| 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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| 10/01/1997 | EP0658245B1 Process and apparatus for producing liquid carbon dioxide |
| 10/01/1997 | CN1160836A Refractory furnace liner in thoroughfare from gasifier to exhaust-heat boiler |
| 10/01/1997 | CN1160599A Preparation process of catalyst for waste gas purification |
| 10/01/1997 | CN1160598A Six-tower vacuum adsorption gas separating technology |
| 09/30/1997 | US5672790 Process for the hydrogenolysis of chlorofluorocarbons and of chlorofluorohydrocarbons |
| 09/30/1997 | US5672557 Paladium-containing three-way automotive catalysts having unique support |
| 09/30/1997 | US5672326 Catalytic cracking |
| 09/30/1997 | US5672325 Method for the oxidation treatment of decaborane gas |
| 09/30/1997 | US5672324 Heat generator positioned between electrodes; multilayer |
| 09/30/1997 | US5672323 Particle removal means, wet flue gas desulfurization tower, means for supplying activated carbon |
| 09/30/1997 | US5672322 Method, dry multi-stage pump and plasmascrubber for converting reactive gases |
| 09/30/1997 | US5672197 Selective adsorption of gas component whereby desorption and gas flow through simulated moving chromatographic columns is induced by pressure-swing cycles |
| 09/30/1997 | US5672196 Cyclic process; swing adsorption |
| 09/30/1997 | US5672195 Process for the separation of mixtures of oxygen and of nitrogen employing an adsorbent with improved porosity |
| 09/30/1997 | US5671612 Process and apparatus for recovering vapor |
| 09/30/1997 | CA2097115C Alkaline-earth based sorbent for removing effluent from a gas stream |
| 09/30/1997 | CA2030823C Method and apparatus for reducing the nitric oxide concentration in the waste gas flow of combustion processes |
| 09/29/1997 | CA2201054A1 Gas separation |
| 09/29/1997 | CA2172904A1 Apparatus for the purification of the gases discharged from auto vehicles in a closed environment such as repair shops, machine shops and similar places |
| 09/27/1997 | CA2201045A1 Atmospheric air treatment installation and procedure |
| 09/27/1997 | CA2200997A1 Process for treating a gas mixture by pressure swing adsorption |
| 09/25/1997 | WO1997035099A1 Caltalytic converter for a tailpipe including apparatus for relieving back pressure |
| 09/25/1997 | WO1997034694A1 PREPARATION AND USE OF NON-CHROME CATALYSTS FOR Cu/Cr CATALYST APPLICATIONS |
| 09/25/1997 | WO1997034683A1 Methods of removing gaseous elementary mercury from gases in two successive stages |
| 09/25/1997 | WO1997034643A1 Ozone sterilizer and generator |
| 09/25/1997 | DE19611293A1 Intermittent cleaning of process exhaust air |
| 09/25/1997 | DE19610846A1 Process for removing hydrogen cyanide from gases |
| 09/25/1997 | DE19610722A1 Production of protective or reaction gases |
| 09/25/1997 | CA2250132A1 Preparation and use of non-chrome catalysts for cu/cr catalyst applications |
| 09/25/1997 | CA2249262A1 Caltalytic converter for a tailpipe including apparatus for relieving back pressure |
| 09/25/1997 | CA2247997A1 Methods of removing gaseous elementary mercury from gases in two successive stages |
| 09/24/1997 | EP0796983A1 Device for purifying exhaust gas of engine |
| 09/24/1997 | EP0796647A1 Hydrogen separation member |
| 09/24/1997 | EP0796646A1 Method for the removal of carbon dioxide present in gases and absorbent |
| 09/24/1997 | EP0796390A1 Process and device for monitoring the operation of a catalyst |
| 09/24/1997 | EP0796221A1 Method and equipment for recovery and treatment of sulphur dioxide contained in exhaust gases |
| 09/24/1997 | EP0796145A1 Acid contacted enhanced adsorbent particle and method of making and using therefor |
| 09/24/1997 | EP0796137A1 Close coupled catalyst |
| 09/24/1997 | EP0796136A1 Process for operating a catalytic converter in one or several parts, in particular for purifying smoke gas, and catalytic converter for implementing said process |
| 09/24/1997 | EP0796135A1 Flue gas scrubbing apparatus |
| 09/24/1997 | EP0796134A1 Method and device for treating natural gas containing water and condensible hydrocarbons |
| 09/24/1997 | EP0766598A4 Improved entrainment separator for high velocity gases and reheating of scrubber gases |
| 09/24/1997 | CN2262916Y Cubic ventilating sterilizing deodorization device for refrigerator |
| 09/24/1997 | CN1160443A Filter for photothermographic developer |
| 09/24/1997 | CN1159958A Process for dehydration of gas |
| 09/24/1997 | CN1035926C Spray tower and method for cooling, moistening and/or purifying gas |
| 09/23/1997 | US5670660 Process for collecting airborne anhydrides |
