| 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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| 04/06/1994 | CN2160452Y Device for dusting, desulfurizing and denitrifying |
| 04/06/1994 | CN1084843A Method of producing unsaturated hydrocabons and separating the same from saturated hydrocarbons |
| 04/06/1994 | CN1024122C Method of preparing, storing and transporting high=purity hydrogen and its installation |
| 04/06/1994 | CA2107654A1 Catalytic converter with a metal carrier comprising a matrix of catalytically coated metal strips welded into a jacket tube |
| 04/06/1994 | CA2107144A1 Nitrogen adsorption with a divalent cation exchanged lithium x-zeolite |
| 04/05/1994 | US5301217 Device for the recombination of hydrogen and oxygen and nuclear power plant using the device |
| 04/05/1994 | US5300472 Catalyst for selective reduction of nitrous oxides with ammonia |
| 04/05/1994 | US5300277 Combining organic directing agent with silicon and metal oxides, agitating, crystallizing, x-rays diffraction |
| 04/05/1994 | US5300270 Hot-side electrostatic precipitator |
| 04/05/1994 | US5300269 Catalytic decomposition of dinitrogen monoxide which is pure or present in gas mixtures |
| 04/05/1994 | US5300202 Dissociating the gases by pyrolysis using electromagnetic waves |
| 04/05/1994 | US5300139 Air cleaner with a build-in ashtray |
| 04/05/1994 | US5300138 Comprising silica gel, modified molecular sieve; twenty per cent of sodium ions replaced by potassium |
| 04/05/1994 | US5299633 Heat exchanger device for refrigeration driers in compressed-air installations and tube/plate heat exchangers for use in the latter |
| 04/02/1994 | CA2106930A1 Despressurization effluent repressurized adsorption process |
| 03/31/1994 | WO1994006585A1 Method for making a ceramic metal composite |
| 03/31/1994 | WO1994006563A1 Method for pollution emission reduction from glass melting furnace |
| 03/31/1994 | WO1994006546A1 Layered automotive catalyst with improved performance |
| 03/31/1994 | WO1994006545A1 Electrochemical cell and use thereof in the electrochemical separation or extraction of oxygen |
| 03/31/1994 | WO1994006544A1 Electrochemical cell and its use in the electrochemical separation or extraction of oxygen |
| 03/31/1994 | WO1994006543A1 Plasmachemical process for decomposing and/or destroying pollutants, in particular for cleaning exhaust fumes of internal combustion engines or other fossil fuel driven machines, and device therefor |
| 03/31/1994 | WO1994006542A1 Composite metal membrane for hydrogen extraction |
| 03/31/1994 | WO1994006541A1 System for separation of oxygen from argon/oxygen mixture |
| 03/31/1994 | WO1994006540A1 Sheet type and sheet-filter type methyl bromide removing material, and methyl bromide removing method using the same materials |
| 03/31/1994 | WO1994006539A1 Biofilter with modular trays |
| 03/31/1994 | WO1994006532A1 Continuous chromatography |
| 03/31/1994 | DE4333152A1 Selective dissociation of chemical cpds. esp. for sepn. or purificn. - by stimulation in vibrational or rotational-vibrational band e.g. with UV, visible or IR light, esp. laser light |
| 03/31/1994 | DE4329725A1 Hot-gas pipe leading into widened liquid-collecting chamber - narrows into nozzle to give clear expansion and generate turbulence |
| 03/31/1994 | DE4232496A1 New polyamideimide(s) - used for prodn. of gas-sepn. membranes and membranes contg. dispersed, catalytically active particles of metals, oxide(s), etc |
| 03/31/1994 | CA2145161A1 Method for making a ceramic metal composite |
| 03/31/1994 | CA2145083A1 Method for pollution emission reduction from glass melting furnace |
| 03/31/1994 | CA2123507A1 Electrochemical cell and use thereof in the electrochemical separation or extraction of oxygen |
| 03/31/1994 | CA2123506A1 Electrochemical cell and its use in the electrochemical separation or extraction of oxygen |
| 03/30/1994 | EP0589832A1 Process for deoxidising water |
| 03/30/1994 | EP0589406A2 02 VSA process with low 02 capacity adsorbents |
| 03/30/1994 | EP0589393A2 Method for purifying oxygen rich exhaust gas |
| 03/30/1994 | EP0589391A1 Adsorptive separation using diluted adsorptive phase |
| 03/30/1994 | EP0589174A1 A device for treating fumes generated by a dental oven |
| 03/30/1994 | EP0515640B1 Method for preparing multi-metal catalysts |
| 03/30/1994 | CN2159826Y Wet compound smoke purifier |
| 03/30/1994 | CN2159825Y Auto exciting venturi tube duster |
| 03/30/1994 | CN1084611A A catalytic automotive emission control process with improved cold-start behavior |
| 03/30/1994 | CN1084428A Reactor and method for reducing sulfur oxides emissions in a combustion process |
| 03/30/1994 | CN1084427A Desuiphurisation of waste gases |
| 03/29/1994 | US5298475 Crushing concrete fragments under pressure to form primary fragment, crushing, screening, separation of fine cement |
| 03/29/1994 | US5298473 Hydrated lime clay composites for the removal of SOx from flue gas streams |
| 03/29/1994 | US5298341 Multiple stack ion conducting devices |
| 03/29/1994 | US5298231 Absorption and desorption of gaseous reactants on complexes |
| 03/29/1994 | US5298230 Process for the efficient catalytic reduction of nitrogen oxides |
| 03/29/1994 | US5298228 Hydrolysing to hydrogen sulfide and carbon dioxide, withdrawal cooling, heating, feeding and recovering |
