| 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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| 03/01/1994 | US5290522 Catalytic converter mounting mat |
| 03/01/1994 | US5290510 Dedorizing device and method for the thawing compartment of a refrigerator |
| 03/01/1994 | US5290345 Refillable gas adsorption bed assembly and counterflow adsorber module |
| 03/01/1994 | US5290342 Silane compositions and process |
| 03/01/1994 | US5290341 Fast response membrane generator using heat accumulation |
| 03/01/1994 | US5289954 Device for metered removal of flowable solid material |
| 03/01/1994 | CA1327346C Catalyst support material containing lanthanides |
| 03/01/1994 | CA1327307C Wet-type exhaust gas desulfurizing apparatus |
| 03/01/1994 | CA1327306C Structured column packing with liquid holdup |
| 03/01/1994 | CA1327266C Treatment of gases |
| 02/27/1994 | CA2104811A1 Membrane nitrogen gas generator with improved flexibility |
| 02/27/1994 | CA2104810A1 Membrane gas generator in association with bulk storage for increased flexibility and productivity |
| 02/27/1994 | CA2104809A1 Fast response membrane generator using heat accumulation |
| 02/24/1994 | DE4328125A1 Exhaust gas cleaning system for motor vehicle IC engine - has first cleaning treatment section arranged in exhaust system along with catalyser in main exhaust passage and by=pass passage downstream of this section. |
| 02/24/1994 | DE4227741A1 Catalytic denitrification of engine exhaust gas with reducing agent - in amt. controlled according to nitrogen oxide concn. before and/or after redn. and pref. residual reducing agent content |
| 02/23/1994 | EP0584030A1 Process for the abatement of propylene carbonate emissions |
| 02/23/1994 | EP0583914A2 Catalyst-downcomer-tray for chemical process tower |
| 02/23/1994 | EP0583878A1 Using flue gas energy to vaporize aqueous reducing agent for reduction of NOx in flue gas |
| 02/23/1994 | EP0583771A1 Control of NOx reduction in flue gas flows |
| 02/23/1994 | EP0583594A1 System and method for removing hydrocarbons from gaseous mixtures using multiple adsorbing agents |
| 02/23/1994 | EP0583488A1 Process for biological treatment of exhaust gases and device for carrying out the same |
| 02/23/1994 | EP0583327A1 Method and apparatus for eliminating volatile amines used in preparing foundry cores. |
| 02/23/1994 | EP0436666B1 Process for removing volatile organic compounds from air streams |
| 02/23/1994 | CN1082663A Catalytic solution |
| 02/23/1994 | CN1082662A Catalytic solution |
| 02/23/1994 | CN1082459A Catalytic solution |
| 02/23/1994 | CN1082454A Special chemical material for fuel engine tail gas purification |
| 02/22/1994 | US5288674 Catalyst support, feldspar catalyst |
| 02/22/1994 | US5288473 By-product inhibition using methanol |
| 02/22/1994 | US5288470 Metal substrate having an insulating barrier |
| 02/22/1994 | US5288469 Surgery plume filter device |
| 02/22/1994 | US5288373 Electrolysis, decomposition |
| 02/22/1994 | US5288309 Flue gas conditioning agent demand control apparatus |
| 02/22/1994 | US5288308 Multiple stage countercurrent hollow fiber membrane module |
| 02/22/1994 | US5288306 Activated carbon honeycombs and applications thereof |
| 02/22/1994 | US5288304 Composite carbon fluid separation membranes |
| 02/22/1994 | US5288303 Flue gas conditioning system |
| 02/22/1994 | US5288299 Exhaust gas treating apparatus |
| 02/22/1994 | US5288298 Layer of fabric bearing porous activated carbon particulate deodorizing agents; layer of foam impregnated with biostat; no need for increased air circulation |
| 02/22/1994 | CA1327116C Method of dehumidifying gases |
| 02/22/1994 | CA1327112C Process of treating residues obtained by purification of exhaust gas |
| 02/21/1994 | CA2104321A1 Method and apparatus for reducing nox emissions |
| 02/21/1994 | CA2104320A1 Control of nox reduction in flue gas flows |
| 02/17/1994 | WO1994003719A1 Activated carbon filter for motor vehicles |
| 02/17/1994 | WO1994003710A1 Exhaust gas preheating system |
| 02/17/1994 | WO1994003419A1 Improved process for separating and recovering halocarbons from mixtures thereof |
| 02/17/1994 | WO1994003270A1 Agglomerated activated carbon air filter |
| 02/17/1994 | WO1994003268A1 METHOD FOR REDUCING AUTOMATIVE NOx EMISSIONS IN LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST USING ZEOLITES |
| 02/17/1994 | WO1994003265A1 Catalytic ozone converter |
| 02/17/1994 | WO1994003264A1 Reducing n2o emissions |
| 02/17/1994 | WO1994003263A1 Improvements in the conversion of chemical moieties |
| 02/17/1994 | WO1994003261A1 Method of conditioning flue gases |
| 02/17/1994 | WO1994003237A1 A process for the destruction of halocarbons |
| 02/17/1994 | DE4226726A1 Drum treating brown coal smoke gases - is located within smoke passage of brown coal-fired boiler with lime crusher and conveyor, optimising temp. and application of lime in treatment of effluent sulphurous gases |
| 02/17/1994 | CA2141797A1 A process for the destruction of halocarbons |