| 09/23/1997 | US5670445 Cleaning agent of harmful gas and cleaning method |
| 09/23/1997 | US5670444 Removal of nitrogen oxide from exhaust gas with silver metal catalyst on porous inorganic oxide |
| 09/23/1997 | US5670443 Exhaust gas cleaner and method for cleaning exhaust gas |
| 09/23/1997 | US5670125 Process for the purification of nitric oxide |
| 09/23/1997 | US5670124 Nitrogen-containing molecular sieving carbon, a process for preparing the same and use thereof |
| 09/23/1997 | US5670123 Process for the extraction of hydrogen sulphide from a gas mixture |
| 09/23/1997 | US5670122 Methods for removing air pollutants from combustion flue gas |
| 09/23/1997 | US5670051 Polyethers |
| 09/23/1997 | US5670036 Ammonia conversion to nitrogen using bromide electrolyte and hypobromite ions to dissolve ammonia to produce nitrogen by oxidation, regeneration of hypobromite ions with electricity |
| 09/23/1997 | US5670027 Supplying stream of liquid containing water |
| 09/23/1997 | US5669962 Drying a compressed gas stream using heat exchangers with shells and tubes, compression and adsorption |
| 09/23/1997 | US5669961 Method for the purification of noble gases, nitrogen and hydrogen |
| 09/23/1997 | US5669960 Removal of carbon dioxide from hydrogen gas to form synthesis gas |
| 09/23/1997 | US5669959 Process for safe membrane operation |
| 09/23/1997 | US5669958 Methane/nitrogen separation process |
| 09/23/1997 | US5669947 Latch for modular air handling system |
| 09/23/1997 | US5669154 For compressed air from a compressor |
| 09/23/1997 | CA2171901A1 Impregnated active carbons |
| 09/23/1997 | CA2111796C Process for converting heat stable amine salts to heat regenerable amine salts |
| 09/23/1997 | CA2005066C Process for capturing nitrogen from air using gas separation membranes |
| 09/19/1997 | CA2171993A1 Adsorption process and means for gas separation |
| 09/18/1997 | WO1997033765A1 Variable adsorption filter |
| 09/18/1997 | WO1997033680A1 Fluid agitation/flow device |
| 09/18/1997 | WO1997033679A1 Air drying and purification system |
| 09/18/1997 | WO1997033678A1 A method for removing nitrogen oxides, sulfur oxides, and other acid gases from a gas stream |
| 09/18/1997 | WO1997027930A3 Desulphurisation method and apparatus |
| 09/18/1997 | DE19633257C1 Fine porous glass granule or powder production |
| 09/18/1997 | DE19614629A1 Apparatus to generate ozone from gases or fluids |
| 09/18/1997 | DE19610485A1 Removal of naphthalene from gases, e.g. coke oven gas |
| 09/18/1997 | DE19610199A1 Disposal of ash-laden air from a steam boiler dry ash receiver |
| 09/18/1997 | DE19610137A1 Vehicle exhaust cleaner using electrical discharge |
| 09/18/1997 | DE19609570A1 Toxic gas mixtures containing sulphuryl fluoride used for pest control treatment of stored goods, e.g. works of art |
| 09/18/1997 | CA2248679A1 A method for removing nitrogen oxides, sulfur oxides, and other acid gases from a gas stream |
| 09/17/1997 | EP0795350A1 Process for the purification of exhaust gases containing S02 |
| 09/17/1997 | EP0794830A1 Device for mixing particulate material and liquid |
| 09/17/1997 | EP0794826A1 Nitrogen oxide decomposing process and catalyst |
| 09/17/1997 | EP0794825A1 Method and apparatus for liquid regulation in wet cleaning of a gas |
| 09/17/1997 | EP0766752A4 Oxygen supply and removal apparatus |
| 09/17/1997 | EP0734287B1 Method for the destructive scrubbing of methyl chloride gas |
| 09/17/1997 | EP0696256B1 Process for the removal of gaseous impurities from a stream of hydrogen |
| 09/17/1997 | CN1159792A Container for moisture-sensitive material |
| 09/17/1997 | CN1159767A Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 09/17/1997 | CN1159430A Comprehensive utilization system for restaurant three-waste treatment |
| 09/17/1997 | CN1159363A Vertical orifice column for smoke purification |
| 09/17/1997 | CN1159362A Absorbent packet |
| 09/17/1997 | CN1159361A Improved liquid distributer for padding tower |
| 09/17/1997 | CN1159360A Pressure-changeable adsorption air pre-purifier |
| 09/17/1997 | CN1035894C Apparatus for catalytic exhaust gas cleaning |
| 09/16/1997 | US5667875 Exhaust gas cleaning metallic substrate |
| 09/16/1997 | US5667760 Methods for sweetening hydrocarbons |
| 09/16/1997 | US5667751 Alloy material with improved catalytic properties |
| 09/16/1997 | US5667713 Sorbing sheets and laminates having reactivating and invigorating functions |
| 09/16/1997 | US5667651 Apparatus and associated method for reducing an undesired constituent of gas associated with wastewater and having sensor fault detection |