| 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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| 05/19/1999 | EP0916997A1 Method for minimising the aerial oxidation of photographic developers |
| 05/19/1999 | EP0916941A2 Method and apparatus for detecting a functional condition of an NOx occlusion catalyst |
| 05/19/1999 | EP0916829A2 Method of operation of a diesel engine |
| 05/19/1999 | EP0916401A1 Heat-resistant hc adsorbent |
| 05/19/1999 | EP0916389A1 An exhaust gas purification device for an internal combustion engine |
| 05/19/1999 | EP0916388A2 A method for processing perfluorocarbon and an apparatus therefor |
| 05/19/1999 | EP0916387A2 Heavy oil fired boiler exhaust gas treatment apparatus |
| 05/19/1999 | EP0916386A1 Solid electrolyte ionic conductor systems for oxygen, nitrogen, and/or carbon dioxide production with gas turbine |
| 05/19/1999 | EP0916385A1 Solid electrolyte ionic conductor with adjustable steam-to-oyxgen production |
| 05/19/1999 | EP0916384A1 Solid electrolyte ionic conductor oxygen production with steam purge |
| 05/19/1999 | EP0916383A1 Cryogenic system for producing ultra-high purity nitrogen |
| 05/19/1999 | EP0916382A1 Device and method for purifying contaminated gas |
| 05/19/1999 | EP0916063A1 Receiver/dryer and method of assembly |
| 05/19/1999 | EP0915733A1 Catalytic converter system for diesel engine emission control |
| 05/19/1999 | EP0915732A1 A method and apparatus for removing gaseous elementary mercury from a gas |
| 05/19/1999 | EP0654968B1 Anti-microbial composition |
| 05/19/1999 | CN2319112Y Low temp. plasma industrial waste gas treatment appts. |
| 05/19/1999 | CN1216937A Three-way catalyst for treating exhaust gases |
| 05/19/1999 | CN1216750A Low temp. system for producing super pure nitrogen |
| 05/19/1999 | CN1216719A Vacuum pressure swing adsorption system and method |
| 05/19/1999 | CA2253183A1 Solid polyelectrolytic module and solid polyelectrolytic apparatus using same |
| 05/19/1999 | CA2252041A1 Process for reduction of acid content in highly acidic gases |
| 05/18/1999 | US5905056 Oxidation of hydrocarbons, zinc, copper and aluminum spinel to which has been added palladium, platinum, rhodium, ruthenium, osmium, iridium, rhenium and/or rare earth metals, such as lanthanum and cerium, vanadium, titanium, niobium, molybdenum, |
| 05/18/1999 | US5904910 Combustion to sulfur dioxide; heating, deaminating; recovering; air pollution control; sulfur trioxide and nitrogen oxide by-product inhibition |
| 05/18/1999 | US5904909 Methods for removing and decomposing methyl bromide from fumigation |
| 05/18/1999 | US5904908 Using an aqueous solution containing an alkylaminoamide compound |
| 05/18/1999 | US5904905 Corona discharge pollutant destruction apparatus and manufacture method |
| 05/18/1999 | US5904754 Diffusion-bonded palladium-copper alloy framed membrane for pure hydrogen generators and the like and method of preparing the same |
| 05/18/1999 | US5904750 VOC control/solvent recovery system |
| 05/18/1999 | CA2254245A1 Solid electrolyte ionic conductor with adjustable steam-to-oxygen production |
| 05/18/1999 | CA2254134A1 Solid electrolyte ionic conductor oxygen production with steam purge |
| 05/18/1999 | CA2205199C Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate |
| 05/18/1999 | CA2165633C Method of reagent and oxidation air delivery |
| 05/18/1999 | CA2130718C Nox adsorption and removal apparatus |
| 05/18/1999 | CA2095243C Fluid purification |
| 05/14/1999 | WO1999023421A1 Rotary oxidizer systems for control of restaurant emissions |
| 05/14/1999 | WO1999022861A1 Biomimetic materials for filtration, chemical processing and detoxification |
| 05/14/1999 | WO1999022852A1 Method for producing hollow fibrous membranes for microfiltration, ultrafiltration or gas separation |
| 05/14/1999 | WO1999022848A1 Process and apparatus for removing metal carbonyls and moisture from a gas |
| 05/14/1999 | WO1999022847A1 Process for abating nitrogen oxide emissions from a manufacturing stream |
| 05/14/1999 | WO1999022846A1 Selective adsorption of components of a gas mixture |
| 05/14/1999 | WO1999022845A2 Method and device for recovering gases |
| 05/14/1999 | WO1999022838A1 Separation process and apparatus |
| 05/14/1999 | WO1999022837A1 Batch-continuous countercurrent mass exchange process |
| 05/14/1999 | WO1999022610A2 Gas irradiation treatment |
| 05/14/1999 | CA2310601A1 Batch-continuous countercurrent mass exchange process |
| 05/14/1999 | CA2248670A1 Method for minimizing the aerial oxidation of photographic developers |
| 05/13/1999 | CA2221118A1 Nitrogen dioxide exhaust gas purification catalyst and method |
| 05/12/1999 | EP0915288A2 Exhaust heat recovery boiler |
| 05/12/1999 | EP0915244A2 Exhaust gas purifying apparatus of internal combustion engine |
| 05/12/1999 | EP0915057A2 Process for the selective elimination of ammonia or ammonium ions from an aqueous solution |
