| 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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| 04/27/1999 | US5896675 Device with at least one storage container for material to be treated, preferably plastic material granules |
| 04/27/1999 | CA2065547C Continuous process for mass transfer of a liquid reagent with two different gases |
| 04/27/1999 | CA2029484C Gas separation by adsorbent membranes |
| 04/27/1999 | CA2023054C Hollow fiber bundle element for an adsorber |
| 04/22/1999 | WO1999019456A1 Steam reformer with internal hydrogen purification |
| 04/22/1999 | WO1999019060A1 Catalyst for exhaust gas purification |
| 04/22/1999 | WO1999019052A1 Air cleaner |
| 04/22/1999 | WO1999019051A1 Agent for purifying gas, a method for the production thereof, and the application of the same |
| 04/22/1999 | WO1999019050A1 Gas purification system with safety device and method for purifying gases |
| 04/22/1999 | WO1999019049A2 Semiconductor manufacturing system with getter safety device |
| 04/22/1999 | WO1999019048A1 Semiconductor manufacturing system with getter safety device |
| 04/22/1999 | DE19746343A1 Method for photo chemical and biological reactions |
| 04/22/1999 | DE19745806A1 Processing off-gas from oxidation of olefin to carbonyl compounds |
| 04/21/1999 | EP0909583A1 Supported catalysts,preparation and use thereof |
| 04/21/1999 | EP0909579A1 Adsorbent material or adsorbent comprising porous material for automobile exhaust gas purification |
| 04/21/1999 | EP0909578A2 Process and apparatus for conditioning a gas to be combusted and an exhaust gas |
| 04/21/1999 | EP0909577A2 Mobile appparatus for purifying polluted air |
| 04/21/1999 | EP0909576A1 Exhaust gas purification apparatus |
| 04/21/1999 | EP0909215A1 Stable pillared clays and their use as catalysts for hydroconversion of waxy feeds |
| 04/21/1999 | EP0909212A1 Modified carbon adsorbents and processes for adsorption using the same |
| 04/21/1999 | EP0909208A1 Flow regulated pressure swing adsorption system |
| 04/21/1999 | EP0752910B1 Method for removing sulphur dioxide from a gas |
| 04/21/1999 | EP0738179B1 A process for treating nitrogen oxide-containing gas using a cerium zeolite |
| 04/21/1999 | EP0728033B1 Absorption of mercaptans |
| 04/21/1999 | EP0630679B1 Air treating method using photocatalyst under interior illumination |
| 04/21/1999 | EP0605719B1 Method for treating exhaust gas |
| 04/21/1999 | CN2315468Y Recovering and utilizing device for steam |
| 04/21/1999 | CN1214358A Gas purifying method and apparatus |
| 04/21/1999 | CN1214274A Waste gas treating method for viscose fiber production |
| 04/21/1999 | CN1043091C Control casing |
| 04/21/1999 | CN1043029C Method for removing hydrogen sulphide from gas and recovering in the form of sulphur |
| 04/20/1999 | US5895772 Catalyst having a zirconium oxide and/or cerium oxide support and containing gold and a transition metal oxide |
| 04/20/1999 | US5895769 In-situ crystallized zeolite containing composition (LAI-ISC) |
| 04/20/1999 | US5895700 Improved spalling strength includes a plurality of passages aligned in its axial direction catalyst carrier, exhaust gas purifying apparatus or a firing apparatus such as a boiler or a combustion apparatus such as an internal combustion engine |
| 04/20/1999 | US5895636 Contacting gas stream with catalytically effective amount of platinum and/or palladium supported on high surface area alumina stabilized with alkaline earth metal oxide and rare earth metal oxide |
| 04/20/1999 | US5895634 Desulfurization and decarbonation process |
| 04/20/1999 | US5895567 Biological waste fluid cleaner |
| 04/20/1999 | US5895520 Method of separating noxious substances from exhaust gases |
| 04/20/1999 | US5895519 Intercalating into porous, storage matrix; semiconductors |
| 04/20/1999 | US5894728 Exhaust emission control device for diesel engines |
| 04/20/1999 | US5894725 Method and apparatus for maintaining catalyst efficiency of a NOx trap |
| 04/20/1999 | CA2104819C Process for recovering oxygen from gaseous mixtures containing water or carbon dioxide which process employs barium-containing ion transport membranes |
| 04/20/1999 | CA2065546C Process and apparatus for removal of h2s with separate absorber and oxidizer and a reaction chamber therebetween |
| 04/20/1999 | CA2062488C Process using cyanocobaltate complexes for removing oxygen from a fluid stream |
| 04/20/1999 | CA2061463C Separation of multicomponent gas mixtures by selective adsorption |
| 04/20/1999 | CA2040348C Pre-purification of air for separation |
| 04/15/1999 | WO1999018333A1 Method and apparatus for using free radicals to reduce pollutants in the exhaust gases from the combustion of a fuel |