| 03/29/1994 | US5298227 Mixing melting furnace effluent with cooling air to condense metal compounds, filtration, incineration |
| 03/29/1994 | US5298226 Distributor has middle, outer and interior section |
| 03/29/1994 | US5298138 Solid electrolyte ion conducting device |
| 03/29/1994 | US5298054 Adsorption, heating, and cooling for purging impurities |
| 03/29/1994 | US5297398 Polymer desiccant and system for dehumidified air conditioning |
| 03/29/1994 | CA1328141C Spherical polymer tertiary or secondary organosiloxaneamine compounds |
| 03/24/1994 | EP0584240A4 Single patient use disposable carbon dioxide absorber. |
| 03/24/1994 | EP0584160A4 Filter. |
| 03/24/1994 | DE4331932A1 Bio-gas prodn. from manure - has sludge gassing station to give gas for gas turbine for electricity generation and used sludge is dried for disposal |
| 03/24/1994 | DE4231762A1 Gas separation membrane with improved selectivity and permeability - has separating layer based on inter-penetrating network contg. hairy-rod type polymer and bridged macrocyclic metal complex |
| 03/24/1994 | DE4231594A1 Uniformly moistening biological gas filter material - by spraying water into radially deflected incoming gas stream |
| 03/24/1994 | DE4231581A1 Verfahren zur plasmachemischen Zersetzung und/oder Vernichtung von Schadstoffen, insbesondere zur Abgasreinigung von Verbrennungsmotoren oder anderer mit fossilem Treibstoff betriebenen Maschinen, sowie zugehörige Vorrichtung Process for the plasma-chemical decomposition and / or destruction of contaminants, in particular for purifying exhaust gas of internal combustion engines or other machines operated with fossil fuel, as well as associated device |
| 03/24/1994 | DE4231327A1 Kontinuierliche Chromatographie Continuous Chromatography |
| 03/23/1994 | EP0588733A1 Gas-liquid contactor of falling film type |
| 03/23/1994 | EP0588705A1 Process and installation for gas separation by permeation |
| 03/23/1994 | EP0588691A1 Ceric oxide containing composition, its preparation and its use |
| 03/23/1994 | EP0588587A1 Process for treatment of exhaust gas |
| 03/23/1994 | EP0588459A1 Process for removing readily oxidizable organic compounds from gas streams |
| 03/23/1994 | EP0588315A1 Exhaust gas purification apparatus for internal combustion engine |
| 03/23/1994 | EP0588217A1 Reactive matrix for removing impurities from hydride and inert gases and process |
| 03/23/1994 | EP0588178A2 Process for removing carbon dioxide from combustion gases |
| 03/23/1994 | EP0588175A2 Process for removing carbon dioxide from combustion gases |
| 03/23/1994 | EP0588079A1 Method and apparatus for reducing NOx emissions |
| 03/23/1994 | EP0457895B1 Device for continuously cleansing the exhaust gases of a vacuum installation |
| 03/23/1994 | CN1084102A Catalyst, carriers |
| 03/23/1994 | CN1084098A method for eliminating environmental pollution caused by nitrogen oxide |
| 03/23/1994 | CN1084097A Carbonaceous adsorbents for prevention of carbon bed fires |
| 03/22/1994 | US5296435 Catalyst and a method of prepare the catalyst |
| 03/22/1994 | US5296423 Cordierite substrates |
| 03/22/1994 | US5296254 Protective devices |
| 03/22/1994 | US5296206 Heat exchange |
| 03/22/1994 | US5296205 Mobile packing elements in both loosely packed bed and fixed packed bed having density such that they float in water |
| 03/22/1994 | US5296198 Heater and catalytic converter |
| 03/22/1994 | US5296196 Having porous metal-carrying zeolite layer covering outer electrode to absorb low molecular weight hydrocarbons and pass high molecular weight hydrocarbons to semiconductor |
| 03/22/1994 | US5296110 Apparatus and method for separating oxygen from air |
| 03/22/1994 | US5296105 Absorption, desorption |
| 03/22/1994 | US5296097 Method for reducing contaminants in pulp prior to ozone bleaching |
| 03/22/1994 | US5296017 Method and apparatus for concentrating chlorine gas |
| 03/19/1994 | CA2089127A1 Carbonaceous adsorbents for prevention of carbon bed fires |
| 03/17/1994 | WO1994006149A1 Toxic remediation system and method |
| 03/17/1994 | WO1994005960A1 Process and apparatus for producing liquid carbon dioxide |
| 03/17/1994 | WO1994005405A1 Alkyl substituted polyimide, polyamide and polyamide-imide gas separation membranes |
| 03/17/1994 | WO1994005401A1 Method for fabricating a gas adsorption means, adsorption means and sanitazing plant |
| 03/17/1994 | WO1994005400A1 Desulphurization of flue gases |
| 03/17/1994 | WO1994005399A1 Method of decomposing gaseous halocarbons |
| 03/17/1994 | WO1994005398A1 Convection towers |
| 03/17/1994 | WO1994005392A1 Method and device for simultaneously drying and removing metallic and organic mercury from fluids |
| 03/17/1994 | DE4241726C1 Metallic mercury@ absorption from waste gas on large scale - by scrubbing with aq oxidant soln forming system with specified redox potential after removing mercuric ions and pref acidic cpds |
| 03/17/1994 | DE4230644A1 Recovery of carbon di:oxide from coal power stations - and converting into methane by anaerobic fermentation. |
| 03/17/1994 | DE4230595A1 Automotive catalytic converter assembly having latent heat storage medium - comprises outer housing surrounding layer of heat insulation |