| 02/17/1994 | CA2141564A1 Method for reducing automotive no emissions in lean burn internal combustion engine exhaust using zeolites |
| 02/17/1994 | CA2141302A1 A process for the conditioning of flue gases |
| 02/17/1994 | CA2140751A1 Exhaust gas preheating system |
| 02/16/1994 | EP0583234A2 Solid poly-amphiphilic polymer having use in a separation process |
| 02/16/1994 | EP0583197A1 Process for cleaning fumes from liquid fuel heaters by cooling and washing of the fumes and neutralisation of the effluents |
| 02/16/1994 | EP0583174A1 Preparation of high activity, high density activated carbon |
| 02/16/1994 | EP0582971A1 Process for the catalytic purification of automobile exhaust gases with improved cold start behaviour |
| 02/16/1994 | EP0582923A1 Thermo-oxidative stabilization of oxyalkylene glycol ethers with hindered phenols |
| 02/16/1994 | EP0582917A1 An exhaust gas purification device for an engine |
| 02/16/1994 | EP0582879A1 Formed organosiloxane polycondensates, process for their preparation and use |
| 02/16/1994 | EP0582867A1 Device for cleaning waste gas |
| 02/16/1994 | EP0582743A1 Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen |
| 02/16/1994 | EP0582632A1 Process and apparatus for removal of h 2?s from gaseous streams using membrane purification of recycle solution |
| 02/16/1994 | EP0504187B1 Dual impeller method and apparatus for effecting chemical conversion |
| 02/16/1994 | CN2155941Y Acid fog treating device for charge of lead acid accumulator |
| 02/16/1994 | CN2155940Y Flush water bath type dust remover |
| 02/16/1994 | CN2155935Y Dust-proof toxic-proof air filter |
| 02/16/1994 | CN1081936A Hci adsorbent and method for making and using same |
| 02/16/1994 | CN1081935A Packing element |
| 02/16/1994 | CN1081931A Catalytic reduction of nox and carbon monoxide using methane in the presence of oxygen |
| 02/16/1994 | CN1081930A Improved complex iron process to remove sulfide from gas mixture |
| 02/15/1994 | US5286700 Manganese oxide and palladium and/or palladium oxide in thin film on support; ozone decomposing or deodorizing catalyst |
| 02/15/1994 | US5286699 Coating and supporting on honeycomb monolith a composition containing activated alumina supporting platinum and/or palladium and rhodium, cerium oxide and optionally alumina with an alkali metal or nickel oxide |
| 02/15/1994 | US5286698 Metal oxide catalysts |
| 02/15/1994 | US5286697 Iron and/or chromium-containing oxidation catalysts for gas desulfurization |
| 02/15/1994 | US5286467 Highly efficient hybrid process for nitrogen oxides reduction |
| 02/15/1994 | US5286466 Multi-bed cocurrent downflow mass transfer column with spherical packing |
| 02/15/1994 | US5286458 Controlling flow of reducing agent in respose to temperature and pressure difference of flue gas |
| 02/15/1994 | US5286442 High-aluminum-containing ferritic stainless steel having improved high-temperature oxidation resistance |
| 02/15/1994 | US5286283 Air dryer for compressed air system having a serviceable oil filter |
| 02/15/1994 | US5286282 Continuous flow air dryer with double helix split desiccant bed |
| 02/15/1994 | US5286280 Composite gas separation membrane having a gutter layer comprising a crosslinked polar phenyl-containing - organopolysiloxane, and method for making the same - |
| 02/15/1994 | US5286279 Gas permeable coated porous membranes |
| 02/14/1994 | CA2103957A1 Smokes cleaning-up for liquid fuel boilers by cooling and washing smokes and neutralizing effluent |
| 02/14/1994 | CA2077202A1 Catalytic reduction of nox and carbon monoxide using methane in the presence of oxygen |
| 02/11/1994 | CA2101882A1 Catalyst-downcomer-tray for chemical process tower |
| 02/10/1994 | DE4326384A1 Exhaust gas cleaning system for IC engine - has electrical heating system for catalyser in exhaust pipe and control unit connecting batteries in series or parallel |
| 02/10/1994 | DE4326372A1 Exhaust gas cleaning system for IC engine using catalyser - uses heating system with wind guard to introduce heated air at air inlet pipe upstream of catalyser connected to exhaust gas pipe |
| 02/10/1994 | DE4310962C1 Common exhaust gas unit for several engines - has common exhaust pipe with branch pipes contg. individual SCR catalysts |
| 02/10/1994 | DE4226112A1 Use of catalyst contg. acidic zeolite and transition metal/rare earth oxide(s) - to reduce particle size and/or compsn. in diesel engine exhaust gas. |
| 02/10/1994 | DE4226111A1 Use of a catalyst contg. acidic zeolite and precious metals - to reduce amt. of carbon and particle compsn. and size in diesel engine exhaust gas. |
| 02/10/1994 | DE4225739A1 Verfahren zur Konditionierung von Rauchgasen A method for conditioning of flue gases |
| 02/09/1994 | EP0582402A1 Latticed packing member for gas-liquid contactors |
| 02/09/1994 | EP0582337A1 Process of removing hydrogen sulphide from a gas mixture |
| 02/09/1994 | EP0582184A1 Hydrogen recovery by adsorbent membranes |