrawing a crude acetylene stream from a storage source, and passing said stream through an adsorbent bed that contains layered adsorption media to selectively remove moisture, solvent and carbon dioxide from the stream, thereby producing the high purity acetylene. The adsorption media is regenerated in-situ. The high purity acetylene product is useful as a source material for depositing carbon and carbon-containing films in semiconductor applications. | 12-23-2010 |
20120036999 | Method of Separating and Storing Volatile Gases - A method of using a crystallographic framework of sterically bulky calixarene molecules to selectively separate and/or store volatile gas components. Sterically bulky calix[4]arenes or their derivatives form a crystalline lattice that has relatively large lattice voids, is nonporous, and is held together predominately by van der Waals forces. The calix[4]arene lattice can form a guest-host assembly by absorbing a desired volatile gas guest component into the crystalline lattice without any phase shift or other change to the lattice structure. The crystalline calixarene can also be desirably used to purify a gas mixture by removing one or more volatile gas contaminants or by removing and storing the desired volatile gas component. This method can preferably be used to purify a hydrogen gas stream by removing the carbon dioxide and carbon monoxide contaminants or to remove and store oxygen from the air or carbon dioxide and carbon monoxide from combustion gases. | 02-16-2012 |
20120067216 | USE OF A MICROPOROUS CRYSTALLINE MATERIAL OF ZEOLITIC NATURE WITH RHO STRUCTURE IN NATURAL GAS PROCESSING - The present invention describes the use of isostructural zeolites with rho zeolitic structure in processes of adsorption and separation of the various components of natural gas. | 03-22-2012 |
20120079938 | RADIAL BED VESSELS HAVING UNIFORM FLOW DISTRIBUTION - The present invention relates generally to radial flow vessels and processes to achieve even fluid flow distribution through the bed during purification, separation or reaction processes. The radial bed vessel is designed such that the ratio of the cross-sectional flow areas of the flow channels is in proportion to the ratio of the mass flow rates of the process gas with the proportionality constant between 0.7 and 1.4. In addition, the channels each have a cross-sectional flow areas such that the pressure change within each channel is less than or equal to 10% of the pressure drop across the bed of active material under the process operating conditions for the particular gas employed. | 04-05-2012 |
20120304858 | CAPTURE OF CARBON DIOXIDE (CO2) FROM AIR - Disclosed is a method for removing carbon dioxide from a gas stream, comprising placing the gas stream in contact with a resin, wetting the resin with water, collecting water vapor and carbon dioxide from the resin, and separating the carbon dioxide from the water vapor. The resin may be placed in a chamber or a plurality of chambers connected in series wherein the first chamber contains resin that was first contacted by the gas, and each successive chamber contains resin which has been wetted and carbon dioxide collected from for a greater period of time than the previous chamber, and so on, until the last chamber. Secondary sorbents may be employed to further separate the carbon dioxide from the water vapor. | 12-06-2012 |
20130019749 | Method for Recovering High-Value Components from Waste Gas Streams - Method for recovering a desired component from a waste gas comprising (a) at an operating facility, introducing a waste gas comprising the desired component and one or more undesired components into an adsorber containing adsorbent material selective for the desired component, adsorbing at least a portion of the desired component therein, (b) terminating flow of waste gas into the adsorber; and (c) recovering and concentrating the desired component by either (1) isolating the adsorber, transporting the adsorber to a central processing facility, or (2) withdrawing from the adsorber an intermediate gas enriched in the desired component, compressing the intermediate gas and storing it in a vessel, isolating the vessel, transporting the vessel to a central processing facility to provide a concentrated product further enriched in the desired component. | 01-24-2013 |
20140013942 | Carbon sorbent for reversible ammonia sorption - A sorbent that is particularly effective for the efficient adsorption and subsequent desorption of ammonia is produced from a high-purity carbon material which is exposed to an oxidizing environment so as to produce an effective amount of at least one oxygen species on its exposed surfaces. The high purity carbon material may be produced by carbonizing a polymer material, and the sorbent may comprise a support having an open-cell, three dimensional, lattice-like structure. | 01-16-2014 |
20140326137 | NEGATIVE PRESSURE VAPOR RECOVERY SYSTEM - A vapor recovery system includes a product handling circuit and a control circuit. The control circuit maintains a negative pressure in the product handling circuit in order to prevent undesirable fugitive vapor emissions. | 11-06-2014 |
20150059572 | METHOD AND APPARATUS FOR RAPID ADSORPTION-DESORPTION CO2 CAPTURE - A method of capturing and sequestering a gas species from a fossil fuel-fired power plant flue gas is disclosed. The method includes the step of providing an apparatus having a vessel adapted to be pressurized and a hollow fiber membrane contained in the vessel and having a sorbent embedded therein. The method further includes the steps of subjecting the hollow fiber membrane to a flow of flue gas, removing one or more gas species from the flue gas with the hollow fiber membrane, and regenerating the sorbent contained in the hollow fiber membrane. | 03-05-2015 |
20150311059 | VACUUM ADSORPTION APPARATUS AND A VACUUM ADSORPTION METHOD OF SEMICONDUCTOR PACKAGE - Provided is a vacuum adsorption apparatus and a method of adsorbing a semiconductor package in a vacuum state. The vacuum adsorption apparatus includes a housing having an opening formed on its top surface, a vacuum adsorption unit disposed in the housing, and a stage formed on the opening formed in the housing and including a plurality of holes. A pressure generated from the vacuum adsorption unit is applied to the top surface of the stage through the opening and the plurality of holes. | 10-29-2015 |
20150367275 | OXYGEN SEPARATION SYSTEM AND METHOD OF GENERATING A FLOW OF OXYGEN ENRICHED GAS - The present invention refers to an oxygen separation system ( | 12-24-2015 |
20160133347 | VENTILATION SYSTEM OPERATING METHOD FOR USE DURING A SERIOUS INCIDENT IN A NUCLEAR PLANT - A ventilation system operating method for a service personnel-accessible operations room or control room in a nuclear plant or nuclear power plant enables a supply of decontaminated fresh air at least for a few hours in the event of serious incidents involving the release of radioactive activity. The content of radioactive inert gases in the fresh air supplied to the operations room should be as low as possible. Therefore, an air supply line is guided from an external inlet to the operations room, a first fan and a first inert gas adsorber column are connected into the air supply line, an air discharge line is guided from the operations room to an external outlet, a second fan and a second inert gas adsorber column are connected into the air discharge line, and a switchover device interchanges the roles of the first and second inert gas adsorber columns. | 05-12-2016 |