| 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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| 09/21/1999 | US5953911 Regeneration of catalyst/absorber |
| 09/21/1999 | US5953908 Spontaneous combustion of hydrogen and air, preheating |
| 09/21/1999 | US5953907 Method of controlling an engine exhaust gas system and method of detecting deterioration of catalyst/adsorbing means |
| 09/21/1999 | CA2196418C Hydrogen sulfide scavenging process |
| 09/21/1999 | CA2065359C Process for incinerating solid wastes and a process for treating solid wastes and a process for treating gases generated through incineration of these wastes |
| 09/21/1999 | CA2015974C Means for separating out noxious substances from gases and exhaust gases, a process of making said means and a process employing said means |
| 09/16/1999 | WO1999046429A1 Modified platinum substrates for oxygen reduction |
| 09/16/1999 | WO1999046040A1 Catalyst for removing hydrocarbons in exhaust gas and method for clarification of exhaust gas |
| 09/16/1999 | WO1999046033A1 METHOD FOR REMOVING NOx |
| 09/16/1999 | WO1999046032A2 Process gas purification and fuel cell system |
| 09/16/1999 | WO1999046031A1 Decarbonating gas streams using zeolite adsorbents |
| 09/16/1999 | WO1999046030A1 Method for recovering and/or removing organic compounds from gas streams |
| 09/16/1999 | WO1999046029A1 Activated carbon air filters |
| 09/16/1999 | WO1999046028A1 Support element for fragile structures such as catalytic converters |
| 09/16/1999 | WO1999046027A1 Fluid flow inlet |
| 09/16/1999 | WO1999045971A1 Deodorant composition, deodorizer and filter each containing the same, and method of deodorization |
| 09/16/1999 | DE4025565C2 Controlled IC exhaust gas buffer and recycle system - improving cold start=up efficiency of catalytic converters using an engine management device |
| 09/16/1999 | DE19828884C1 High-velocity mass-exchange standpipes fitted in tray of gas-liquid contacting column |
| 09/16/1999 | DE19811257A1 Verfahren zur Steuerung der Abgasnachbehandlung eines DI-Otto- und Magermotors Method for controlling the exhaust gas treatment of a DI gasoline and lean-burn engine |
| 09/16/1999 | DE19810993A1 Foul biogas cooled to remove siloxanes by condensation prior to use |
| 09/16/1999 | DE19810742A1 Removing acid constituents from circulation and surplus gases of coke dry cooling apparatus |
| 09/16/1999 | DE19810449A1 Ionization device for improving room air quality |
| 09/16/1999 | DE19810260A1 Verfahren zum Beschichten der Strömungskanäle eines wabenförmigen Katalysatorkörpers mit einer Dispersionsbeschichtung A process for coating the flow channels of a honeycomb catalyst body with a dispersion coating |
| 09/16/1999 | DE19810150A1 High air permeability filter layer with adsorptive properties |
| 09/16/1999 | CA2323519A1 Modified platinum substrates for oxygen reduction |
| 09/16/1999 | CA2322871A1 Process gas purification and fuel cell system |
| 09/16/1999 | CA2322578A1 Process for removing nox |
| 09/16/1999 | CA2265422A1 Exhaust after-treatment system for automotive vehicle |
| 09/15/1999 | EP0942231A1 Deodorizing apparatus and deodorizing method |
| 09/15/1999 | EP0941763A1 Method for coating channels of honeycomb catalyst body using a coating dispersion |
| 09/15/1999 | EP0941759A1 Method for producing an exchanger and exchanger |
| 09/15/1999 | EP0941757A2 Device for purifying oxygen rich exhaust gas |
| 09/15/1999 | EP0941756A1 Stack device capable of removing dust particles, sulfur oxides and nitrogen oxides |
| 09/15/1999 | EP0941372A1 Oxidation-resistant metal foil, its use and method for its production |
| 09/15/1999 | EP0598916B1 Exhaust emission control system for internal combustion engine |
| 09/15/1999 | CN2338080Y Tower for removing sulfur and producing gypsum as by-product |
| 09/15/1999 | CN2338079Y Apparatus for filtering fume and purifying air |
| 09/15/1999 | CN1228753A Separation process in which membrane is used |
| 09/15/1999 | CN1228715A Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
| 09/15/1999 | CN1228351A Car tail-gas catalytic purifier with metal carrier |
| 09/15/1999 | CN1045077C Tail gas recovery method and device in production of silicon carbide fibre |
| 09/14/1999 | US5952557 Apparatus for analyzing a silicon compound gas for siloxane content |
| 09/14/1999 | US5951970 Drying composition comprising an odoriferous substance |
| 09/14/1999 | US5951961 Process for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a step for eliminating sulphur by cooling a gaseous effluent |
| 09/14/1999 | US5951957 Exposing to zeolite catalyst in the presence of water or water vapor at a temperature at which water or vapor is not sorbed by the zeolite |
| 09/14/1999 | US5951956 Efficient, simultaneous removal of carbon monoxide, nitrogen oxides and hydrocarbons under oxygen-rich conditions using a catalyst of improved durability containing platinum, and barium-lanthanum mixed oxide supported on a porous carrier |
| 09/14/1999 | US5951743 A self-cleaning device mounted in a conduit adjacent to an outlet end of the exhaust conduit and by dispensing a cleaning solvent to prevent the formation of solid deposits |
| 09/14/1999 | US5951742 Processes for the scrubbing of exhaust gas streams |
| 09/14/1999 | US5951741 Hydrocarbon vapor recovery processes and apparatus |
| 09/14/1999 | US5950454 Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing |
