| 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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| 07/21/1999 | CN1223164A PSA process and system using simultaneous top and bottom evacuation of adsorbent bed |
| 07/21/1999 | CN1223163A Fiber reclamation using carbon dioxide |
| 07/21/1999 | CN1223162A Fog-net type desulfurating dust-removing equipment |
| 07/21/1999 | CN1044225C Process and equipment for the separation of an unsaturated hydrocarbon from a fluid mixture with other hydrocarbons |
| 07/20/1999 | US5925326 Process for the production of high purity carbon dioxide |
| 07/20/1999 | US5925323 Perforated housing in air flow line which contains solid absorbent for impurities in the air and which equilibrates concentration of impurities in absorbent with those in air, pretreatment of air for regeneratable thermal oxidizer |
| 07/20/1999 | US5925322 Fuel cell or a partial oxidation reactor or a heat engine and an oxygen-enriching device and method therefor |
| 07/20/1999 | US5925321 Garbage disposing device |
| 07/20/1999 | US5925241 Housing containing washable, regenerable carbon-based adsorbent |
| 07/20/1999 | US5925169 Method and device for drying a gas which has been compressed by a compressor |
| 07/20/1999 | US5925168 Separation of oxygen from nitrogen in air by modified pressure swing adsorption to increase selectivity |
| 07/20/1999 | US5925167 Flowing exhaust gas from vapor deposition chamber into duct having three-way valve selectively adjusted to direct different fractions of gas to treatment/collection/exhaust points |
| 07/20/1999 | US5925158 Gas recycle for float glass system |
| 07/20/1999 | US5924419 Apparatus for passive hypoxic training and therapy |
| 07/20/1999 | US5924414 Deep-frying device |
| 07/20/1999 | US5924280 Reducing NOx emissions from an engine while maximizing fuel economy |
| 07/20/1999 | CA2156464C Reduction of emissions from fcc regenerators |
| 07/20/1999 | CA2013869C Method for removing nitrogen oxides from exhaust gases |
| 07/15/1999 | WO1999035387A1 Monitoring of leaks in an exhaust treatment system of an internal combustion engine |
| 07/15/1999 | WO1999035107A2 Odor-free composting method and installation |
| 07/15/1999 | WO1999034904A1 Three-way catalyst |
| 07/15/1999 | WO1999034903A1 Thermally durable, low h2s three way catalysts |
| 07/15/1999 | WO1999034902A1 Heatable catalytic converter arrangement having a water trap located upstream |
| 07/15/1999 | WO1999034901A1 Catalyst based on ferrierite/iron for catalytic reduction of nitrous oxide content in gases, method for obtaining same and application |
| 07/15/1999 | WO1999034900A1 Process for treating hydrogen sulfide lean streams with partial combustion of feed stream |
| 07/15/1999 | WO1999034899A1 Apparatus and method for controlled decomposition oxidation of gaseous pollutants |
| 07/15/1999 | WO1999034898A1 Apparatus and method for simultaneous recovery of hydrogen from water and from hydrocarbons |
| 07/15/1999 | WO1999034896A1 Filter for use in gas-conducting lines or circuits |
| 07/15/1999 | WO1999034895A1 Electrolytic process for treating aqueous waste streams |
| 07/15/1999 | WO1999028272A3 Ceramic network, method for the production and utilization thereof |
| 07/15/1999 | WO1999026722A3 Catalyst body |
| 07/15/1999 | WO1999022610A3 Gas irradiation treatment |
| 07/15/1999 | DE19900310A1 Catalytic converter used in silencer of small engine of e.g. chain saw or portable generator |
| 07/15/1999 | DE19900148A1 Wound-spiral honeycomb, metal-sheet substrate for exhaust catalyst |
