| 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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| 11/23/1999 | CA2174301C Switching and purging mechanism for a twin tower air dryer |
| 11/23/1999 | CA2125753C Combined heat exchanger and ammonia injection process |
| 11/23/1999 | CA2109887C Ceric oxyde crystallites agregate, production process and use for reducing combustion residues |
| 11/23/1999 | CA2006093C Removing hydrogen sulphide from a gas mixture |
| 11/18/1999 | WO1999058260A1 Treating apparatus, treating method and method of treating soil |
| 11/18/1999 | WO1999058230A1 Method and device for selective catalytic reduction of nitrogen oxides in a gaseous medium containing oxygen |
| 11/18/1999 | WO1999058229A1 Method for hydrogen sulfide abatement |
| 11/18/1999 | WO1999058228A1 Mercury removal from flue gas |
| 11/18/1999 | WO1999058227A1 A method of producing so2 sorbent and thereafter utilizing such so2 sorbent to desulfurize combustion gases |
| 11/18/1999 | WO1999058226A1 A method of producing so2 sorbent that is suitable for use to desulfurize combustion gases |
| 11/18/1999 | WO1999058225A1 Method for purifying a gaseous mixture and concentrating it into a minor constituent, method for detecting said constituent, and installation |
| 11/18/1999 | WO1999046031A9 Decarbonating gas streams using zeolite adsorbents |
| 11/18/1999 | DE19921854A1 Removal of nitrogen oxides from flue gas from recovery boiler of pulp factory |
| 11/18/1999 | DE19822766A1 Drying and purifying air for separation of oxygen and nitrogen, with xenon recovery |
| 11/18/1999 | DE19822165A1 Process for drying a gas, esp. natural gas |
| 11/18/1999 | DE19822055A1 Ionization filter, e.g. for denaturing microorganisms |
| 11/18/1999 | DE19822054A1 Denaturing electrofilter unit, e.g. for treating air |
| 11/18/1999 | DE19821942A1 Fertigungsverfahren für eine Katalysatoranordnung mit einer konischen gewickelten Metallträgermatrix Manufacturing method for a catalyst arrangement with a conical coiled metal support matrix |
| 11/18/1999 | DE19821615A1 Chimney attachment for reducing carbon dioxide from gas-fired plants |
| 11/18/1999 | DE19821469A1 Separation of polychlorinated dioxins and furanes from waste gases, especially from combustion plants |
| 11/18/1999 | DE19821184A1 Electrostatic air filter for removal of microorganisms |
| 11/18/1999 | DE19820990A1 Vorrichtung in einer Anlage zur Reduktion von Stickoxiden Device in a system for reducing nitrogen oxides |
| 11/18/1999 | DE19820828A1 Stickoxidemissionsmindernde Abgasreinigungsanlage Nitrogen oxide emission-reducing emission control system |
| 11/18/1999 | DE19814386A1 Verfahren und Vorrichtung zur katalytischen Entfernung eines Schadstoffes in einem Abgas einer Verbrennungsanlage Method and device for the catalytic removal of a pollutant in an exhaust gas of a combustion plant |
| 11/17/1999 | EP0957320A2 Heat exchanger element |
| 11/17/1999 | EP0957254A2 Exhaust gas purifying apparatus for internal combustion engine |
| 11/17/1999 | EP0957243A2 Treatment of nitrogen oxide at an Otto engine supplied with a lean mixture |
| 11/17/1999 | EP0957242A2 NOx emission reducing exhaust gas cleaning device |
| 11/17/1999 | EP0957241A2 Particulate trap for diesel engine |
| 11/17/1999 | EP0956928A1 Method and apparatus for purification of argon |
| 11/17/1999 | EP0956895A1 Device for the reduction of nitrogen oxides |
| 11/17/1999 | EP0956894A1 Adsorption process for recovery of solvents |
| 11/17/1999 | EP0956434A1 Turbo-charged internal combustion engine |
| 11/17/1999 | EP0956264A1 Zeolite ssz-48 |
| 11/17/1999 | EP0956156A1 Imprinted materials |
| 11/17/1999 | EP0956143A2 Desulphurisation method and apparatus |
| 11/17/1999 | EP0956142A1 Liquid cooled trap patent application |
| 11/17/1999 | EP0956141A1 Amine heat stable salt neutralization having reduced solids |
| 11/17/1999 | EP0956140A1 Process and device for removing h2s from an h2s-containing gas |
| 11/17/1999 | EP0956139A1 Method and device for removing harmful substances, in particular dioxin |
| 11/17/1999 | CN2348916Y Control circuit for pressure-change absorption separation pressure-sensor |
| 11/17/1999 | CN2348915Y High-efficient dust-removing desulfurizer |
| 11/17/1999 | CN1235147A Separation of CF4 and C2F4 from perfluorocompound mixture |
| 11/17/1999 | CN1235066A Catalyst with metal carrier for purifying vehicle exhaust gas and preparation thereof |
| 11/17/1999 | CN1235065A Catalyst for treating vehicle exhaust gas, catalyzing granules and purifier using the same catalyst |
| 11/17/1999 | CN1235058A Liquid distributor for separation columns |
| 11/17/1999 | CN1046431C Acid gas adsorbing fibers and manufacturing process and apparatus thereof |
| 11/16/1999 | US5985649 Removal of gas contaminants by sparging the contaminated gas through a fluid filled container having biomass suspended therein, where the gas contaminants have a low henry's coefficient; efficiency, simplification |
| 11/16/1999 | US5985476 Stable high conductivity functionally gradient compositionally layered solid state electrolytes and membranes |
