| 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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| 05/23/1991 | CA2026752A1 Three-way catalyst for automotive emission control |
| 05/23/1991 | CA2026608A1 Three-way catalyst for automotive emission control |
| 05/23/1991 | CA2026405A1 Three-way catalyst for automotive emission control |
| 05/22/1991 | EP0428414A1 Air conditioning method and apparatus |
| 05/22/1991 | EP0428052A2 Gas separation by adsorbent membranes |
| 05/22/1991 | EP0428037A1 Filter for eliminating pollutants |
| 05/22/1991 | EP0427970A2 Process for reducing NOx in an exhaust gas using a precious metal/ZSM-5 catalyst |
| 05/22/1991 | EP0427897A1 Separation of gases |
| 05/22/1991 | EP0407446A4 No reduction using sublimation of cyanuric acid |
| 05/22/1991 | EP0398952A4 Composition, method and apparatus for removal of hydrogen sulfide |
| 05/22/1991 | EP0396684A4 Cross-flow filtration device and method of making |
| 05/22/1991 | CN1051518A Over adsorption recover system of non-constant pressure adsorption |
| 05/22/1991 | CN1051516A Multiple-tube filling tower |
| 05/21/1991 | WO1991007219A1 Method in cleaning flue gas in a pfbc plant including a gas turbine driven thereby |
| 05/21/1991 | US5017544 Aluminum oxide, heating, diffusion, catalytic converter |
| 05/21/1991 | US5017538 Catalyst for purifying exhaust gas and a method of producing the same |
| 05/21/1991 | US5017357 Catalytic process for oxidation of carbon monoxide |
| 05/21/1991 | US5017351 Air treatment, circulation |
| 05/21/1991 | US5017350 Sorption, desulfurization |
| 05/21/1991 | US5017349 Method for desulfurization of flue gases |
| 05/21/1991 | US5017348 Forming nitric and nitrous acids |
| 05/21/1991 | US5017347 Pollution control |
| 05/21/1991 | US5017199 Spent solvent recovery in circuit processing |
| 05/21/1991 | US5016628 Rebreathing gas |
| 05/21/1991 | CA2069083A1 Method in cleaning flue gas in a pfbc plant including a gas turbine driven thereby |
| 05/21/1991 | CA2030253A1 Process for the treatment of hot waste gas containing hydrogen chloride |
| 05/16/1991 | WO1991006793A1 Emission control device |
| 05/16/1991 | WO1991006691A1 Solid state oxygen compressor |
| 05/16/1991 | WO1991006506A1 System for the efficient reduction of nitrogen oxides in an effluent |
| 05/16/1991 | WO1991006362A1 Apparatus and method for sorbing components from a gas |
| 05/16/1991 | WO1991006361A1 A method of purifying air from combustible pollutants and an apparatus for performing the method |
| 05/16/1991 | CA2067166A1 A method of purifying air from combustible pollutants and an apparatus for performing the method |
| 05/16/1991 | CA2044242A1 Sorbing apparatus with guard bed |
| 05/15/1991 | EP0427620A1 Process for the separation of a gas from a gas mixture using metal complexes of cyclic polynitrogenated derivatives |
| 05/15/1991 | EP0427503A1 Method and Apparatus for treating a waste gas |
| 05/15/1991 | EP0427494A2 Staged three-way conversion catalyst and method for using the same |
| 05/15/1991 | EP0427493A2 Three way conversion catalyst including a ceria-containing zirconia support |
| 05/15/1991 | EP0427344A1 Process and apparatus for effecting chemical and/or physical reactions |
| 05/15/1991 | EP0426978A1 Process for the selective, non-catalytic reduction of the emissions from oil fired boiler plants |
| 05/15/1991 | EP0426937A1 Gas recovery system with excessively re-adsorbable process in pressure swing adsortion device |
| 05/15/1991 | EP0426885A1 CO2 absorption means |
| 05/15/1991 | EP0426757A1 Fiber bed filter |
| 05/15/1991 | EP0397856A4 Method and apparatus for purifying air |
| 05/15/1991 | CA2029331A1 Filter for the separation of impurities or contaminants |
| 05/14/1991 | US5015617 Oxidation catalyst for automobiles, containing cerium oxide and zirconium oxide |
| 05/14/1991 | US5015451 Process, filter and device for making available high-quality breathing air |
| 05/14/1991 | US5015443 Pollution control for waste gases, irradiation with electron beams |
| 05/14/1991 | US5015365 Purification of air stream to remove solvents including halogenated hydrocarbons, by passing a stream through active carbon beds, regeneration, condensation |
| 05/14/1991 | US5015362 Catalytic conversion of NOx over carbonaceous particles |
| 05/14/1991 | US5015272 Separation of hydrogen and/or helium, adsorption and desorption by depressurization, countercurrent flow, purging |
| 05/14/1991 | US5015271 Separation of gas mixtures by vacuum swing adsorption (VSA) in a two-adsorber system |
| 05/14/1991 | US5015269 Semipermeable membranes, hollow fibers in foamed plastics for gas separation |
| 05/14/1991 | US5014740 Distributor for packed tower |
| 05/10/1991 | CA2029455A1 Process for the separation of a gas from a gas mixture using metal complexes of cyclic polynitrogenated derivatives |
