| 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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| 07/29/1999 | WO1999037388A1 Gas treating agent, method for preparing same, and method for treating gas with same |
| 07/29/1999 | WO1999037387A1 Compact air dryer |
| 07/29/1999 | DE19903203A1 Nitrogen dioxide removal from atmosphere in road tunnels and underground garages |
| 07/29/1999 | DE19902540A1 Ceramic honeycomb structure used as catalyst carrier in converter for cleaning IC engine exhaust gases |
| 07/29/1999 | DE19803012A1 Method of soldering an arrangement contg. a honeycomb body in a casing tube |
| 07/29/1999 | DE19802247A1 Nitrogen oxide emission reduction from cement clinker furnace |
| 07/29/1999 | DE19800926A1 Honeycomb structure for a motor exhaust gas cleaning system |
| 07/29/1999 | DE19758536A1 Preparation of acetaldehyde from ethylene and oxygen |
| 07/29/1999 | CA2320712A1 Compact air dryer |
| 07/29/1999 | CA2313151A1 Very low sulfur gas feeds for sulfur sensitive syngas and hydrocarbon synthesis processes |
| 07/28/1999 | EP0932214A2 Modular ceramic electrochemical apparatus and method of manufacture therefor |
| 07/28/1999 | EP0931842A1 Apparatus for producing heat treatment atmospheres |
| 07/28/1999 | EP0931763A1 Fluid separation device comprising a mixed conducting multicomponent metallic oxide membrane |
| 07/28/1999 | EP0931590A1 Catalyst for purifying exhaust gas and manufacturing method thereof |
| 07/28/1999 | EP0931581A1 Method and apparatus for purifying contaminant-containing gas |
| 07/28/1999 | EP0931579A1 Air-cleaning filter, method of producing the same, and high-level cleaning device |
| 07/28/1999 | EP0930932A1 Tube plate module |
| 07/28/1999 | EP0930930A1 PROCESS FOR REMOVING NOx FROM EXHAUST FUMES |
| 07/28/1999 | EP0930929A1 Microbiological method for eliminating halogenated ethenes |
| 07/28/1999 | CN2330872Y Mercapan bad odor waste gas combined integralized purifying device |
| 07/28/1999 | CN2330407Y Gas-liquid ion separation and mixing device |
| 07/28/1999 | CN1224482A Catalytic converter for tailpipe including apparatus for relieving back pressure |
| 07/28/1999 | CN1224081A Electrocatalytic process for gas clean-up |
| 07/28/1999 | CN1224080A Electrochemical reactor for reacting oxygen-consuming gas with oxygen-containing gas |
| 07/28/1999 | CN1223902A Catalyst for selective catalytic reduction of nitrogen oxide using methane |
| 07/28/1999 | CN1223898A Dechlorinating agent and its preparing method |
| 07/28/1999 | CN1044333C Modified poly (phenylene oxide) based membranes for enhanced fluid separation and preparing method thereof |
| 07/28/1999 | CN1044332C Process for separation of gas using high osmosis membrane |
| 07/28/1999 | CN1044331C Method for purification of feed air flow |
| 07/28/1999 | CN1044330C Dynamic dust gas purifier |
| 07/27/1999 | US5929327 Catalytic converter |
| 07/27/1999 | US5928981 Diesel catalytic converter |
| 07/27/1999 | US5928620 Process employing single-stage reactor for recovering sulfur from H2 S- |
| 07/27/1999 | US5928619 Treating exhaust gases from internal combustion engines |
| 07/27/1999 | US5928618 Methods for low temperature degradation of diesel exhaust and other organic matter |
| 07/27/1999 | US5928617 Process for removal of mercury contamination |
| 07/27/1999 | US5928615 Wet scrubber oxidation air sparger arrangement |
| 07/27/1999 | US5928610 Oxygen generator |
| 07/27/1999 | US5928496 Fluidized bed catalyst contact solids for economic removal from emissions from a variety of industrial processes |
| 07/27/1999 | US5928489 Flowing gas through electrolytic cell comprising inert membrane filled with molten electrolyte mixture of hydrogen halide and alkali metal halide, recovering halide gas product |
| 07/27/1999 | US5928426 Method and apparatus for treating exhaust gases from CVD, PECVD or plasma etch reactors |
| 07/27/1999 | US5928413 Removing sulfur dioxide and ammonia by gas-liquid contact with absorption fluid |
| 07/27/1999 | US5928412 Heating polluted liquid to boiling temperature of basic fluid to vaporize fluid, compressing, scrubbing vapor, condensing to recover purified basic fluid |
| 07/27/1999 | US5928411 Device for absorbing a gas mixture consisting of laughing gas and anesthetic vapor |
| 07/27/1999 | US5928410 Supported gas separation membrane, process for its manufacture and use of the membrane in the separation of gases |
| 07/27/1999 | US5928409 Method and apparatus for gas removal by cyclic flow swing membrane permeation |
| 07/27/1999 | US5928407 Alternating pressure apparatus for obtaining oxygen from the air and method for the operation thereof |
| 07/27/1999 | US5928128 Method for the treatment of incineration residues |
| 07/27/1999 | US5927967 Method of removing sulphur dioxide from cement kiln exhaust gases |
| 07/27/1999 | US5927399 Aftercooler with integral bypass line |
| 07/27/1999 | US5927103 Separation from light contaminants; more energy efficient |
