| Patents for B01D 53 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols (135,933) |
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| 06/15/1999 | US5912422 Separation from carbon monoxide, carbon dioxide and hydrocarbons in an adsorpion region |
| 06/15/1999 | US5912387 Amine heat stable salt neutralization having reduced solids |
| 06/15/1999 | US5912368 Air filter assembly for automotive fuel vapor recovery system |
| 06/15/1999 | US5912198 Staged catalytic ammonia decomposition in integrated gasification combined cycle systems |
| 06/15/1999 | US5912048 Passivation carbonaceous adsorptive membranes |
| 06/15/1999 | US5911966 High surface area alumina solid |
| 06/15/1999 | US5911960 Process for purifying exhaust gases |
| 06/15/1999 | US5911956 Method of purifying gases containing nitrogen oxides and an apparatus for purifying gases in a steam generation boiler |
| 06/15/1999 | US5911742 Attachment to air-conditioner |
| 06/15/1999 | US5911681 Exhaust gas purifying apparatus and method for internal combustion engine |
| 06/15/1999 | US5911213 For an internal combustion engine |
| 06/15/1999 | CA2256077A1 Exhaust emission control device and method of manufacturing the same |
| 06/15/1999 | CA2145272C Method and apparatus for separating nitrogen-enriched gas |
| 06/15/1999 | CA2104562C Gas purification process and system |
| 06/15/1999 | CA2074644C Psa system with product turndown and purity control |
| 06/15/1999 | CA2071336C Catalyst and treatment process for gas containing sulfurous compounds |
| 06/10/1999 | WO1999028272A2 Ceramic network, method for the production and utilization thereof |
| 06/10/1999 | WO1999028239A1 Apparatus and method for constant flow oxidizing of organic materials |
| 06/10/1999 | WO1999028078A2 Method for burning, welding and/or cutting metal materials using a shielding gas |
| 06/10/1999 | WO1999028023A1 Method and apparatus for recovering rare gas |
| 06/10/1999 | WO1999028019A1 Method and catalyst for the oxidation of gaseous halogenated and non-halogenated organic compounds |
| 06/10/1999 | WO1999028018A1 Method and device for reducing the concentration of ingredients in a gas and in a liquid |
| 06/10/1999 | WO1999028017A1 Method and apparatus for desulfurizing exhaust gas |
| 06/10/1999 | WO1999028016A1 Apparatus and methods for low temperature degradation of diesel exhaust and other organic matter |
| 06/10/1999 | WO1999028015A1 Method and apparatus for processing effluents using non-thermal plasma |
| 06/10/1999 | WO1999028014A1 Method for dehydrating a wet gas using a liquid dessicant, with advanced regeneration of said dessicant |
| 06/10/1999 | WO1999028013A2 Modular pressure swing adsorption apparatus |
| 06/10/1999 | WO1999027794A1 Process for manufacturing tasteless super purified smoke for treating seafood to be frozen and thawed |
| 06/10/1999 | WO1999018333A8 Method and apparatus for using free radicals to reduce pollutants in the exhaust gases from the combustion of a fuel |
| 06/10/1999 | WO1999013049A3 Method for fermentation in conditions free from atmospheric oxygen |
| 06/10/1999 | WO1999011909A8 Method of reducing internal combustion engine emissions, and system for same |
| 06/10/1999 | WO1999003564A3 Method and apparatus for oxidizing no to no2 and apparatus and method for generating ozone |
| 06/10/1999 | DE19857015A1 Residual acids containing sulfuric acid recovery after concentration |
| 06/10/1999 | DE19755884A1 Gypsum wallboard efflorescence prevention |
| 06/10/1999 | DE19754628A1 Catalytic desulfurization of gas mixture |
| 06/10/1999 | DE19754627A1 Selectively removing ammonia or nitrogen oxides from residual gases |
| 06/10/1999 | DE19754155A1 Verfahren zum Kühlen von heißen Gasen A method for cooling hot gases |
| 06/10/1999 | DE19754135A1 Selective catalytic reduction of nitrogen oxides in exhaust gases by solid urea |
| 06/10/1999 | DE19754065A1 Removing mercury vapor from waste gases using an absorber/desorber column and a washing solution |
| 06/10/1999 | DE19753842A1 Determining when to discontinue auxiliary heating of catalyst from cold start |
| 06/10/1999 | DE19753795A1 Verfahren und Vorrichtung zur Trennung von Gasen in einem Gasgemisch Method and apparatus for separation of gases in a gas mixture |
| 06/10/1999 | DE19753720A1 Vorrichtung zur selektiven katalytischen Oxidation von Kohlenmonoxid An apparatus for the selective catalytic oxidation of carbon monoxide |
| 06/10/1999 | DE19753573A1 Exhaust gas purifying apparatus for Otto engine |
| 06/10/1999 | DE19753524A1 Method for reducing corrosion during oxidation of harmful organic substance |
| 06/10/1999 | CA2312428A1 Ceramic network, method for the production and utilization thereof |
| 06/10/1999 | CA2312028A1 Method for dehydrating a wet gas using a liquid dessicant, with advanced regeneration of said dessicant |
| 06/09/1999 | EP0920904A2 Multicomponent hollow fiber membrane tubesheets |
| 06/09/1999 | EP0920903A1 Biofilter system |
| 06/09/1999 | EP0920902A1 Device and method for treating a fluid by diphasic compression and fractionation |
