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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11/02/1999 | US5975891 Method for reducing NOx emission from a kiln plant |
11/02/1999 | US5975503 Structured packing assembly |
11/02/1999 | US5974829 Method for carbon dioxide recovery from a feed stream |
11/02/1999 | US5974810 Method and composition for preventing odors in ice |
11/02/1999 | US5974794 Exhaust gas purification device for an internal combustion engine |
11/02/1999 | US5974793 Exhaust gas purification device for an internal combustion engine |
11/02/1999 | US5974791 Exhaust gas purification device for an internal combustion engine |
11/02/1999 | US5974790 Catalytic converter decontamination method |
11/02/1999 | US5974789 Method and device for decomposing nitrogen oxides in the exhaust gas of an internal combustion engine |
11/02/1999 | US5974788 Method and apparatus for desulfating a nox trap |
11/02/1999 | US5974784 Insulative shield, particularly for automotive exhaust components |
11/02/1999 | CA2169802C Integrated air separation process |
11/02/1999 | CA2088880C Gas-liquid contact system |
11/02/1999 | CA2074290C Incineration of waste gas containing toxic or other fumes in the form of liquid droplets |
10/28/1999 | WO1999054948A1 Method and system for removing carbon monoxide from a reformate gas stream containing hydrogen |
10/28/1999 | WO1999054795A1 Sulfur dioxide abatement system |
10/28/1999 | WO1999054662A1 Method and apparatus for the prevention of global warming, through elimination of hazardous exhaust gases of waste and/or fuel burners |
10/28/1999 | WO1999054615A2 Air cleaner |
10/28/1999 | WO1999054601A1 METHOD AND DEVICE FOR PURIFYING EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE CONTAINING NITROGEN OXIDE (NOx) |
10/28/1999 | WO1999054572A1 Mobile system for reducing the exhaust-gas pollution rate in the stagnant regions of the ground atmospheric layer |
10/28/1999 | WO1999054270A1 METHOD OF REDUCING NO¿x? |
10/28/1999 | WO1999054024A1 Regenerative method for de-acidifying a gas containing co2 and liquid hydrocarbons, using an absorbing liquid based on activated methyldiethanolamine |
10/28/1999 | WO1999054023A1 Method for purifying gas by adsorption with controlled pressure and temperature levels |
10/28/1999 | WO1999054022A1 Filtration unit for removing contaminants from fluids |
10/28/1999 | WO1999053983A1 Nitrous oxide based oxygen supply system |
10/28/1999 | DE19918875A1 Air fuel ratio control system for lean burn engine with oxygen and nitrogen oxides storage catalysts |
10/28/1999 | DE19918499A1 Separation of hydrogen and its isotopes from gaseous mixtures using a corrugated tubular metallic diffusion membrane |
10/28/1999 | DE19903022A1 Device for deodorizing air |
10/28/1999 | DE19819882A1 Reactor for catalytically oxidizing ammonia to nitrogen oxides |
10/28/1999 | DE19818448A1 Catalytic reduction of nitrogen oxides in exhaust gases using judiciously dosed urea reductant |
10/28/1999 | DE19818277A1 Adsorption apparatus for purifying liquids |
10/28/1999 | CA2329911A1 Nitrous oxide based oxygen supply system |
10/27/1999 | EP0952111A1 CO2 purification system |
10/27/1999 | EP0951530A1 Sulphur reducing bacterium and its use in biological desulphurisation processes |
10/27/1999 | EP0951529A1 Steam reformer with internal hydrogen purification |
10/27/1999 | EP0951439A1 Method for providing oxygen in gas process |
10/27/1999 | EP0951355A1 Catalytically active permeable composite material, method for producing said composite material, and use of the same |
10/27/1999 | EP0951352A1 Catalyst composition and method for its manufacturing |
10/27/1999 | EP0951343A2 Membrane module for substance-specific fluid treatment |
10/27/1999 | EP0951341A1 Method for the reduction of nitrogen oxides |
10/27/1999 | EP0951340A1 Catalytic metal plate |
10/27/1999 | EP0951339A1 Composition for treating fumes and uses |
10/27/1999 | EP0951338A1 Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
10/27/1999 | EP0951337A1 Process for recovering cf 4? and c 2?f 6? from a gas |
10/27/1999 | EP0951336A1 A wet gas processing method and the apparatus using the same |
10/27/1999 | EP0951333A1 A filter having hollow fibers impregnated with solid adsorbent particles |
10/27/1999 | EP0900117A4 Control systems for operating gas cleaning devices |
10/27/1999 | EP0877649A4 IMPROVED ADVANCED REBURNING METHODS FOR HIGH EFFICIENCY NO x? CONTROL |
10/27/1999 | EP0440604B2 Devices and method for cleaning gases |
10/27/1999 | CN2345234Y Oxygenerator with pneumatic control chang-pressure adsorptive process |
10/27/1999 | CN1233195A Barrier discharge conversion of SO2 and NOx to acids |
10/27/1999 | CN1232718A Fluid separation element assembly |
10/27/1999 | CN1232717A Water spraying clean device for air exhaust pipe |
10/27/1999 | CN1232716A Separation method of pressure-varying adsorbed gas in multiple towers |
10/27/1999 | CN1045898C Distributor trough junctions |