| 07/27/1999 | US5927069 Multi-electrode corona discharge pollutant destruction apparatus |
| 07/27/1999 | US5927068 Method and apparatus for monitoring the functioning of a catalytic converter |
| 07/27/1999 | US5926969 Method and apparatus for regenerating a moist absorption medium |
| 07/27/1999 | CA2171669C Compositions capable of operating under high carbon dioxide partial pressures for use in solid-state oxygen producing devices |
| 07/22/1999 | WO1999036733A1 Desiccant assisted air conditioning system |
| 07/22/1999 | WO1999036683A1 Catalytic converter support device |
| 07/22/1999 | WO1999036682A1 Honeycomb arrangement with an intermediate layer containing at least one metal foil |
| 07/22/1999 | WO1999036681A1 Catalytic converter for a muffler of a small-size motor |
| 07/22/1999 | WO1999036366A1 Method for the treatment of gaseous discharges of a unit manufacturing an optical-fibre preform for recovering germanium |
| 07/22/1999 | WO1999036174A1 Sulfide catalysts for reducing so2 to elemental sulfur |
| 07/22/1999 | WO1999036162A1 Combatting air pollution |
| 07/22/1999 | WO1999036160A1 Peroxyacid compound use in odor reduction |
| 07/22/1999 | WO1999036159A1 Process and system for separation and recovery of perfluorocompound gases |
| 07/22/1999 | WO1999036158A1 Two-stage rotary concentrator |
| 07/22/1999 | WO1999036157A1 A system for preventing the emanation of vapors, odors, smoke and dusts in open spaces |
| 07/22/1999 | WO1999022861B1 Biomimetic materials for filtration, chemical processing and detoxification |
| 07/22/1999 | DE19806265C1 Low-maintenance system dosing urea solution into exhaust or effluent gases, for selective catalytic reduction |
| 07/22/1999 | DE19803005A1 Treatment of gas adsorbents using aqueous fluorine compound to prevent rapid deleterious absorption of liquid polar compounds |
| 07/22/1999 | DE19802182A1 Disposal of thickened desliming water especially from a flue gas desulfurizing plant for coal dust-fired boilers |
| 07/22/1999 | DE19801629A1 Catalyst diagnostics process for testing conversion capacity of IC engine exhaust gas catalyst |
| 07/22/1999 | DE19801626A1 Catalyst diagnostics process for testing nitrogen oxide(s) storage capacity of i. c. engine exhaust gas catalyst |
| 07/22/1999 | DE19801625A1 Monitoring method for NOx storage catalytic convertors |
| 07/22/1999 | DE19801321A1 Decontamination of solid materials containing mercury |
| 07/22/1999 | DE19800873A1 Catalyst solution for reducing pollutant emissions |
| 07/22/1999 | DE19751663C1 Plant purifying effluent gases from combustion processes other than internal combustion engines |
| 07/22/1999 | CA2318136A1 Combatting air pollution |
| 07/22/1999 | CA2317706A1 Two-stage rotary concentrator |
| 07/21/1999 | EP0930425A2 Exhaust emission control system for internal combustion engine |
| 07/21/1999 | EP0930277A1 Process for treating exhaust gases from a unit for the fabrication of optical fiber preforms, for recovering germanium |
| 07/21/1999 | EP0930271A2 Compositions based on mixed oxides of zirconium and cerium and use of these compositions |
| 07/21/1999 | EP0930091A1 Method of treating exhaust gas |
| 07/21/1999 | EP0930090A1 Peroxyacid compound use in odor reduction |
| 07/21/1999 | EP0930089A1 Process for air purification using adsorpion before cryogenic distillation |
| 07/21/1999 | EP0929739A1 Honeycomb body with reduced heat conductivity in inflow and outflow areas |
| 07/21/1999 | EP0929738A1 Honeycombed body with heat insulation, preferably for an exhaust gas catalyzer |
| 07/21/1999 | EP0929357A1 Separation of gaseous components from a gas stream with a liquid absorbent |
| 07/21/1999 | EP0853653A4 Fcc no x? reduction by turbulent/laminar thermal conversion |
| 07/21/1999 | EP0853652A4 Fcc regenerator in partial co burn with downstream air addition |
| 07/21/1999 | EP0614016B1 Hydraulic drive unit of hydraulic working machine |
| 07/21/1999 | CN2329426Y Dedusting desulfurizing plant |
| 07/21/1999 | CN2329425Y Multi-pipe desulfurizing duster |
| 07/21/1999 | CN1223632A Recovery of highly fluorinated carboxylic acids from the gaseous phase |
| 07/21/1999 | CN1223598A Exhaust gas purification apparatus |
| 07/21/1999 | CN1223230A Method for recovering sulfuric acid from sulfurous by-products of process for preparing, 2-hydroxy-4-methylthiobutyric acid (MHA) |
| 07/21/1999 | CN1223172A Method for manufacturing heating element having coating layer of catalyst and electronic dust collector using said heating element and air conditioner provided therewith |
| 07/21/1999 | CN1223168A Method for thermally regenerating spent acid |
| 07/21/1999 | CN1223167A Method for operation of air prepurifier which takes into account inlet air conditions |
| 07/21/1999 | CN1223166A Pressure swing adsorption air prepurifier |
| 07/21/1999 | CN1223165A Rotary blowers for pressure swing adsorption process and system |