| 07/15/1999 | DE19857027A1 Metal carrier for a catalyst used in a vehicle engine exhaust system |
| 07/15/1999 | DE19852317A1 Biological gas filter useful for odor or noxious component removal from waste gases |
| 07/15/1999 | DE19852316A1 Bottom for a biological gas filter for removing odor or noxious component from waste gases |
| 07/15/1999 | DE19807173A1 Burial chamber with ventilator and with space for micro-organisms |
| 07/15/1999 | DE19803799A1 Three-way catalyst production for removing pollutants from vehicle exhaust gases |
| 07/15/1999 | DE19801840A1 Catalyst for plasma-chemical waste air cleaning |
| 07/15/1999 | DE19800654A1 Beheizbare Katalysatoranordnung mit vorgeschalteter Wasserfalle Heated Catalyst arrangement with upstream water trap |
| 07/15/1999 | DE19800420A1 Apparatus for cleaning outgoing air from furnaces |
| 07/15/1999 | DE19753572A1 Catalytic purification of exhaust gases from diesel engine over wide temperature range |
| 07/15/1999 | CA2318560A1 Improvements in catalytic materials |
| 07/14/1999 | EP0928890A2 Method for operating an NOx storage catalytic converter |
| 07/14/1999 | EP0928777A1 Waste treatment system in a polishing apparatus |
| 07/14/1999 | EP0928631A2 Apparatus for treating exhaust gases containing hydrogen |
| 07/14/1999 | EP0928630A1 Process for the catalytic decomposition of ammonia and hydrogen cyanide in a coke oven exhaust gas |
| 07/14/1999 | EP0928629A1 Pressure swing adsorption assembly |
| 07/14/1999 | EP0928399A1 A METHOD AND AN APPARATUS FOR INJECTION OF NOx REDUCING AGENT |
| 07/14/1999 | EP0928324A1 Method for reducing sulfur-oxide emissions from an asphalt air-blowing process |
| 07/14/1999 | CN1222636A Metallic carrier for catalyst |
| 07/14/1999 | CN1222414A Method of comprehensive utilization of paper-making black liquor, fume and flyash to form environment-protecting good circulation |
| 07/14/1999 | CN1044106C Method of recovering oxygen-rich gas |
| 07/13/1999 | US5922330 Dispersion of cerium iv oxide and/or a hydrated oxide, having ph of greater than 5 and conductivity of atmost 2ms/cm and being formed of cerium nitrate starating product |
| 07/13/1999 | US5922295 A catalytic exhaust gas system of a gasoline internal combustion engine comprising a trap absorbing nitrogen oxides when an air/fuel ratio of exhaust gas is lean, releasing absorbed nitrogen oxides when oxygen is lower |
| 07/13/1999 | US5922293 From a lean burn engine by contacting with a catalyst which includes at least one of: group 1a or 2a or rare earth elements dissolved in titania to from a solid solution, and a noble metal on the support; sulfur oxide poisoning resistance |
| 07/13/1999 | US5922290 Associated with manufacture, storage and transport of asphalt; separator to remove condensed oils, unit to oxidize |
| 07/13/1999 | US5922178 High temperature gas separation apparatus |
| 07/13/1999 | US5922109 Dehydration and desorption of aromatics with glycols |
| 07/13/1999 | US5922108 Containing hydrocarbon; adsorption in dry soil in a column, desorption and recovery using moist air, water or steam |
| 07/13/1999 | US5922107 Absorption |
| 07/13/1999 | US5922105 Passing gas containing hydrocarbons through dehumidifier to reduce humidity, then through adsorber and/or absorber to decrease concentration of non-methane hydrocarbons, then through filter to remove fine particles |
| 07/13/1999 | US5922104 Separation membranes prepared from polyamide polymers having 2,2'-bis (trifluoromethyl) biphenyl units and a process of separating gaseous mixtures using them |
| 07/13/1999 | US5921106 Separating gas mixtures |
| 07/13/1999 | US5921079 Emission control apparatus |
