| 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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| 12/22/1998 | US5851293 Flow-stabilized wet scrubber system for treatment of process gases from semiconductor manufacturing operations |
| 12/22/1998 | US5851270 Low pressure gas source and dispensing apparatus with enhanced diffusive/extractive means |
| 12/22/1998 | US5851269 Air desiccant canister for an air brake system |
| 12/22/1998 | US5851267 Seal arrangement for rapid interconnection or axially arranged separation elements |
| 12/22/1998 | US5851266 Hybrid solid electrolyte ionic conductor systems for purifying inert gases |
| 12/22/1998 | US5851265 Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
| 12/22/1998 | US5851256 Method for reducing NOx emissions from a regenerative glass furnace |
| 12/22/1998 | US5850833 Apparatus for supplying a low oxygen gas mixture to a user |
| 12/22/1998 | US5850735 Method for purifying exhaust gas of an internal combustion engine |
| 12/22/1998 | CA2118572C Serial flow pressure swing adsorption process for gas separation |
| 12/22/1998 | CA2014559C Catalysts for oxidation of carbon monoxide |
| 12/20/1998 | CA2241119A1 Process for removing nitrogen from flue gases |
| 12/17/1998 | WO1998057165A1 Acoustic gas concentration sensor and control for oxygen concentrator |
| 12/17/1998 | WO1998057051A1 Catalytic converter and method for purifying an exhaust gas flow from a small engine in an unregulated exhaust system |
| 12/17/1998 | WO1998057050A1 Radial catalytic converter, in particular for small engines |
| 12/17/1998 | WO1998057049A1 Pollutant reduction catalyst in thermal oxidizer |
| 12/17/1998 | WO1998056711A1 Nitrogen oxide scrubbing with alkaline peroxide solution |
| 12/17/1998 | WO1998056503A1 Metallic catalyst support for purifying an exhaust gas current, especially of a small engine |
| 12/17/1998 | WO1998056492A1 Storage catalyst |
| 12/17/1998 | WO1998056491A1 A combined concentrator-oxidation system for voc emission control |
| 12/17/1998 | WO1998056490A1 Improvements to methods for desulphurizing fumes by wet process |
| 12/17/1998 | WO1998056489A1 Ionisation filter for purifying air |
| 12/17/1998 | WO1998056488A1 Closed-loop feedback control for oxygen concentrator |
| 12/17/1998 | WO1998056464A1 Method for treating residues resulting from the purification of garbage and/or industrial waste incineration fumes |
| 12/17/1998 | WO1998038222A3 Cyclodextrin modifications with molecular channels, method for the production and use thereof |
| 12/17/1998 | DE19725030A1 Ionising filter for cleaning air |
| 12/17/1998 | CA2286856A1 Ionization filter for purifying air |
| 12/16/1998 | EP0884459A2 Coated catalytic converter substrates and mounts |
| 12/16/1998 | EP0884458A2 Internal combustion engine with NOx absorbent catalyst |
| 12/16/1998 | EP0884275A2 Process and apparatus for producing a gaseous product |
| 12/16/1998 | EP0884094A2 A method of desulphurizing gases, such as flue gases from combustion plants |
| 12/16/1998 | EP0884093A1 Process and apparatus for recovering sulphur compounds from flue gas |
| 12/16/1998 | EP0884092A1 Process for removing sulfur dioxide from an exhaust gas |
| 12/16/1998 | EP0884091A2 Heat regenerated adsorber-dryer with heat recovery |
| 12/16/1998 | EP0884090A2 Heat regenerated adsorber-dryer for gases |
| 12/16/1998 | EP0884089A1 Device and process for the separation of gas mixtures with pressure swing adsorption |
| 12/16/1998 | EP0884088A1 Installation and method for the separation of a gas mixture by pressure swing adsorption |
| 12/16/1998 | EP0884087A2 Pressure swing adsorption process with a single adsorbent bed |
| 12/16/1998 | EP0884086A2 Process and installation for air separation by pressure swing adsorption |
| 12/16/1998 | EP0884085A1 Method and apparatus for regenerating a moist adsorption medium |
| 12/16/1998 | EP0884084A2 Process for eliminating nitrogen oxides from gases |
| 12/16/1998 | EP0883738A1 Method and apparatus for injecting hydrogen into a catalytic converter |
| 12/16/1998 | EP0883434A2 Method and device for purifying exhaust gases |
| 12/16/1998 | EP0883433A1 Desulfurizing method and apparatus by irradiation of electron beam |
| 12/16/1998 | EP0883432A1 Process for the recovery of volatile low molecular compounds |
| 12/16/1998 | EP0832021B1 Device for the time-dependent control of the duration of regeneration of an air drier |
| 12/16/1998 | EP0819233B1 Process and plant for the thermal treatment of waste material |
| 12/16/1998 | EP0665819B1 Odour controlled waste water treatment system |
| 12/16/1998 | EP0627953B1 fluid fractionator |
| 12/16/1998 | EP0523194B2 Charge/purge control system for air dryer with humidity control |
| 12/16/1998 | CN2300445Y Desulfuration dust remover |
