| 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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| 04/07/1998 | US5736115 Energy efficient absorption of carbon dioxide with aqueous solution of 3-(dimethylamino)-1,2-propanediol, flashing to regenerate absorbent for reuse |
| 04/07/1998 | US5736114 Spinel-based catalysts for reducing exhaust emissions of NOx |
| 04/07/1998 | US5736109 Intumescent sheet material and paste with organic binder |
| 04/07/1998 | US5736017 Solid high polymer electrolytic module and method of manufacturing the same |
| 04/07/1998 | US5735938 Method for production of nitrogen using oxygen selective adsorbents |
| 04/07/1998 | US5735936 Removal of hydrogen sulfide and/or carbon dioxide using a nonhydrocarbon organic solvent which is recycled |
| 04/07/1998 | US5735332 Method for making a ceramic metal composite |
| 04/07/1998 | US5735224 Thermal dechlorinating apparatus and method for collected ash |
| 04/07/1998 | US5735119 Exhaust purification device of an engine |
| 04/07/1998 | CA2096328C Catalyst for purifying exhaust gas |
| 04/07/1998 | CA2040414C Disposable oxide carrier for scavenging hydrogen sulfide |
| 04/02/1998 | WO1998013649A1 A METHOD AND AN APPARATUS FOR INJECTION OF NOx REDUCING AGENT |
| 04/02/1998 | WO1998013590A1 Honeycomb body with reduced heat conductivity in inflow and outflow areas |
| 04/02/1998 | WO1998013139A1 Catalyst composition containing oxygen storage components |
| 04/02/1998 | WO1998013129A1 Tube plate module |
| 04/02/1998 | WO1998013128A1 PROCESS FOR REMOVING NOx FROM EXHAUST FUMES |
| 04/02/1998 | WO1998013127A1 Device and method for gas removal |
| 04/02/1998 | WO1998013126A1 Process for oxidizing magnesium sulfite or magnesium hydrogen sulfite |
| 04/02/1998 | WO1998013125A1 High temperature gas purification apparatus |
| 04/02/1998 | WO1998013124A1 Separation of gaseous components from a gas stream with a liquid absorbent |
| 04/02/1998 | DE4445972C2 Kompressoranlage zum Erzeugen trockener Druckluft Compressor unit for generating compressed dry air |
| 04/02/1998 | DE19742705A1 Exhaust gas purification catalyst |
| 04/02/1998 | DE19649663C1 Sulphur di:oxide removal from cement-making plant off-gases |
| 04/02/1998 | DE19640604A1 Apparatus for purifying exhaust gases |
| 04/02/1998 | DE19640161A1 NOx-Abgasreinigungsverfahren NOx emission control method |
| 04/02/1998 | DE19639965A1 Separation of components of a gas mixture through membranes |
| 04/02/1998 | DE19639964A1 Hohlfaserplattenmodul und Verfahren zu seiner Herstellung Hollow fiber board module and method for its preparation |
| 04/02/1998 | DE19639633A1 Wabenkörper mit verringerter Wärmeleitfähigkeit im Eintritts- und Austrittsbereich Honeycombs with reduced thermal conductivity in the entrance and exit area |
| 04/02/1998 | CA2264832A1 A method and an apparatus for injection of nox reducing agent |
| 04/01/1998 | EP0832856A2 Process for indirectly heated drying material, in particular sewage sludge |
| 04/01/1998 | EP0832688A1 Exhaust gas purifying catalyst and exhaust gas purifying method |
| 04/01/1998 | EP0832686A2 Desiccant composition |
| 04/01/1998 | EP0832680A2 Process for cleaning exhaust gas from furnaces for fossil fuel |
| 04/01/1998 | EP0832679A2 Process and apparatus for gas separation |
| 04/01/1998 | EP0832678A2 Inert gas purification |
| 04/01/1998 | EP0832039A1 Method and device for processing a hydrogen sulphide-containing gas, comprising a cooling step for crystallised sulphur removal |
| 04/01/1998 | EP0832021A1 Device for the time-dependent control of the duration of regeneration of an air drier |
| 04/01/1998 | EP0831978A1 On-site ammonia purification for semiconductor manufacture |
| 04/01/1998 | EP0831964A1 Gas passage with selectively acting penetration surface and process for producing the penetration surface |
| 04/01/1998 | EP0831961A1 Diesel engine exhaust gas purification catalyst |
| 04/01/1998 | CN2277296Y High-efficiency wet-desulfurizing dust remover |
| 04/01/1998 | CN1177519A Gas-liquid dispersing device, gas-liquid contacting device and waste-water treating device |
| 04/01/1998 | CN1177517A Comprehensive purification for waste gas produced from preparation of inorganic fertilizer by detergent |
| 04/01/1998 | CN1177516A Process for removing SO2 and NOx from gaseous stream |
| 04/01/1998 | CN1177515A Magnetic gas-separating device |
