| 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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| 06/04/1997 | EP0640003A4 LOW NOx BURNER. |
| 06/04/1997 | EP0532730B1 Regenerative heat-exchanger |
| 06/04/1997 | EP0476135B1 Selective adsorbent for ammonuim ion and ammonia and preparation thereof |
| 06/04/1997 | CN2255308Y Gas vulcanizing-cleaning apparatus |
| 06/04/1997 | CN2255307Y Vulcanizing dust collector |
| 06/04/1997 | CN1151125A High-efficiency metal membrane getter element and process for making |
| 06/04/1997 | CN1150917A Integrated air separation process |
| 06/04/1997 | CN1035041C Filling material of tower for material and/or heat exchange |
| 06/03/1997 | US5636240 Air pollution control process and apparatus for glass furnace |
| 06/03/1997 | US5635438 Impregnating solid support; calcining |
| 06/03/1997 | US5635394 Biofiltration including bioreactor for reduction of organic contaminants |
| 06/03/1997 | US5635150 Sorption of acidic gases by solid residue from sugar refining |
| 06/03/1997 | US5635149 Wet scrubbing method and apparatus for removing sulfur oxides from combustion effluents |
| 06/03/1997 | US5635148 Porous inorganic substrate having a carbon layer modified by bonded metal active sites to serve as a scavanger of homogeneous impurities; semiconductor manufacturing |
| 06/03/1997 | US5635142 Absorbers with hot air intakes for desorption of nitrogen oxides and regeneration of absorbent |
| 06/03/1997 | US5635139 Method and apparatus for destruction of volatile organic compound flows of varying concentration |
| 06/03/1997 | US5635076 Treatment process for acrylonitrile plant wastewater streams |
| 06/03/1997 | US5635067 Using blends of polyimides, one of which contains a phenylindane diamine component; good selective permeability |
| 06/03/1997 | US5635039 Ion exchange membranes having improved water supply; high current density, |
| 06/03/1997 | US5634962 Method for removing hazardous gases from enclosed structures |
| 06/03/1997 | US5634950 Black liquor gasifier |
| 06/03/1997 | US5634517 Device for reducing the relative humidity of a flowing gas |
| 06/03/1997 | US5634354 Condensation of ethylene; removal of hydrogen from noncondensed gas by polymeric membrane permeation, adsorptive membrane permeation or pressure swing adsorption |
| 06/03/1997 | US5634332 Exhaust gas purification apparatus |
| 06/03/1997 | US5634329 Method of maintaining a nominal working temperature of flue gases in a PFBC power plant |
| 05/29/1997 | WO1997019454A1 Separation of gases |
| 05/29/1997 | WO1997019299A1 Filter assembly |
| 05/29/1997 | WO1997019262A1 Method and device for purifying exhaust gas of engine |
| 05/29/1997 | WO1997019261A1 Exhaust emission control device for internal combustion engines |
| 05/29/1997 | WO1997019196A1 Bioreactor process for the continuous removal of organic compounds from a vapor phase process stream |
| 05/29/1997 | WO1997019019A1 Method and catalyst for catalytically oxidising a low concentration of h2s in a gas to give sulphur |
| 05/29/1997 | WO1997018885A1 Waste gas treatment system and method |
| 05/29/1997 | CA2238323A1 Bioreactor process for the continuous removal of organic compounds from a vapor phase process stream |
| 05/29/1997 | CA2233592A1 Waste gas treatment system and method |
| 05/29/1997 | CA2206453A1 Separation of gases |
| 05/28/1997 | EP0775808A1 Process for manufacturing the body of a catalyst for the catalytic treatment of gases, catalytic body and catalyst |
| 05/28/1997 | EP0775518A2 Silicon rich zeolite |
| 05/28/1997 | EP0775515A1 Sulphur dioxide scrubbing |
| 05/28/1997 | EP0775514A1 Method for treating exhaust gases and foul water |
| 05/28/1997 | EP0775060A1 Device for removing noxious and aromatic matter from an air flow into the interior of a vehicle |
| 05/28/1997 | EP0775013A1 Method for the catalytic reaction of oxides of nitrogen in the exhaust from an internal-combustion engine |
| 05/28/1997 | EP0754163A4 Iron oxide/magnesium oxide composites and method for destruction of chlorinated hydrocarbons using such composites |
| 05/28/1997 | EP0722421A4 Low pressure formation of a urea hydrolysate for nitrogen oxides reduction |
| 05/28/1997 | EP0670750B1 Method for reducing atmospheric pollution |
| 05/28/1997 | EP0652800B1 Reducing n2o emissions |
| 05/28/1997 | EP0644795B1 A gas purifying method and apparatus |
| 05/28/1997 | EP0565533B1 PROCESS FOR SELECTIVELY SEPARATING HF FROM A GAS CONTAINING HF AND HCl AND POSSIBLY OTHER COMPONENTS |
| 05/28/1997 | DE19611395C1 A metal catalyst for the oxidation of hydrocarbon(s) |