| 12/16/1998 | CN2300444Y High-effect multi-pipe semiwet type padding desulfuration dust remover |
| 12/16/1998 | CN1202220A Exhaust emission control device for IC engines |
| 12/16/1998 | CN1202219A Method and device for purifying exhaust gas of engine |
| 12/16/1998 | CN1201709A Externally cooling constant pressure ammonia recovering method and apparatus therefor |
| 12/16/1998 | CN1201708A Process and apparatus for gas separation |
| 12/16/1998 | CN1041172C Method and device for denitration of exhaust gas |
| 12/15/1998 | US5849980 Low alkaline inverted in-situ crystallized zeolite membrane |
| 12/15/1998 | US5849661 Automotive exhaust catalyst |
| 12/15/1998 | US5849660 Catalyst for purifying exhaust gas |
| 12/15/1998 | US5849659 Exhaust gas purifying catalyst |
| 12/15/1998 | US5849593 Method for metering a reagent into a flowing medium |
| 12/15/1998 | US5849256 Method for oxidizing carbon monoxide in a gas stream containing oxidizable sulphur compounds |
| 12/15/1998 | US5849255 Treatment of diesel exhaust gas using zeolite catalyst |
| 12/15/1998 | US5849254 Method for purifying exhaust gases with two layer catalyst in oxygen-rich atmosphere |
| 12/15/1998 | US5849251 Catalytic converter for a tailpipe including apparatus for relieving back pressure |
| 12/15/1998 | US5849250 Auxiliary catalytic converter having a back pressure relief device |
| 12/15/1998 | US5849235 Catalyst retaining apparatus and method of making and using same |
| 12/15/1998 | US5849059 Method for reducing NOx emissions from a regenerative glass furnace |
| 12/15/1998 | US5848960 Process for vitrifying residues from flue gas cleaning |
| 12/15/1998 | US5848530 Device for detecting deterioration of catalytic converter for cleaning exhaust gases |
| 12/15/1998 | CA2106929C Purge effluent repressurized adsorption process |
| 12/15/1998 | CA2021702C Improved process for recovering hydrocarbons from air-hydrocarbon vapor mixtures |
| 12/15/1998 | CA1340230C Process for removing heavy metal compounds from the filtrer dust from trash incinerators, flue gas dust precipitators and gas-cleaning units |
| 12/13/1998 | CA2240765A1 Process for removing sulfur dioxide from flue gasses |
| 12/13/1998 | CA2240342A1 Process and apparatus for recovering sulfur compounds from flue gas |
| 12/12/1998 | CA2240084A1 Process and plant for the separation of air by adsorption |
| 12/11/1998 | WO1999030809A1 Method and device for treating exhaust gas |
| 12/10/1998 | WO1998055803A1 Method for charging the combustion unit of a coal-fuelled power station |
| 12/10/1998 | WO1998055742A1 PROCESS FOR REGENERATING AN NOx ACCUMULATOR CATALYTIC CONVERTER |
| 12/10/1998 | WO1998055685A1 System and method for paper mill sulfur recovery and odor control |
| 12/10/1998 | WO1998055399A1 Method for preparing compositions containing essentially an absorbent anhydrous alkaline metal carbonate |
| 12/10/1998 | WO1998055394A1 Process for generating power and/or heat comprising a mixed conducting membrane reactor |
| 12/10/1998 | WO1998055393A1 Method for performing catalytic or non-catalytic processes, with enriched oxygen as one of the reactants |
| 12/10/1998 | WO1998055392A1 Acid gas solvent filtration system |
| 12/10/1998 | WO1998055230A1 Method for renewed activation of honeycomb-shaped catalyst elements for denitrating flue gases |
| 12/10/1998 | WO1998055223A1 Heat-resistant hc adsorbent |
| 12/10/1998 | WO1998055222A1 Heat-resistant hc adsorbent |
| 12/10/1998 | WO1998055211A1 A compound for removing harmful components from cigarette smoking and a method for preparing the compound |
| 12/10/1998 | WO1998055210A1 Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase |
| 12/10/1998 | WO1998055209A1 Method and system for selective removal of contamination from gas flows |
| 12/10/1998 | WO1998055208A1 Process for generating power including a combustion process |
| 12/10/1998 | WO1998055207A1 Process and plant for the separation of nitrogen and oxygen from gases rich of nitrogen and/or oxygen |
| 12/10/1998 | WO1998055206A1 Method of separating and selectively removing hydrogen contaminant from hydrogen-containing process streams and compositions useful therefor |
| 12/10/1998 | WO1998055204A2 System for quenching and scrubbing and cooling and washing hot partial oxidation gas |
| 12/10/1998 | DE19749713A1 Flue gas desulphurisation for power plants burning fossil fuels |
| 12/10/1998 | DE19747670C1 Exhaust gas cleaning system for internal combustion engine |
| 12/10/1998 | DE19742762C1 Exhaust gas system for internal combustion engine |
| 12/10/1998 | DE19741120A1 Operation of dual circuit gas scrubber used in flue gas desulphurisation |
| 12/10/1998 | DE19724289A1 Katalysator zur Reinigung eines Abgasstromes, insbesondere von einem Kleinmotor A catalyst for purifying an exhaust gas stream, in particular of a small engine |