| 06/09/1999 | EP0920901A2 Process for removing carbon dioxide and sulfur compounds from a technical gas, especially from natural gas and raw synthesis gaz |
| 06/09/1999 | EP0920900A1 Gas treating apparatus |
| 06/09/1999 | EP0920351A1 Process for reducing total sulphur content in gases containing hydrogen sulphide and other sulphur components |
| 06/09/1999 | EP0788399B1 Biological filter mass for gas purification |
| 06/09/1999 | EP0768916B1 Catalyst device |
| 06/09/1999 | EP0663229B1 Method and apparatus for separating nitrogen-rich gas |
| 06/09/1999 | CN2322676Y High-efficiency desulfurizing dust reducing device |
| 06/09/1999 | CN1219139A Method and reactor for electrochemical conversion of material e. g. soot particles being insoluble in fluid |
| 06/09/1999 | CN1218875A Changeable capacity rotary inclined disc type refrigerating compressor |
| 06/09/1999 | CN1218711A Process for removal of CO2 and sulphur compounds from industrial gases |
| 06/09/1999 | CN1043561C Method and apparatus for processing waste gas |
| 06/09/1999 | CA2255895A1 Psa process and system |
| 06/09/1999 | CA2255483A1 Method for recovering sulfuric acid from sulfurous by-products of a process for preparing 2-hydroxy-4-methylthiobutyric acid (mha) |
| 06/08/1999 | US5910611 Treating stripped aqueous alkanolamine solution with base to neutralize alkanolamine salt, removing precipitate formed, electrodialyzing solution in cell containg two crosslinked ion exchange membranes to remove salt, recovering alkanolamine |
| 06/08/1999 | US5910466 Thermal stability, resistant to sulfur dioxide poisoning; at least one noble metal entrapped in complex oxide crystals including alkaline earth metal oxides and at least one of iron, nickel or cobalt on a catalyst support |
| 06/08/1999 | US5910292 Method for water removal from corrosive gas streams |
| 06/08/1999 | US5910291 Surgery plume filter device and method of filtering |
| 06/08/1999 | US5910274 Single step formation of anisotropic fluid separation membranes from casting solution of polymer blends having significant surface energy differences |
| 06/08/1999 | US5910238 Microspheres for combined oxygen separation, storage and delivery |
| 06/08/1999 | US5910165 Receiver/dryer and method of assembly |
| 06/08/1999 | US5910160 Enhanced refrigerant recovery system |
| 06/08/1999 | US5910097 Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides |
| 06/08/1999 | US5909736 Filtering tobacco smoke with a fiber matrix enriched with hemoglobin, lysates of erthyrocytes, and combinations thereof |
| 06/08/1999 | CA2255404A1 Air purification system via adsorption on calcine aluminum oxide of co2 and h2o impurities |
| 06/08/1999 | CA2153840C Segmented heat exchanger flue gas treatment |
| 06/05/1999 | CA2246067A1 Process for the removal of co2 and sulfur compounds from industrial gases, in particular from natural gas and raw synthesis gas |
| 06/03/1999 | WO1999027240A1 Catalytic converter and method for mounting of converter |
| 06/03/1999 | WO1999027163A1 Microspheres for combined oxygen separation, storage and delivery |
| 06/03/1999 | WO1999026726A1 Modular dielectric barrier discharge device for pollution abatement |
| 06/03/1999 | WO1999026722A2 Catalyst body |
| 06/03/1999 | WO1999026715A1 COMPOSITION BASED ON MANGANESE AND USE FOR TRAPPING NOx FOR TREATING EXHAUST GASES |
| 06/03/1999 | WO1999026714A1 Process for the reduction of so2 from wet lime/limestone tailgas in power plant desulfurization processes |
| 06/03/1999 | WO1999026713A1 Method and device for exploiting the flue-gas heat in brown coal power stations with wet flue-gas desulphurisation |
| 06/03/1999 | WO1999026712A1 Gas-liquid contactor with liquid redistribution device |
| 06/03/1999 | WO1999026708A1 Process for separating water from chemical mixtures |
| 06/03/1999 | CA2311663A1 Process for the reduction of so2 from wet lime/limestone tailgas in power plant desulfurization processes |
| 06/03/1999 | CA2310587A1 Process for separating water from chemical mixtures |
| 06/03/1999 | CA2310144A1 Composition based on manganese and use for trapping nox for treating exhaust gases |
| 06/02/1999 | EP0919751A2 Two-way control valve arrangement |
| 06/02/1999 | EP0919280A2 Honeycomb structure for a catalyst |
| 06/02/1999 | EP0919278A1 Process for the catalytic abatement of nitrogen oxides |
| 06/02/1999 | EP0919277A1 Twin-tower gas-drying system |
| 06/02/1999 | EP0919276A1 Compressed gas drying apparatus |
| 06/02/1999 | EP0919275A1 Shuttle mechanism for twin tower air dryer system |
| 06/02/1999 | EP0919274A1 Process for purification of combustion plants exhaust gases |
| 06/02/1999 | EP0919271A1 Centrifugal separator with baffle |
| 06/02/1999 | DE19758526A1 Power station gas washer |
| 06/02/1999 | DE19753227A1 Absorber tower for power station sulfur washers and refuse incinerators |
| 06/02/1999 | DE19753143A1 Power station gas washing tower |
| 06/02/1999 | DE19738294A1 Biological filter for indoor use |
| 06/02/1999 | CN2322048Y Dust-removing desulfurizer |