10/27/1999 | CA2263393A1 Carbon monoxide concentration reducing apparatus and method, and production method for carbon monoxide-selective oxidation catalyst |
10/26/1999 | US5972834 Forming a molecular sieving carbon obtained by successively conducting a halogenation treatment, a dehalogenation treatment, and a pore adjustment on a carbonized charcoal; adsorbing carbon dioxide and methane |
10/26/1999 | US5972831 Inorganic transparent photocatalytic composition |
10/26/1999 | US5972830 High heat-resistant catalyst with a porous ceria support |
10/26/1999 | US5972828 Method of manufacturing catalyst for cleaning exhaust gas released from internal combustion engine, and catalyst for the same |
10/26/1999 | US5972826 High adsorption; for adsorption of gases |
10/26/1999 | US5972821 First catalyst layer having as an active metal platinum, rhodium or palladium and a second catalyst layer having iridium as an active metal which is provided as an overlayer on the first catalyst layer. |
10/26/1999 | US5972812 Garment comprising woven fabric containing ion exchange fiber having cationic fibers, anionic fibers, non-ionic exchange fibers such as polyester, nylon, cotton, rayon, polyvinyl alcohol |
10/26/1999 | US5972506 A sodium potassium intermetallic carbides or a cyclic polymer, for use in lithium batteries; nontoxic, durability, readily industrialized, no violent reaction when it is immersed in water, moderate cost |
10/26/1999 | US5972427 Adsorbent, supple, filter fabric and method for its manufacture |
10/26/1999 | US5972401 To preserve the freshness, color, texture, and natural flavor of seafood and meat |
10/26/1999 | US5972303 Olefin purification |
10/26/1999 | US5972214 Column with distributor for allowing independent injection and/or removal of fluids |
10/26/1999 | US5972196 Electrochemical production of ozone and hydrogen peroxide |
10/26/1999 | US5972182 Electrode composition and application method for oxygen generators |
10/26/1999 | US5972181 Comprising rigid core and flexible exterior of expanded metal fine mesh; for metal oxidation or reductions, oxidation of organic substituents, nitrate reduction, salt splitting |
10/26/1999 | US5972081 Negligible pressure drop absorber |
10/26/1999 | US5972080 Strength, durability, solvent resistance, heat resistance; gas separation |
10/26/1999 | US5972077 Gas separation device based on electrical swing adsorption |
10/26/1999 | US5971752 Sintering plant |
10/26/1999 | US5971255 Process and apparatus for production of metallic honeycomb body for supporting catalyst |
10/26/1999 | US5970707 Exhaust gas purification device for an internal combustion engine |
10/26/1999 | US5970706 Pulsed oxidation of carbon monoxide, hydrocarbon and nitrogen oxide gases; computer control; air pollution control |
10/26/1999 | US5970625 Automated air filtration and drying system for waterborne paint and industrial coatings |
10/26/1999 | CA2173809C Process for operating equilibrium-controlled reactions |
10/26/1999 | CA2114513C A method and system for removing sulphide(s) from sour gas |
10/26/1999 | CA2106351C Adsorptive separation using diluted adsorptive phase |
10/26/1999 | CA2024647C Method for removing harmful gas from refuse combustion exhaust gas |
10/21/1999 | WO1999053131A1 Methods for removing a contaminant by a polyoxometalate-modified fabric or a polyoxometalate-modified cellulosic fiber and fabrics thereof |
10/21/1999 | WO1999053118A1 Integrated ion implant scrubber system |
10/21/1999 | DE19817546A1 Removal of undesirable components from a gas stream by adsorption |
10/21/1999 | DE19817534A1 Production of electrical energy from hydrogen-rich crude gas |
10/21/1999 | DE19817468A1 Verfahren zur Entfernung von Verunreinigungen aus einem Gasstrom A process for removing impurities from a gas stream |
10/21/1999 | DE19816871A1 Disposable filter cartridge for medical and domestic use |
10/21/1999 | DE19816482A1 Plate catalyst used for removing nitrogen oxides from waste gas produced from combustion plants |
10/21/1999 | DE19816175A1 Verfahren zur Überprüfung der Funktionstüchtigkeit eines Stickoxid-Speicherkatalysators A method for checking the function of a nitrogen oxide storage catalytic converter |
10/21/1999 | CA2328721A1 Methods for removing a contaminant by a polyoxometalate-modified fabric or a polyoxometalate-modified cellulosic fiber and fabrics thereof |
10/20/1999 | EP0950803A2 Exhaust purification device for internal combustion engine |
10/20/1999 | EP0950801A1 Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst |
10/20/1999 | EP0950800A2 Method and apparatus for treating an engine exhaust gas stream |
10/20/1999 | EP0950431A2 Solid electrolyte ion conducting device |
10/20/1999 | EP0950430A1 Separation of CF4 and C2F6 from a perfluorocompound mixture |
10/20/1999 | EP0950028A1 Bioremediation of pollutants with butane-utilizing bacteria |
10/20/1999 | EP0950019A1 Zeolite ssz-45 |
10/20/1999 | EP0949970A2 Apparatus for photocatalytic fluid purification |