| 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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| 06/22/1994 | EP0602206A1 Novel absorbent sulphur oxide composition and use thereof |
| 06/22/1994 | EP0602073A1 Method of operating a coal-fired power station |
| 06/22/1994 | EP0602063A1 High-length monobloc honeycomb structure |
| 06/22/1994 | EP0456797B1 Process for treating gases |
| 06/22/1994 | EP0416127B1 Process for efficiently recovering adsorbable gas from gas which contains adsorbable gas at low concentration |
| 06/22/1994 | EP0411094B1 A process for the removal of nitrogen oxides from offgases from turbines |
| 06/22/1994 | EP0354937B1 Composite membranes of poly(methyl methacrylate) blends |
| 06/22/1994 | CN2169469Y Smoke purifier of coal burning boiler |
| 06/22/1994 | CN1025110C Process of concentrating hydrogen by variable-pressure adsorption |
| 06/22/1994 | CA2111923A1 High purity membrane nitrogen |
| 06/21/1994 | US5322674 Contacting with activated carbon, contacting with calcium hydroxide and-or ferric oxide |
| 06/21/1994 | US5322672 Electrically conductive honeycomb body, and method of monitoring and operating it as an exhaust gas catalyst carrier body |
| 06/21/1994 | US5322671 Multi-chambered; one surface adapted for deposition of metal catalyst |
| 06/21/1994 | US5322628 Method for simultaneously drying and removing metallic and organic mercury from fluids |
| 06/21/1994 | US5322549 Containing 5-succinyl-3-methyl-3-cyclohexene-1,2-dicarboxylic acid repeating units |
| 06/21/1994 | US5321952 Separation, recovering by solvent extraction, absorption, desorption, refluxing; light components from hydrocarbons |
| 06/21/1994 | US5321946 Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction |
| 06/21/1994 | CA2051627C Method and apparatus for processing nitrogen oxide gas |
| 06/21/1994 | CA1330337C Solvent composition and process employing same |
| 06/21/1994 | CA1330252C Process and apparatus for removing oxides of nitrogen and sulfur from combustion gases |
| 06/19/1994 | WO1994014531A1 Transportable electron beam system and method |
| 06/19/1994 | CA2129853A1 Transportable electron beam system and method |
| 06/16/1994 | DE4342652A1 Honigwabenförmige Heizeinrichtung Honey honeycomb heater |
| 06/16/1994 | DE4342062A1 Nitrogen-oxide absorbing automotive exhaust cleaning system - absorbs nitrogen oxides when lean fuel flow and liberates nitrogen oxide in atmos. of lesser oxygen concn.; cuts the consumption of reducing agent required for nitrogen oxide regeneration and accelerates regeneration |
| 06/16/1994 | DE4339025A1 Catalytic purificn. of polluted air - using element with absorbent portion and catalytic combustion portion. |
| 06/16/1994 | DE4313479C1 Method of removing nitrogen oxide gases from off-gas of cement production - by adding ammonia and passing over catalyst. |
| 06/16/1994 | DE4242099A1 Appts., esp. gas turbine appts. - having coating on its operating parts in contact with fuel gas or waste gas to reduce pollutant emissions |
| 06/16/1994 | DE4241891A1 Condensate trapping process esp. for flue gas - involves cooling, condensate collection and membrane filtration. |
| 06/16/1994 | DE4241605A1 High air permeability filter system - has coarsely porous absorption section followed by finely porous absorption section. |
| 06/15/1994 | EP0601994A1 Process and device for cleaning waste gases containing combustible contaminants from a desorption stage |
| 06/15/1994 | EP0601705A1 Catalysts from organo-noble metal precursors |
| 06/15/1994 | EP0601314A1 Exhaust gas cleaning device for reducing hydrocarbon emissions during cold start of combustion engines |
| 06/15/1994 | EP0601271A1 Sulfur dioxide scrubbing process producing purified magnesium hydroxide |
| 06/15/1994 | EP0601257A1 Rim element for the packing of a mass exchange column |
| 06/15/1994 | EP0601067A1 Semi-permeable gas separation membranes having non-ionic surfactants disposed on a membrane surface or within membrane structure and processes for making and using the same. |
| 06/15/1994 | EP0600976A1 Room air purifier |
| 06/15/1994 | EP0483256B1 Honeycomb body with internal flow-conducting surfaces, in particular catalyst body for motor vehicles |
| 06/15/1994 | EP0466803B1 Method for cleaning flue gas formed on refuse incineration |
| 06/15/1994 | EP0396684B1 Cross-flow filtration device and method of making |
| 06/15/1994 | EP0391972B1 Cucumber mosaic virus coat protein gene |
| 06/15/1994 | EP0357693B1 Molecular sieve arrangement |
| 06/15/1994 | CN2168859Y Medium temperature concertrating, purifying and recovering apparatus for waste acid solution |
| 06/15/1994 | CN1087840A Gamma type alumina gel self-indicating hygroscopic agent and its production method |
| 06/14/1994 | US5320999 Exhaust gas cleaner and method of cleaning exhaust gas |
| 06/14/1994 | US5320998 Catalyst for purifying exhaust gases of diesel engine |
| 06/14/1994 | US5320992 Fixed mineral bed covered with iron oxide to oxidize sulfide and mercaptans |
