| 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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| 09/13/1989 | EP0332390A2 Heaterless adsorption system for combined purification and fractionation of air |
| 09/13/1989 | EP0332373A2 Process for removing sulfur moieties from claus tail-gas |
| 09/13/1989 | EP0332324A2 Desulphurisation |
| 09/13/1989 | EP0331885A1 Exhaust gas filter |
| 09/13/1989 | EP0331788A1 Tertiary alkanolamine absorbent containing an ethyleneamine promoter and its method of use |
| 09/13/1989 | EP0331702A1 Apparatus for drying a wet gas |
| 09/13/1989 | CN1035555A Deodorizing device in refrigerator |
| 09/13/1989 | CN1035443A Process for removing h2s from gas stream |
| 09/13/1989 | CN1035442A Improved pressure swing adsorption process and system for gas separation |
| 09/13/1989 | CN1035440A Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
| 09/13/1989 | CN1035438A Deodorization utensil |
| 09/12/1989 | US4866019 Catalyst composition and absorbent which contain an anionic clay |
| 09/12/1989 | US4865828 Removal of acid gases in dry scrubbing of hot gases |
| 09/12/1989 | US4865827 Process for removing nitrogen oxides |
| 09/12/1989 | US4865826 Using regenerable sorbent |
| 09/12/1989 | US4865817 Gas reacting apparatus |
| 09/12/1989 | US4865815 In-line compressed air carbon monoxide filter |
| 09/12/1989 | US4865736 In an impermeable sheath fecilitating flow parallel to the axis of fiber array; eliminates bypass flow |
| 09/12/1989 | US4865630 Porous membrane for use in reaction process |
| 09/12/1989 | US4864830 Air conditioning process and apparatus |
| 09/12/1989 | CA1259295A1 Filter element, filter, and method for removing odors from indoor air |
| 09/12/1989 | CA1259271A1 Gas treatment process |
| 09/12/1989 | CA1259270A1 Gas treatment process |
| 09/12/1989 | CA1259166A1 Process for drilling geothermal wells with removal of h.sub.2s |
| 09/12/1989 | CA1259165A1 Process for removal of pollutants from waste gas emissions |
| 09/08/1989 | WO1989007982A1 Process and injector for reducing the concentration of pollutants in an effluent |
| 09/08/1989 | WO1989007979A1 Carbon dioxide removal using aminated carbon molecular sieves |
| 09/08/1989 | WO1989007975A1 Process and installation for denitrifying furnace flue gases |
| 09/08/1989 | WO1989007974A1 Method for cleaning gases |
| 09/08/1989 | WO1989007973A1 Process for purifying aqueous buffer solutions |
| 09/07/1989 | DE3805928A1 Air drier |
| 09/06/1989 | EP0331611A2 Apparatus for purifying objects |
| 09/06/1989 | EP0331244A1 Process for the continuous dry-slaking of lime |
| 09/06/1989 | EP0331228A2 Process for removing H2S from a gas stream |
| 09/06/1989 | EP0330864A2 Device for controlling the evaporation of fuel in motor vehicles |
| 09/06/1989 | EP0257031B1 Use of catalysts for removing nitrogen oxide from exhaust gases |
| 09/06/1989 | CN1035272A Method of producting active sodium carbonate |
| 09/06/1989 | CN1035254A Process for producing desulfurization agent |
| 09/06/1989 | CN1035253A Method of producing adsorbent for separation and recovery of co |
| 09/05/1989 | US4863895 Honeycomb body as catalyst support for cleaning the exhaust of internal combustion engines |
| 09/05/1989 | US4863705 Heterocyclic nitrogen compound, air pollution control |
| 09/05/1989 | US4863704 Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt |
| 09/05/1989 | US4863702 Vaporization, detoxification |
| 09/05/1989 | US4863687 Method for removing malodorous or toxic gases from an air stream |
| 09/05/1989 | US4863496 Reactive posttreatment for gas separation membranes |
| 09/05/1989 | US4863495 Process for removing volatile organic compounds from air streams |
| 09/05/1989 | US4863494 Divinylbenzene polymer spheres |
| 09/05/1989 | US4863492 Permeable membranes, compression |
| 09/05/1989 | CA1259044A1 Biological contact gas scrubber for waste gas purification |
| 09/05/1989 | CA1259039A1 Selective adsorption and recovery of organic gases using ion-exchanged faujasite |
| 09/05/1989 | CA1259037A1 Six adsorber pressure swing adsorption process |
| 09/05/1989 | CA1258961A1 PROCESS FOR PRODUCING .alpha.-FORM GYPSUM HEMIHYDRATE |
| 08/31/1989 | DE3841787A1 Process for removing hydrogen sulphide from industrial gases |
| 08/31/1989 | DE3824641C1 Process for cleaning bottles and apparatus for carrying out such a process |