| 04/15/1999 | WO1999018251A1 Oxidation-resistant metal foil, its use and method for its production |
| 04/15/1999 | WO1999017866A1 Composite hollow fiber membrane |
| 04/15/1999 | WO1999017863A1 Wet type exhaust gas desulfurization method |
| 04/15/1999 | WO1999017862A1 Device for cooling gases |
| 04/15/1999 | DE19847109A1 Separation of iodine containing gas from hydrogen iodide |
| 04/15/1999 | DE19845615A1 Heat exchanger, especially vapor condenser |
| 04/15/1999 | DE19745362A1 Compressed air dewatering device |
| 04/15/1999 | DE19745191A1 Material for purifying gas to remove mercury and other pollutants |
| 04/15/1999 | DE19744594A1 Improving the performance of electrofilters with denaturing deposition electrodes for air purification |
| 04/15/1999 | DE19744477A1 Burner for waste gas cleaning installations |
| 04/15/1999 | CA2305238A1 Method and apparatus for using free radicals to reduce pollutants in the exhaust gases from the combustion of a fuel |
| 04/15/1999 | CA2273934A1 Oxidation-resistant metal foil, its use and method for its production |
| 04/14/1999 | EP0908508A1 Process for the removal of water, CO2, ethane and C3+ hydrocarbons from a gas stream |
| 04/14/1999 | EP0908230A2 Nitrogen dioxide absorbent and its use for purifying ventilation gas |
| 04/14/1999 | EP0908229A1 Adsorbent for exhaust gas purification |
| 04/14/1999 | EP0908227A1 Coated membranes |
| 04/14/1999 | EP0908225A2 System for exhaust gas purification and method for exhaust gas purification using said system |
| 04/14/1999 | EP0908224A1 Process for the removal of lower hydrocarbons in exhaust gas |
| 04/14/1999 | EP0908223A1 Process of the destruction of organic halogen compounds in dust-containing gases at low temperature |
| 04/14/1999 | EP0908222A1 Process for low temperature reduction of dioxines in an exhaust from a technical installation |
| 04/14/1999 | EP0908221A1 Catalyst and process for reducing dioxines at low temperature |
| 04/14/1999 | EP0908220A1 Method for using spent catalysts |
| 04/14/1999 | EP0908219A1 Multi-stage process for the separation/recovery of gases |
| 04/14/1999 | EP0908218A1 PSA process using an adsorbent with heterogeneous capacity and/or selectivity |
| 04/14/1999 | EP0908217A1 Verfahren for treating flue gas |
| 04/14/1999 | EP0907537A1 A drain valve |
| 04/14/1999 | EP0907419A1 Inductive radial-discharge funnel-shaped nozzle |
| 04/14/1999 | EP0907413A2 Catalytic converter having a catalyst with noble metal on molecular sieve crystal surface and methods of making same |
| 04/14/1999 | EP0907402A1 Method of removing, from a stream of gas, fluorinated compounds which contribute to destruction of the ozone layer and/or changes in climate, and use of the method |
| 04/14/1999 | EP0907401A1 Integrated voc entrapment system for regenerative oxidation |
| 04/14/1999 | EP0907400A1 Process and device for drying gas, especially natural gas |
| 04/14/1999 | EP0907398A1 Liquid and gas purification and filtration |
| 04/14/1999 | EP0705134B1 Layered catalyst composite |
| 04/14/1999 | CN2313660Y Hot smoke elminating and dust collecting device |
| 04/14/1999 | CN2313655Y Moisture eliminator |
| 04/14/1999 | CN1213984A Cleaning ambient air by movement of vehicle having pollutant treating surface |
| 04/14/1999 | CN1213691A Gas refinishing process and gas refinishing equipment |
| 04/14/1999 | CN1213690A Gas refinishing process and gas refinishing equipment |
| 04/14/1999 | CN1213643A Process for removing hydrogen and/or carbon monoxide from air stream |
| 04/14/1999 | CN1213588A Honeycomb structure for catalyst |
| 04/14/1999 | CN1213587A Process for manufacturing foil of ferritic stainless steel having high aluminium content |
| 04/14/1999 | CN1213582A Process and apparatus for removing acid gases from exhaust gases |
| 04/14/1999 | CN1213581A Waste gas desulfurization method and appts. thereof |
| 04/14/1999 | CN1213580A Flue gas desulfurizing tech. and appts. for by-product gypsum |
| 04/14/1999 | CN1213579A Bed granulometry and thickness of PSA unit |
| 04/14/1999 | CN1213578A Purification of gases using solid adsorbents |
| 04/13/1999 | US5894068 Reduction of NOx in the exhaust gases from internal combustion engines containing excess oxygen |
| 04/13/1999 | US5894013 Catalyst for purifying exhaust gas |
| 04/13/1999 | US5893945 End structures for filter canisters |
| 04/13/1999 | US5893944 Which can control concentration of oxygen |
| 04/13/1999 | US5893940 Injecting ammonia by controlling exhaust gas temperature, at specified temperature |
| 04/13/1999 | US5893267 Catalytic reduction system for oxygen-rich exhaust |
| 04/13/1999 | CA2083921C Process for removing halogenated organic compounds from waste gases |