| 05/12/1999 | EP0915056A1 Highly heat-resistant beta-zeolite and adsorbent for automobile exhaust gas purification |
| 05/12/1999 | EP0914877A1 Method of decomposing dioxins |
| 05/12/1999 | EP0914866A1 Process for removing the nitrogen oxides from the exhaust gases using the selective catalytic reduction with ammonia, without formation of dinitrogen oxide |
| 05/12/1999 | EP0914864A2 Hydrocarbon-Adsorbent |
| 05/12/1999 | EP0914863A1 Adsorbent and method for removal of moisture from gaseous hydrogen chloride |
| 05/12/1999 | EP0914857A1 System and method for the vacuum pressure swing adsorption |
| 05/12/1999 | EP0914856A1 Process, system and rotary blower for pressure swing adsorption |
| 05/12/1999 | EP0914686A1 Method and apparatus for desulfurizing fuel gas |
| 05/12/1999 | EP0914547A1 Device and method for purification of exhaust gas |
| 05/12/1999 | EP0914295A1 Process for treating the scrubbing water from the gas scrubbing process in an iron ore reduction plant |
| 05/12/1999 | EP0914207A1 Completely metallic oxidation catalyst |
| 05/12/1999 | EP0914203A1 A method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid |
| 05/12/1999 | EP0914199A1 Acid contacted enhanced adsorbent and/or catalyst and binder system |
| 05/12/1999 | EP0914193A1 Catalytic incineration process and catalyst composition useful therefor |
| 05/12/1999 | EP0914192A1 Process for the purification of gases containing hydrogen sulphide |
| 05/12/1999 | EP0914191A1 Catalyst composition, its preparation, and its use in catalytic incineration |
| 05/12/1999 | EP0914190A1 Bypass system and method for regenerative thermal oxidizers |
| 05/12/1999 | EP0914189A1 Process for recovering processing liquids |
| 05/12/1999 | EP0898490A4 Method for determining saturation of carbon filters in a gas treatment process |
| 05/12/1999 | EP0789621B1 Catalyst with zirconia/ceria support |
| 05/12/1999 | EP0785904B1 Oxygen generating device |
| 05/12/1999 | DE19651280C1 Production of pure argon in an air separation plant |
| 05/12/1999 | CN2317932Y Differential-watertower-curtain desulfurizing dust remover |
| 05/12/1999 | CN2317931Y Device for producing oxygen by removing carbon dioxide |
| 05/12/1999 | CN2317930Y Contact cold-wind dewatering tower |
| 05/12/1999 | CN2317929Y Three-phase fluidized-bed gas-purifying device |
| 05/12/1999 | CN1216290A Process for treatment of flue gas desulfurization waste water |
| 05/12/1999 | CN1043310C Suction device for removing nitrogen oxide |
| 05/11/1999 | US5902747 Transferring gaseous component between two fluids through membrane unit including liquid impermeable, oxygen permeable nonporous membrane formed of amorphous copolymer of perfluoro-2,2-dimethyl-1,3-dioxole |
| 05/11/1999 | US5902555 Stirring tank containing formed gypsum slurry, rotating suction filter above the tank partially immersed in the slurry so gypsum adheres to filter surface, is dehydrated above the surface and removed; size reduction, simplification |
| 05/11/1999 | US5902551 Process gas docking station with point-of-use filter for receiving removable purifier cartridges |
| 05/11/1999 | US5902524 Method and apparatus for heat treatment of an extrusion to extract chemicals and gases for injection into a second cold extrusion of inert media to combine and liquefy these in production of a product |
| 05/11/1999 | US5902384 Wicking fiber with solid particulates for a high surface area odor removing filter and method of making |
| 05/11/1999 | US5902381 Dehydrating breather apparatus |
| 05/11/1999 | US5902380 Dust collector |
| 05/11/1999 | US5902379 Oxygen generating device |
| 05/11/1999 | US5902224 Mass-mass cell gas centrifuge |
| 05/11/1999 | US5902182 Air exchange and cleaning system for building enclosure, particularly indoor firing range |
| 05/11/1999 | US5901464 E-1 twin tower air dryer for an air compressor unit |
| 05/11/1999 | US5901459 Shuttle mechanism for twin tower air dryer system |
| 05/06/1999 | WO1999022186A1 Method of refrigeration purification and power generation of industrial waste gas and apparatus therefor |
| 05/06/1999 | WO1999022129A1 Method for operating a piston internal combustion engine with direct fuel injection and secondary treatment of exhaust |
| 05/06/1999 | WO1999022128A1 Method for secondary treatment of exhaust in piston internal combustion engines with direct fuel injection |
| 05/06/1999 | WO1999021821A1 Process for the purification of an alkanolamine |
| 05/06/1999 | WO1999021649A1 Catalytic membrane reactor with two component three-dimensional catalysis |
| 05/06/1999 | WO1999021644A1 Hollow fiber contactor and process |
| 05/06/1999 | WO1999021643A1 Hollow membranes with capillary tubes, modules for treating fluid using same and methods for making same |
| 05/06/1999 | WO1999021642A1 Method for separating oxygen from a gas mixture containing it and device for implementing said method |
| 05/06/1999 | WO1999021641A1 A method and device at an air drier |