| 05/28/1997 | CN1150792A Anaerobic removal of sulphur compounds from waste water |
| 05/28/1997 | CN1150788A Method of recovering oxygen-rich gas |
| 05/28/1997 | CN1150766A Chromium catalyst and catalytic oxidation process |
| 05/28/1997 | CN1150762A Method and apparatus for permeation separation of gas mixture |
| 05/28/1997 | CN1034989C Multistage membrane control system and process |
| 05/28/1997 | CN1034988C Process for removing and recoverying nitrogen oxide from nitric acid tail gas |
| 05/27/1997 | US5632964 Cleaning method for exhaust gas containing ammonia and silane |
| 05/27/1997 | US5632962 Process vessel |
| 05/27/1997 | US5632885 Hydrogen peroxide removal equipment capable of treating both waste water and waste gas |
| 05/27/1997 | US5632808 Canister |
| 05/27/1997 | US5632807 Device for the separation of elements of a gas mixture by adsorption |
| 05/27/1997 | US5632805 Semipermeable membrane dryer for air compressor system |
| 05/27/1997 | US5632804 Process and apparatus for separating constituents of a gas mixture by adsorption |
| 05/27/1997 | US5632803 Pressure swing adsorption |
| 05/27/1997 | US5632802 Apparatus and method of regenerating adsorbers for drying air |
| 05/27/1997 | US5632333 Temperature and humidity adjusting apparatus and control method therefor |
| 05/27/1997 | US5632162 Carbon monoxide production plant incorporating a cryogenic separation unit |
| 05/22/1997 | WO1997018423A1 Polymer enhanced glycol desiccant heat-pipe air dehumidifier preconditioning system |
| 05/22/1997 | WO1997018219A1 Purified tetraethoxysilane and method of purifying |
| 05/22/1997 | WO1997018029A1 Method and device for cleaning flue gases from furnaces |
| 05/22/1997 | WO1997018028A1 Gas treating process |
| 05/22/1997 | DE19652091A1 Aqueous solution of salt of thiosulphuric acid |
| 05/22/1997 | DE19647126A1 Mehrstufen-Blasensäule mit Lochplatten Multi-stage bubble column with perforated plates |
| 05/22/1997 | DE19603420C1 Composite membranes for separating water vapour from gas mixtures |
| 05/22/1997 | DE19542725A1 Reducing oxidation temperature of carbonisation gas constituents |
| 05/22/1997 | CA2230849A1 Gas treating process |
| 05/21/1997 | EP0774634A2 Gas manufacture |
| 05/21/1997 | EP0774450A1 Method for reducing formation of polychlorinated aromatic compounds during oxychlorination of C1-C3 hydrocarbons |
| 05/21/1997 | EP0774295A1 Packing element with high adsorption capacity for effluent gas purification device |
| 05/21/1997 | EP0774291A1 Process and apparatus for deodorising malodorous gaseous effluents, in particular waste air |
| 05/21/1997 | EP0774264A1 Air purifying agent and air purifying method |
| 05/21/1997 | EP0774054A1 Combatting air pollution |
| 05/21/1997 | EP0773828A1 Non-welded support plate member |
| 05/21/1997 | EP0773820A1 Method and apparatus for cleaning a vapour |
| 05/21/1997 | EP0753084A4 Electrolytic apparatus |
| 05/21/1997 | EP0553331B1 Device for regenerating contaminated carbon-containing adsorbents, and use thereof |
| 05/21/1997 | CN1150413A Process and filter for producing NO2-free nitrogen monoxide with sulphurous polymers |
| 05/21/1997 | CN1150240A Gas recovery unit |
| 05/21/1997 | CN1150117A Sulfur dioxide scrubbing with production of pure magnesium sulfite product |
| 05/21/1997 | CN1150059A Method and apparatus for eliminating acid mist and acid liquor created by ADC foaming agent condensation process |
| 05/21/1997 | CN1150058A Gas drier and use thereof |
| 05/21/1997 | CN1150057A Process and system for separation and recovery of perfluorocompound gases |
| 05/21/1997 | CN1150056A Process and device for preparation of flow which is ubstantially purified with respect to at least one of impurities oxygen and carbon monoxide |
| 05/21/1997 | CN1034913C Nitrogen adsorption with divalent cation exchanged lithium X-zeolite |
| 05/21/1997 | CN1034912C Process for production of gas containing large oxygen |
| 05/20/1997 | US5631327 Styrene and/or divinylbenzene copolymerized with amine functional vinylbenzenes, sorbents |
| 05/20/1997 | US5630991 Improved efficiency by adding ammonium ions to increase limestone dissolution rate |
| 05/20/1997 | US5630970 Exposing to sorbent vapor, such as propane or butane, thereby reopening the microvoids that make up the free volume |
| 05/20/1997 | US5630866 Static electricity exhaust treatment device |
| 05/20/1997 | US5630865 Cold gas dryer for compressed natural gas |
| 05/20/1997 | US5630328 Refrigeration unit for chilling compressed natural gas before and during dispensing to vehicle fuel tanks |
| 05/20/1997 | CA2097116C Sorbent for treatment of effluent gas stream |