| 04/01/1998 | CA2186934A1 Apparatus for handling volatile substances |
| 03/31/1998 | US5734092 Hydrogen permeabile membrane |
| 03/31/1998 | US5733841 Eutectic drying composition and method |
| 03/31/1998 | US5733837 Cerium oxide on support |
| 03/31/1998 | US5733657 Method of preparing membranes from blends of polymers |
| 03/31/1998 | US5733517 Byproduct solids crystal modification with organic acids in wet flue gas desulfurization systems |
| 03/31/1998 | US5733516 Process for removal of hydrogen sulfide from a gas stream |
| 03/31/1998 | US5733515 Char filtration medium |
| 03/31/1998 | US5733451 Core for interacting with a fluid media flowing therethrough and method of making the same |
| 03/31/1998 | US5733435 Pressure driven solid electrolyte membrane gas separation method |
| 03/31/1998 | US5733360 Flue gas, back corona |
| 03/31/1998 | US5733359 Flow rate for gases and cycles |
| 03/31/1998 | US5733350 Container for solid filtration media and filtration system utilizing same |
| 03/31/1998 | US5733271 Valve device for absorption of the gas components |
| 03/31/1998 | US5732766 Method and apparatus for the treatment of gas streams |
| 03/31/1998 | US5732571 Removing and liquifying the unused circulated gas |
| 03/31/1998 | US5732562 Removal of moisture from air to be conditioned |
| 03/31/1998 | US5732554 Exhaust gas purification device for an internal combustion engine |
| 03/26/1998 | WO1998012423A1 Engine control device |
| 03/26/1998 | WO1998012089A1 Air braking system component |
| 03/26/1998 | WO1998011982A1 Preparation and use of independently generated highly reactive chemical species |
| 03/26/1998 | WO1998011978A1 Catalytic method |
| 03/26/1998 | DE19706806C1 Recovery of anaesthetic gases |
| 03/26/1998 | DE19639264A1 Flue gas desulphurisation process for steam boiler |
| 03/26/1998 | DE19639204A1 Cleaning of process air |
| 03/26/1998 | DE19639160A1 Vacuum dryer with two=stage condensn. system conserving cooling water |
| 03/26/1998 | DE19638802A1 Improving the cold-start behaviour of automobile catalysts |
| 03/26/1998 | DE19638713A1 Unit for oxidising atmospheric air containing pollutants |
| 03/26/1998 | DE19638712A1 Air cleaning device for removal of smoke and smoke products |
| 03/26/1998 | CA2186445A1 Voc control/solvent recovery system |
| 03/25/1998 | EP0831142A1 Process for the removal of water and naphtha from a gas, consisting of two additional steps of solvent regeneration |
| 03/25/1998 | EP0831033A1 Disiccant container |
| 03/25/1998 | EP0830888A2 Use of a catalyst and process for cleaning a used catalyst |
| 03/25/1998 | EP0830695A1 Electrically insulating gastight feedthrough |
| 03/25/1998 | EP0830202A1 Copper-silver zeolite catalysts |
| 03/25/1998 | EP0830201A1 Diesel engine exhaust gas purification system |
| 03/25/1998 | EP0830200A1 Catalyst and method for oxidizing oxygen-containing organic compounds in waste gas |
| 03/25/1998 | EP0830199A1 Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts |
| 03/25/1998 | EP0830198A1 Catalytic vent gas treatment system for abatement of volatile chemical emissions |
| 03/25/1998 | EP0830197A1 Method for purifying an inert gas while preparing lower alkyl esters |
| 03/25/1998 | EP0830196A1 Enzyme systems for gas processing |
| 03/25/1998 | EP0830195A2 Oxygen-scavenging composition |
| 03/25/1998 | EP0830182A1 Vaporizable material injection into molten bath |
| 03/25/1998 | EP0773820B1 Method and apparatus for cleaning a vapour |
| 03/25/1998 | EP0691882A4 Composite carbon fluid separation membranes |
| 03/25/1998 | EP0688237A4 Separation of solutes in gaseous solvents |
| 03/25/1998 | EP0672445B1 Method and apparatus for preventing contamination of substrate or substrate surface |
| 03/25/1998 | CN1177313A Honeycombed body with only partial attachment to a protective tube |
| 03/25/1998 | CN1177307A Storage and delivery system for gaseous compounds |
| 03/25/1998 | CN1177079A Method of combustion and combustion plant |
| 03/25/1998 | CN1176991A Process for removal and high-pressure recovery of carbon dioxide from high-pressure raw gas and system therefor |
| 03/25/1998 | CN1176847A Catalyst and method for catalytic off-gas cleaning in DMT process |
| 03/25/1998 | CN1176844A Separation membrane |
| 03/25/1998 | CN1176843A Radial bed vacuum/pressure swing adsorber vessel |
| 03/25/1998 | CN1037824C Packing element |