| 05/09/1991 | CA2027422A1 Three way conversion catalyst including a ceria-containing zirconia support |
| 05/09/1991 | CA2027329A1 Staged three-way conversion catalyst and method of using the same |
| 05/08/1991 | WO1991006363A1 Process for removing condensable components from gas streams |
| 05/08/1991 | EP0426642A2 System and method for separating a portion of a gas from a mixture of gases |
| 05/08/1991 | EP0426216A1 Method for processing residual baths from the photographic and photochemical industries |
| 05/08/1991 | EP0426215A1 Method for purifying flue gases |
| 05/08/1991 | EP0426160A1 Decontamination system |
| 05/08/1991 | EP0426118A2 Sulfonated hexafluoro bis-A polysulfone membranes and process for fluid separations |
| 05/08/1991 | EP0426054A1 Method of removing sulphur dioxide and if applicable nitrogen oxides and other impurities from the exhaust gas of waste incineration |
| 05/08/1991 | EP0425984A1 Sorption of trialkyl arsines |
| 05/08/1991 | EP0425833A1 Material, structure, filter and catalytic converter |
| 05/08/1991 | EP0425488A1 Pollution control catalyst for minimizing h2s emissions. |
| 05/08/1991 | DE3936781A1 Pressure cycling gas adsorption system has selective throttles - in individual prod. gas outlets to common tank-supply conduit |
| 05/08/1991 | DE3936745A1 Oxidative decomposition of organic gases and vapours - by passing gas mixt. contg. oxygen and organic cpds. through fluidised bed of catalyst |
| 05/08/1991 | DE3936744A1 Catalytic oxidative decomposition of halogenated organic cpds. - by passing cpd. mixed with oxygen and gas which burns in oxygen through fluidised bed of catalyst |
| 05/08/1991 | DE3936743A1 Oxidative decomposition of halogenated organic cpds. - by passing gas mixt. contg. oxygen and halogenated cpds. through fluidised bed of catalyst, pref. supported noble metal |
| 05/08/1991 | DE3936422A1 Heat loss insulator for active charcoal filters - PTFE coated glass fabric pad, filled with needled mat has closure elements permitting easy removal and replacement of insulation |
| 05/08/1991 | CA2002476A1 Gas scrubbing process |
| 05/07/1991 | US5013705 Platinum-free three-way catalyst |
| 05/07/1991 | US5013491 Apparatus for distributing liquid in gas-liquid contact apparatus, and method for making it |
| 05/07/1991 | US5013450 Method and solid material body for the purification of fluids such as water, aqueous fluids and liquid fuels |
| 05/07/1991 | US5013437 Hollow fiber membrane fluid separation device adapted for boreside feed which contains multiple concentric stages |
| 05/07/1991 | US5013336 Method and apparatus for emission control |
| 05/07/1991 | US5013335 Process for sequestering ammonia and the odor associated therewith |
| 05/07/1991 | US5013334 Methane purification by pressure swing adsorption |
| 05/07/1991 | US5013331 Permeator with selectable flow rates |
| 05/07/1991 | CA2002371A1 Separation of gases |
| 05/07/1991 | CA1283875C Method and device for purifying off-gases |
| 05/04/1991 | CA2029010A1 System for the efficient reduction of nitrogen oxides in an effluent |
| 05/03/1991 | CA2023010A1 Sorption of trialkyl arsines |
| 05/02/1991 | WO1991005597A1 Method and apparatus for the separation of one or more agents |
| 05/02/1991 | EP0425468A1 Process for removal of nitrogen oxides from gases |
| 05/02/1991 | EP0424966A1 Exhaust gas purification device in variable combination of absorbent and catalyst according to gas temperature |
| 05/02/1991 | EP0424895A2 Method for introducing and for dosing a liquid treatment medium in combustion processes |
| 05/02/1991 | EP0424894A1 Method of supplying a treating agent into an exhaust stream of combustion processes |
| 05/02/1991 | EP0424893A1 Method of supplying a treating agent into an exhaust gas stream of combustion processes |
| 05/02/1991 | EP0424864A2 Power plant |
| 05/02/1991 | EP0424845A2 Deodorizing and cleaning compositions and method |
| 05/02/1991 | EP0424669A2 Process for obtaining pure hydrogen chloride from flue gases containing this compound |
| 05/02/1991 | EP0424377A1 Reduction of the ignition temperature of diesel soot |
| 05/02/1991 | DE4031120A1 Membrane micro-filters for treating liquids and/or gases - used in the form of particles, chips of fibre obtd. by disintegrating scrap material from prodn. of membrane micro-filters |
| 05/02/1991 | DE3938507C1 Mass for biological waste plant - maintained by pairs of parallel worms which travel crosswise and lengthwise on crab |
| 05/02/1991 | CA2022454A1 Material, structure, filter and catalytic converter |
| 05/01/1991 | WO1991006508A1 Catalyst for nitrogen oxide decomposition and method of cleaning nitrogen oxide-containing exhaust gas |
| 05/01/1991 | CA2029001A1 Sulfonated hexafluoro bis-a polysulfone membranes and process for fluid separations |
| 05/01/1991 | CA2028744A1 System and method for separating a portion of a gas from a mixture of gases |