| 08/31/1989 | DE3805045A1 Apparatus for separating out pollutants and/or valuable materials from gaseous or vaporous media |
| 08/30/1989 | EP0330095A1 Automated preparative gas chromatograph |
| 08/30/1989 | EP0329962A2 Method of separating organic compounds from air/permanent gas mixtures |
| 08/30/1989 | EP0329818A2 Electrostatic filter for diesel particles |
| 08/30/1989 | EP0329690A1 Reactor with moving layer for the removal of undesirable gaseous components from gases. |
| 08/30/1989 | CN1035095A Process for eliminating organic odors and compositions for use therein |
| 08/30/1989 | CN1035063A Catalyst for treatment of flue gas, and process for treatment of flue gas |
| 08/30/1989 | CN1035060A Method of treating waste gas by irradiation with electron beam |
| 08/29/1989 | US4861578 Method of treating waste gas |
| 08/29/1989 | US4861577 Method for removing the sulphur content of a weak gas containing sulfur dioxide |
| 08/29/1989 | US4861568 Calcium hydroxide, sugar |
| 08/29/1989 | US4861567 Methods of reducing NOx and SOx emissions from combustion systems |
| 08/29/1989 | US4861566 Passing gas with controlled water content and temperature over bed of zinc oxide absorbent |
| 08/29/1989 | US4861558 Tank of aqueous absorbent, cyclone separator, oxidizing gas |
| 08/29/1989 | US4861486 Immobilized inorganic diffusion barriers and the use thereof in the separation of small molecular species from a solution |
| 08/29/1989 | US4861361 Cryogenic distillation to separate, pressure swing adsorption, gas diffusion zone |
| 08/29/1989 | US4861354 Removing pollutant |
| 08/29/1989 | US4861351 Production of hydrogen and carbon monoxide |
| 08/29/1989 | US4860670 Method and apparatus for the cleaning of flue gas and the recovery of heat from same |
| 08/29/1989 | US4860548 Air conditioning process and apparatus therefor |
| 08/29/1989 | US4860547 Process and apparatus for extracting liquids from aggregates and from gas/vapor mixtures |
| 08/24/1989 | WO1989007576A1 Process and apparatus for desulfurization |
| 08/24/1989 | WO1989007485A1 Shaft with a moving bed of pourable material |
| 08/24/1989 | DE3804722A1 Method, apparatus and catalyst for eliminating an organic compound from an exhaust gas |
| 08/23/1989 | EP0329643A1 Process for deodorizing and purifying waste air and waste gases |
| 08/23/1989 | EP0329601A1 Method and installation for removing dissolved oxygen from chlorinated water, particularly sea water, by means of an oxygen-poor stripping gas |
| 08/23/1989 | EP0329385A2 Industrial process for the separation and recovery of chlorine |
| 08/23/1989 | EP0329302A2 Catalyst for purification of exhaust gas and process for production thereof |
| 08/23/1989 | EP0329301A2 Desulphurisation |
| 08/23/1989 | EP0329149A2 Process for eliminating n-dopant impurities from a liquid or gaseous material obtained during the gas phase separation of silicium |
| 08/23/1989 | EP0328874A2 Process and plant for dry purification of waste gas containing sour pollutants |
| 08/23/1989 | EP0328820A2 Treatment of gas streams comprising hydrogen sulphide |
| 08/23/1989 | EP0328786A1 Splash plate liquid distributor |
| 08/23/1989 | EP0328782A1 Method for purification of air |
| 08/23/1989 | EP0328777A1 Process for removol of nitrogen oxides from waste gases |
| 08/23/1989 | EP0328758A1 Process and device for the biological cleaning of waste gas |
| 08/23/1989 | EP0328708A1 Process for cleaning exhaust air |
| 08/23/1989 | CN1005018B Processing method to eliminate the oxide of nitrogen and so2 from flue gas |
| 08/22/1989 | USRE33031 Fertilizers from wastes; pollution control |
| 08/22/1989 | US4859588 Desulfurization of gases, thiobacillus bacteria |
| 08/22/1989 | US4859440 Method of treating flue gases and combustion residues |
| 08/22/1989 | US4859439 Catalyst and a method for denitrizing nitrogen oxides contained in waste gases |
| 08/22/1989 | US4859438 Method for separation of impurities from flowing gas |
| 08/22/1989 | US4859437 Process for the removal of H2S from fluid streams using a water soluble polymeric chelate of an oxidizing polyvalent metal |
| 08/22/1989 | US4859436 H2 S removal process and composition |
| 08/22/1989 | US4859433 Process for treating automotive exhaust gases using monolith washcoat having optimum pore structure |