| 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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| 05/05/1993 | EP0539816A1 Apparatus for defrosting refrigeration driers at temperatures below 0 degrees Celcius |
| 05/05/1993 | EP0539459A1 Method and device for purifying air |
| 05/05/1993 | EP0439599B1 Bulk materials reactor |
| 05/05/1993 | CN2131594Y 空气干燥机 Air Dryer |
| 05/05/1993 | CN1071601A Process for production of gas containing large oxygen |
| 05/05/1993 | CN1071600A Particle-loaded blown microfiber article for separations and purifications |
| 05/05/1993 | CN1020416C Method and equipment for industry smoke comprehensive purifying and dust removing |
| 05/05/1993 | CN1020415C Boiler flue-gas treater and treating method thereof |
| 05/04/1993 | USH1189 Method and apparatus for destroying certain chemical and biological warfare agents |
| 05/04/1993 | US5208335 Reversible oxygen sorbent compositions |
| 05/04/1993 | US5208206 Method of manufacturing an exhaust gas purifying catalyst |
| 05/04/1993 | US5208205 Catalyst system for converting emissions of a lean-burn engine |
| 05/04/1993 | US5208204 Three-way catalyst for treating emissions from compressed natural gas fueled engines |
| 05/04/1993 | US5208203 Diesel engine exhaust gas-purifying catalyst |
| 05/04/1993 | US5208202 Exhaust gas cleaner and method of cleaning exhaust gas catalyst for cleaning exhaust gas |
| 05/04/1993 | US5208198 Catalyst for purifying exhaust gas |
| 05/04/1993 | US5207906 Membrane separation module |
| 05/04/1993 | US5207877 Methods for purification of air |
| 05/04/1993 | US5207808 Canister for adsorbing evaporated fuel |
| 05/04/1993 | US5207806 Dual product pressure swing adsorption and membrane operations |
| 05/04/1993 | US5207734 Engine exhaust system for reduction of hydrocarbon emissions |
| 05/04/1993 | CA1317274C Pollution control catalyst for minimizing h-s emissions |
| 05/04/1993 | CA1317231C Process for the production of a catalytic converter for exhaust-gas cleaning and catalytic converter produced according to this |
| 05/04/1993 | CA1317092C Process for reheating flue gases after wet cleaning by contact with sulphuric acid |
| 05/04/1993 | CA1317091C Process for nitrogen oxides reduction with minimization of the production of other pollutants |
| 05/04/1993 | CA1317090C Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt |
| 05/04/1993 | CA1317089C Economic recovery and utilization of boiler flue gas pollutants |
| 05/03/1993 | CA2081818A1 Process for the oxidative purification of waste gases containing nitrogen oxides |
| 05/01/1993 | CA2081502A1 Apparatus for the defrosting of refrigerating driers below 0° c |
| 04/29/1993 | WO1993008383A1 Exhaust and purification device for internal combustion engine |
| 04/29/1993 | WO1993008121A1 PROCESS FOR PREPARING HYDROXYLAMINE FROM NOx-CONTAINING FLUE GASES |
| 04/29/1993 | WO1993007955A1 Electrodialytic water splitting process for removing so2 from gases |
| 04/29/1993 | WO1993007954A1 A method of removing nitrogen oxides from a gas flow by using a combustion exchanger |
| 04/29/1993 | WO1993007953A1 Separation and concentration method based on selective absorption |
| 04/29/1993 | WO1993007952A1 Biological filter |
| 04/29/1993 | WO1993007951A1 Waste gas scrubber |
| 04/29/1993 | DE4135304A1 Process to regenerate an ionic exchanger during gas washing with a solvent - used to remove sulphuric acid from process substances |
| 04/29/1993 | DE4134907A1 Vorrichtung zum regenerieren von kohlenstoffhaltigen beladenen adsorbentien und verwendung dieser vorrichtung Apparatus for regenerating loaded carbonaceous adsorbents and use of this apparatus |
| 04/29/1993 | CA2121238A1 A method of removing nitrogen oxides from a gas flow by using a combustion exchanger |
| 04/29/1993 | CA2121133A1 Process for preparing hydroxylamine from nox-containing flue gases |
| 04/29/1993 | CA2120613A1 Biological filter |
| 04/28/1993 | EP0539121A1 Gas scrubbers |
| 04/28/1993 | EP0538669A1 Process for cleaning a crude gas or an exhaust gas containing hydrocarbon vapours with recovery of the hydrocarbons |
| 04/28/1993 | EP0538647A1 Method for recovery of ammonia from residues of stack gases |
| 04/28/1993 | CN2130808Y Oxygen generator using magnetic force to seperate air |
| 04/28/1993 | CN1071347A Enhanced membrane gas separations |
| 04/28/1993 | CN1071346A Dual product pressure swing adsorption process and system |
| 04/28/1993 | CN1071345A Dual product pressure swing adsorption and membrane operations |
| 04/27/1993 | US5206204 Absorbent for lower aldehydes |