| 06/14/1994 | US5320817 Contacting amine-forming metal salt that has been immobilized on porous solid support with ammonia and cholorsilane/silane mixture |
| 06/14/1994 | US5320816 Process for absorption of sulfur dioxide and nitric oxide from flue gas |
| 06/14/1994 | US5320650 Fluorinated aromatic polyimide, polyamide and polyamide-imide gas separation membranes |
| 06/14/1994 | US5320428 Mixer installation, catalyzer installation and use of the catalyzer installation |
| 06/14/1994 | US5320124 Regulator adaptable for maintaining a constant partial vacuum in a remote region |
| 06/14/1994 | US5320070 Method and device for using excess heat not required for operating a desulfurization device |
| 06/14/1994 | US5320052 Catalytic sulfur trioxide flue gas conditioning |
| 06/14/1994 | US5319929 Catalytic converter system |
| 06/14/1994 | US5319921 Catalytic converter efficiency monitoring |
| 06/14/1994 | CA1330182C Composite membranes for enhanced fluid separation |
| 06/14/1994 | CA1330160C Combined catalytic baghouse and heat pipe air heater |
| 06/10/1994 | CA2110623A1 Separation of gaseous mixtures |
| 06/09/1994 | WO1994012778A1 Exhaust gas cleaning apparatus for internal combustion engines |
| 06/09/1994 | WO1994012777A1 Apparatus for heterogenous catalysis |
| 06/09/1994 | WO1994012456A1 Pervaporation separation process of a mixture of methanol and tetrahydrofurane |
| 06/09/1994 | WO1994012444A1 Method for the treatment of incineration residues and the use thereof as adsorption agent |
| 06/09/1994 | WO1994012432A1 Gas purification |
| 06/09/1994 | WO1994012431A1 Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 06/09/1994 | WO1994012430A1 Process for desulphurating a h2s-containing crude gas |
| 06/09/1994 | WO1994012429A1 PROCESS FOR REMOVING NOx/SOx OXIDES FROM GASES ______________ |
| 06/09/1994 | WO1994012266A1 Method for reducing atmospheric pollution |
| 06/09/1994 | WO1994012265A1 Method and apparatus for preventing contamination of substrate or substrate surface |
| 06/09/1994 | DE4329642A1 Solvent fractionation without distillation |
| 06/09/1994 | DE4240558A1 Photo-catalytic purificn. of gases and brines in a closed chamber - comprising using supported catalysts e.g. titanium di:oxide and palladium or platinum regenerated by washing and short wave light source |
| 06/09/1994 | DE4240387A1 Organic contaminant esp. oil sepn. |
| 06/09/1994 | CA2149443A1 Process for removing nox/sox oxides from gases |
| 06/08/1994 | EP0600730A1 Desiccant, dehydration therewith, and dehydrated product obtainable thereby |
| 06/08/1994 | EP0600483A1 Process for removing nitrogen oxides from oxygen rich exhaust gas |
| 06/08/1994 | EP0600442A1 Catalyst for purification of Diesel engine exhaust gas |
| 06/08/1994 | EP0600440A2 Method and apparatus for cleaning flue gases |
| 06/08/1994 | EP0507783B1 Device for the separation of undesired exhaust gas components |
| 06/08/1994 | EP0408772B1 Exhaust gas cleaning method |
| 06/08/1994 | EP0406263B1 Method for cleaning gases |
| 06/08/1994 | EP0375782B1 Sheet type mat |
| 06/08/1994 | CN2168224Y Electric controlling device device for wet waste-gas purificating system |
| 06/08/1994 | CN1087553A Nitrogen adsorption with a divalent cation exchanged lithium X-zeolite |
| 06/08/1994 | CN1024915C Method and equipment for preparing nitrogen by pressure-changing absorption |
| 06/07/1994 | US5319211 Vapor treatment system |
| 06/07/1994 | US5318937 Ruthenium-containing perovskite materials, catalysts and methods |
| 06/07/1994 | US5318934 Crystalline silicates containing aluminum and metals from groups 3, 5, or 8, for catalytic exhaust systems |
| 06/07/1994 | US5318759 Membrane/PSA-deoxo process for nitrogen production |
| 06/07/1994 | US5318758 Apparatus and process for removing carbon dioxide from combustion exhaust gas |
| 06/07/1994 | US5318757 Catalyst composition: zirconium oxide powder loaded with rhodium and a composite oxide of aluminum and cerium loaded with platinum or palladium |
| 06/07/1994 | US5318755 Ceramic barrier filter support coated with thin porous ceramic layer and catalyst module, both in same housing |
| 06/07/1994 | US5317979 Method and apparatus for the complete, dry desulphurization of combustion waste gases comprising SO2 and dust |
| 06/07/1994 | US5317869 Honeycomb heater |
| 06/07/1994 | CA1329982C Composition containing divalent manganese ion and method for preparing the same |
| 06/01/1994 | EP0599721A1 Process for reducing the emission of pollutants in combustion devices with circulating fluidised bed |
| 06/01/1994 | EP0599717A1 Aggregate of cristallites of cerium oxide, process for obtaining it and use in the reduction of combustion residues |
| 06/01/1994 | EP0599714A1 Mass and heat exchanger with porous plates |
| 06/01/1994 | EP0599690A1 Polymers based dehydrating materials |
| 06/01/1994 | EP0599548A1 Flat glass furnaces |
| 06/01/1994 | EP0599547A1 Glass furnaces |
| 06/01/1994 | EP0599454A1 A gas-liquid contacting device |