| 09/14/1999 | US5950422 Method and device for converting a pollutant in an exhaust gas in a catalytic converter |
| 09/14/1999 | US5950421 Using trap comprising porous gamma alumina support, tungsten oxide and precious metal comprising 0.5 to 4 wt. % platinum deposited on support, exposing said nitrogen oxide trap to engine exhaust gases, monitoring absorbed oxides, purging |
| 09/14/1999 | CA2120046C Separately removing mercaptans and hydrogen sulfide from gas streams |
| 09/14/1999 | CA2046281C A method for reducing the emission of organic products from incomplete combustion |
| 09/10/1999 | WO1999045555A1 Apparatus and procedure for elimination of water, air and other gases from the mixture of sulfurhexafluoride (sf6) with gas |
| 09/10/1999 | WO1999045172A1 Method and device for obtaining synthesis gas |
| 09/10/1999 | WO1999045036A1 Process for preparing polyolefins |
| 09/10/1999 | WO1999045035A1 Process for treating gas flows of polyolefin manufacturing |
| 09/10/1999 | WO1999044761A1 Method and device for processing refuse material batches and for converting carbon-containing refuse or raw materials into refuse material batches |
| 09/10/1999 | WO1999044734A1 Apparatus with packing through which media flow and method for operating an apparatus of this kind |
| 09/10/1999 | WO1999044725A1 Improvements in emissions control |
| 09/10/1999 | WO1999044724A1 Method for cleaning interior spaces or objects contaminated by harmful substances such as formaldehyde in particular |
| 09/10/1999 | WO1999044723A1 Method and apparatus for removal of sulphur-containing compounds from a gas |
| 09/10/1999 | WO1999044722A1 Apparatus for reducing contaminants in a pulsating exhaust gas |
| 09/10/1999 | WO1999031198A3 Plant for removing carbon dioxide from gases and method for the exploitation of said plant |
| 09/10/1999 | CA2322447A1 Process for treating gas flows of polyolefin manufacturing |
| 09/09/1999 | DE19859462A1 Catalytic converter decontamination method |
| 09/09/1999 | DE19813349C1 Method for preventing vapor emission from volatile liquid tanks |
| 09/09/1999 | DE19810275A1 Method for reduction of nitrogen oxide emissions from gas turbines |
| 09/09/1999 | DE19809479A1 Verfahren zum Sanieren von mit Schadstoffen, insbesondere mit Formaldehyd, belasteten Innenräumen bzw. Gegenständen Method for remediating with pollutants, especially formaldehyde, polluted indoor or objects |
| 09/09/1999 | DE19809200A1 Apparat mit durchströmter Schüttung und Verfahren zum Betreiben eines derartigen Apparats Apparatus with through-flow bed and method for operating such an apparatus |
| 09/09/1999 | DE19809068A1 Electrostatic air filter for removal of microorganisms |
| 09/09/1999 | DE19808895A1 Simple, cost-effective and environmentally-friendly purification of gas especially room air |
| 09/09/1999 | DE19808816A1 Detecting divergence from preset concentration limit of gas component e.g. pollutants in air or vapors, isotopes or solid particles in production process gas |
| 09/09/1999 | DE19808291A1 Process for heating regenerators when drying natural gas in glycol absorbers |
| 09/09/1999 | DE19808146A1 Demisting and heat recovery from flue gas e.g. gas-fired plant flue gas having high aggressive acid component content |
| 09/08/1999 | EP0940370A2 Process for treating by-product of optical fiber fabrication |
| 09/08/1999 | EP0940176A2 Catalyst support and catalyst and process for producing the same from a water in oil type emulsion |
| 09/08/1999 | EP0940175A1 Adsorbent with heterogeneous exchange degree and PSA process using the same |
| 09/08/1999 | EP0940174A2 Adsorbent for separating gases |
| 09/08/1999 | EP0940173A1 Heat-resistant hc adsorbent |
| 09/08/1999 | EP0940167A2 Plant for the treatment of articles in a particular gas atmosphere, which contains less oxygen than air, in which environmentally damaging process gases are generated |
| 09/08/1999 | EP0940166A1 Processing of residual material and fumes |
| 09/08/1999 | EP0940164A1 Process and apparatus for separating a gas mixture by adsorption |
| 09/08/1999 | EP0939669A1 Gas filter, method for producing a gas filter and use of said gas filter |
| 09/08/1999 | EP0785911B1 Biological waste fluid cleaner |
| 09/08/1999 | EP0698199B1 Method and device for introducing a liquid or gaseous treatment medium into a flue gas flow |
| 09/08/1999 | EP0636770B1 Exhaust gas cleaning device for an internal combustion engine |
| 09/08/1999 | CN1228118A Sulphur reducing bacterium and its use in biological desulphurisation processes |
| 09/08/1999 | CN1228038A Heat-resistant HC adsorbent |
| 09/08/1999 | CN1228036A Acid contacted enhanced adsorbent and/or catalyst and binder system |
| 09/08/1999 | CN1228034A Process for recovering processing liquids |
| 09/08/1999 | CN1227977A Electrochemical reactor cell for reacting oxygen-consuming gas with oxygen-containing gas |
| 09/08/1999 | CN1227976A Electrochemical process for oxidizing gas capable of reacting with oxygen |
| 09/08/1999 | CN1227909A Combined process and plant for producing compressed air and at least one air gas |
| 09/08/1999 | CN1227819A Apparatus for producing heat treatment atmospheres |
| 09/08/1999 | CN1227766A Flue gas treating process and system |
| 09/08/1999 | CN1227765A Desulfurizing dedusting system device for metal recovery |
| 09/07/1999 | USRE36290 Manufacture of high precision electronic components with ultra-high purity liquids |
| 09/07/1999 | US5948726 Adsorbent and/or catalyst and binder system and method of making therefor |