| 04/27/1993 | US5206202 Catalyst device fabricated in situ and method of fabricating the device |
| 04/27/1993 | US5206196 Catalyst for purifying exhaust gas |
| 04/27/1993 | US5206003 Treating with catalyst comprising rhodium, palladium, manganese, or copper and oxides thereof |
| 04/27/1993 | US5206002 Process for removing nox and sox from exhaust gas |
| 04/27/1993 | US5205990 Separating oxygen |
| 04/27/1993 | US5205908 Purification of process gas from a partial combustion of black liquor |
| 04/27/1993 | US5205906 Process for the catalytic treatment of wastewater |
| 04/27/1993 | US5205843 Process for removing condensable components from gas streams |
| 04/27/1993 | US5205842 Two stage membrane dryer |
| 04/27/1993 | US5205841 Using membrane of palladium metal film and palladium-platinum black films |
| 04/27/1993 | US5205497 Fluorescent lamp crusher |
| 04/25/1993 | CA2081279A1 Process for supplying nitrogen from an on-site plant |
| 04/25/1993 | CA2081190A1 Process for the recovery of ammonia from flue gas residues |
| 04/22/1993 | DE4235084A1 Gas phase reactor housing - with progressively increasing flow area to reduce moisture condensation from gas flow and allow uniform conditioning, esp. of moisture sensitive biological substrates |
| 04/21/1993 | EP0538140A1 Process and device for gas purification using adsorption |
| 04/21/1993 | EP0537968A1 Nitrogen oxides decreasing apparatus for an internal combustion engine |
| 04/21/1993 | EP0537942A1 Method of treating the emissions of a lean-burn engine |
| 04/21/1993 | EP0537938A1 Process for monitoring and controlling an alkanolamine reaction process |
| 04/21/1993 | EP0537831A1 Process for producing a gas with high oxygen content |
| 04/21/1993 | EP0537694A1 Process for treating effluent from flue-gas desulfurization system and apparatus thereof |
| 04/21/1993 | EP0537616A1 Process for separating of fluoro-chloro-hydrocarbons from gas mixtures |
| 04/21/1993 | EP0537614A1 Dual product pressure swing adsorption and membran operations |
| 04/21/1993 | EP0537612A1 Dual product pressure swing adsorption process and system |
| 04/21/1993 | EP0537599A1 Membrane gas separation |
| 04/21/1993 | EP0537597A1 Low temperature pressure swing adsorption with refrigeration |
| 04/21/1993 | EP0537593A1 Recovery of carbon dioxide from combustion exhaust gas |
| 04/21/1993 | EP0537483A1 Air dryer for air pressure installation chargeable by compressor, especially air pressure brake systems for vehicles |
| 04/21/1993 | EP0537473A1 Process for the recovery of solvants from waste air or gas |
| 04/21/1993 | EP0537336A1 Process of making porous ceramic materials with controlled porosity |
| 04/21/1993 | EP0537294A1 Rotary adsorption assembly. |
| 04/21/1993 | EP0537219A1 Process and device for cleaning exhaust gases. |
| 04/21/1993 | EP0368978B1 Process and device for removal of h2s |
| 04/21/1993 | EP0354220B1 Multi-stage process for reducing the concentration of pollutants in an effluent |
| 04/21/1993 | CN1071160A System and device for increasing yield and production potential of urea reactors |
| 04/21/1993 | CN1071098A Process for increasing desulfation efficincy of combustion equipment |
| 04/21/1993 | CN1071097A Process for treatment of F-bearing waste gas |
| 04/21/1993 | CN1020331C Method and apparatus for wetting particles contained in gas flow |
| 04/20/1993 | US5204309 Catalysts for neutralizing air and gaseous exhausts |
| 04/20/1993 | US5204302 Catalyst composition and a method for its preparation |
| 04/20/1993 | US5204075 Process for the purification of the inert gases |
| 04/20/1993 | US5204003 Isotopes and other gaseous molecules; solute with repulsive or attractive behavior to solvent, and medium which admits solvent |
| 04/20/1993 | US5203893 Ozone filter unit for an electrophotographic apparatus |
| 04/20/1993 | US5203889 Process and system for fractionating gaseous mixtures |
| 04/20/1993 | US5203888 Pressure swing adsorption process with multiple desorption steps |
| 04/20/1993 | US5203887 Composite beds of conventional zeolite X and special lithium cation form of zeolite X; low cost |
| 04/20/1993 | US5203161 Method and arrangement for cooling air to gas turbine inlet |
| 04/20/1993 | CA1316311C Anisotropic membranes for gas separation |
| 04/18/1993 | CA2080661A1 Process for producing a gas with substantial oxygen content |
| 04/15/1993 | WO1993007366A1 Device for reducing the level of pollutants in exhaust emissions, in particular vehicle exhaust emissions |
| 04/15/1993 | WO1993007364A1 Exhaust gas catalytic converter |
| 04/15/1993 | WO1993007093A1 Method of removing volatile organic compounds from water |