| 11/16/1999 | US5985475 Polyperfluoropropylene oxide(-co-perfluoroformaldehyde); self-supporting |
| 11/16/1999 | US5985442 Non-woven fabric mat bodies sandwich moisture absorbent; sewn together by needle punching; building deodorizers |
| 11/16/1999 | US5985227 Process for removing sulfur compounds from industrial gases |
| 11/16/1999 | US5985225 Comprising cobalt-loaded zeolite not showing a raman spectral band assignable to cobalt oxide |
| 11/16/1999 | US5985224 Combustion flue gas conditioning |
| 11/16/1999 | US5985223 Removal of NOx and SOx emissions form pickling lines for metal treatment |
| 11/16/1999 | US5985222 Apparatus and method for reducing NOx from exhaust gases produced by industrial processes |
| 11/16/1999 | US5985179 Alkanemonothiol and alkanedithiol compounds for inhibiting the corrosion of metals in both the acid gas rich and lean portions of the acid gas removal unit, aqueous alkanolamine solution |
| 11/16/1999 | US5985151 Method and apparatus of membrane separation |
| 11/16/1999 | US5985113 Modular ceramic electrochemical apparatus and method of manufacture therefor |
| 11/16/1999 | US5985112 Dispersing nanofibers and scaffold particulates in medium to form suspension, separating medium from suspension to form packed bed. |
| 11/16/1999 | US5985101 Method and apparatus for the removal of harmful substances from various objects or materials |
| 11/16/1999 | US5985007 Noble gas purifier with single purifier vessel and recuperative heat exchanger |
| 11/16/1999 | US5985006 Gas separation |
| 11/16/1999 | US5985005 Dehumidifying device |
| 11/16/1999 | US5985003 Oxygen production process by pressure swing adsorption separation |
| 11/16/1999 | US5985002 Fuel storage system with vent filter assembly |
| 11/16/1999 | US5985001 Separation of a gas |
| 11/16/1999 | US5984643 Variable capacity swash-plate-type refrigerant compressor |
| 11/16/1999 | US5984541 Resist processing system |
| 11/16/1999 | US5983667 Cryogenic system for producing ultra-high purity nitrogen |
| 11/16/1999 | US5983663 Acid gas fractionation |
| 11/16/1999 | US5983651 Compressed air dryer |
| 11/16/1999 | US5983516 Twin tower air dryer system with shuttle mechanism |
| 11/16/1999 | CA2193949C Carbon adsorbent, manufacturing method therefor,gas seperation method and device therefor |
| 11/16/1999 | CA2161898C A catalytic system and its use |
| 11/16/1999 | CA2088713C Cleaning exhaust gases from combustion installations |
| 11/15/1999 | CA2272210A1 Dessiccation chamber |
| 11/11/1999 | WO1999057365A1 Apparatus and method for the pressurized scrubbing of total reduced sulphur compounds from kraft pulp mill non-condensible gases |
| 11/11/1999 | WO1999056876A1 Catalytic material having improved conversion performance |
| 11/11/1999 | WO1999056875A2 Catalytic module |
| 11/11/1999 | WO1999056872A2 Oxidation catalyst and method for catalytic oxidation |
| 11/11/1999 | WO1999056859A1 Catalyzed hydrocarbon trap and method using the same |
| 11/11/1999 | WO1999056858A2 Method and device for catalytic reduction of nitrogen oxide |
| 11/11/1999 | WO1999056857A1 Desulfurisation of flue gases by dual alkalisation |
| 11/11/1999 | WO1999056856A1 Process for treating a fluid using two beds containing dissimilar particulate material |
| 11/11/1999 | WO1999056855A1 Method for producing a xenon concentrate |
| 11/11/1999 | WO1999056853A1 Catalyst members having electric arc sprayed substrates and methods of making the same |
| 11/11/1999 | DE19920308A1 Effluent gas treatment process |
| 11/11/1999 | DE19820790A1 Cleaning of gases by a dry method |
| 11/11/1999 | DE19820580A1 Regenerable gas filter made of composite material based on permeable carrier |
| 11/11/1999 | DE19820515A1 Verfahren zur Herstellung eines Katalysators für die Reinigung von Abgasen, die Stickstoffoxide in Gegenwart von Sauerstoff und Wasser enthalten A process for producing a catalyst for purifying exhaust gases containing nitrogen oxides in the presence of oxygen and water |
| 11/11/1999 | DE19819939A1 Electrostatic air filter for removal of microorganisms |
| 11/11/1999 | DE19818536A1 Fuel additive for neutralization of sulfur oxides in exhaust gases from internal combustion engines |
| 11/11/1999 | DE19722904C2 Kältefalle für wasserdampfhaltiges Meßgas Cold trap for measuring gas containing water vapor |
| 11/10/1999 | EP0955352A1 Reduction of silicon compounds in fuel gases |
| 11/10/1999 | EP0955351A1 Carbon monoxide concentration reducing apparatus and method, and production method for carbon monoxide-selective oxidation catalyst |
| 11/10/1999 | EP0955267A1 Composite zirconium-cerium oxide, process for the preparation thereof, and cocatalyst for cleaning exhaust gas |
| 11/10/1999 | EP0955265A2 Process for adsorbing carbon dioxide from a carbon dioxide containing gas mixture |
| 11/10/1999 | EP0955094A1 Herbal catalytic composition and device for enhancing combusion |
| 11/10/1999 | EP0955080A1 Process to prepare a catalyst for exhaust gas purification |