| 07/13/1999 | US5921076 Process and apparatus for reducing nitrogen oxides in engine emissions |
| 07/13/1999 | US5921002 Radiation curing system |
| 07/13/1999 | CA2157380C Filter device for the filtration of fluids |
| 07/13/1999 | CA2086575C Method for reducing emissions when burning nitrogen containing fuels |
| 07/13/1999 | CA2029099C Method and apparatus for cooling, neutralizing, and removing suspended particulates from the gaseous products of combustion and for improving the efficiency of any furnace to which said apparatus is attached ("the kagi scrubber") |
| 07/08/1999 | WO1999034150A1 Method for dehumidifying air by diffusion-effusion |
| 07/08/1999 | WO1999033748A1 Method and catalyst for direct sulphur oxidation of h2s contained in a gas |
| 07/08/1999 | WO1999033566A1 Photocatalyst powder for environmental purification, polymer composition containing the powder and molded article thereof, and processes for producing these |
| 07/08/1999 | WO1999033564A1 Highly porous photocatalyst for utilising visible light |
| 07/08/1999 | WO1999033560A1 Catalyst for purifying exhaust gas, process for producing the same, and method for purifying exhaust gas |
| 07/08/1999 | WO1999033557A1 Gas and liquid contact apparatus |
| 07/08/1999 | WO1999033549A1 Catalytic converter system for internal combustion engine powere d vehicles |
| 07/08/1999 | WO1999033548A1 Regeneration of a nox storage catalytic converter of an internal combustion engine |
| 07/08/1999 | WO1999033547A1 PROCESS FOR THE REMOVAL OF NOx FROM A FLUID STREAM |
| 07/08/1999 | WO1999033546A1 Method and device for drying and heating air to dry solid matter |
| 07/08/1999 | WO1999033545A1 Method for preparing composite membrane for separation of hydrogen gas |
| 07/08/1999 | WO1999033540A1 Chromatographic separation process and chromatographic separator |
| 07/08/1999 | WO1999022845A3 Method and device for recovering gases |
| 07/08/1999 | WO1999019456A8 Steam reformer with internal hydrogen purification |
| 07/08/1999 | DE19809400C1 Mixed organic waste disposal by conversion to solid and gaseous fuels |
| 07/08/1999 | DE19800249A1 Reduction of harmful substances during production of aqueous bonding agents |
| 07/08/1999 | DE19757537A1 Verfahren und Vorrichtung zum Trocknen und Erhitzen von Luft zum Trocknen von Feststoffen Method and apparatus for drying and heating air for drying solid materials |
| 07/08/1999 | DE19753718C1 Verfahren zum Betreiben eines Dieselmotors A method of operating a diesel engine |
| 07/08/1999 | CA2282429A1 Chromatographic separation process and chromatographic separator |
| 07/07/1999 | EP0927818A1 Engine control device |
| 07/07/1999 | EP0927571A2 Method for treating exhaust gases from an internal combustion engine using platinum/alumina nitrogen oxide absorbents |
| 07/07/1999 | EP0927570A1 Air drier with cooling system for compressed air |
| 07/07/1999 | EP0927142A1 Method for eliminating h 2?s, so 2?, cos and/or cs 2? sulphur compounds, contained in a sulphur factory waste gas with recuperation of said compounds in the form of sulphur |
| 07/07/1999 | EP0927124A1 Air braking system component |
| 07/07/1999 | EP0927076A1 Method for renewed activation of honeycomb-shaped catalyst elements for denitrating flue gases |
| 07/07/1999 | EP0888135A4 Ozone sterilizer and generator |
| 07/07/1999 | EP0642378B1 Apparatus with a dry multi-stage pump and a plasma scrubber for converting reactive gases |
| 07/07/1999 | CN2327437Y Membrane type nitrogen producing apparatus for mining |
| 07/07/1999 | CN2327435Y Apparatus for dust collecting and desulfurizing of flue gas |