| 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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| 11/13/1997 | DE19618656A1 Mounting and location of exhaust gas catalyst monolith using ceramic fibre pad |
| 11/13/1997 | DE19617830A1 Production of polyamide-imide by direct polymerisation |
| 11/13/1997 | DE19617297A1 Simultane Detektion von oxidierbaren und reduzierbaren Gasen mit Metalloxidsensoren unter Einsatz von Impedanzspektroskopie Simultaneous detection of oxidizable and reducible metal oxide gases using impedance spectroscopy |
| 11/13/1997 | DE19616206A1 Vorrichtung zur Nachbehandlung von Abgas durch Kombination von Gasentladung und Katalysator Apparatus for treatment of exhaust gas through a combination of gas discharge and catalyst |
| 11/13/1997 | DE19610025A1 Decorative, personal, air freshener |
| 11/12/1997 | EP0806468A2 Olefin recovery from olefin-hydrogen mixtures |
| 11/12/1997 | EP0806237A2 Degassing liquids apparatus and method |
| 11/12/1997 | EP0806236A1 Process and apparatus for reducing NOx emission of combustion exhaust gases |
| 11/12/1997 | EP0806235A1 Combustion exhaust treatment device with rotary element for internal recirculation |
| 11/12/1997 | EP0806234A1 Control means for molecular sieve on-board oxygen generator |
| 11/12/1997 | EP0805712A1 Selective catalytic reduction of nitrogen oxides |
| 11/12/1997 | EP0690742B1 Method and apparatus for cleaning of hot gas and extraction of energy therefrom |
| 11/12/1997 | CN2267088Y Dry desulfurizing tower |
| 11/12/1997 | CN1164831A Reactive composition and method for purification of nitric oxide containing gas |
| 11/12/1997 | CN1164523A Palladium-ceramic composite film and nitrogen rich film coupling making catalytic dehydrogenation reaction |
| 11/12/1997 | CN1164435A Concentrating and discharging method for wet fume-extracting desulfurizing absorption liquor raw material |
| 11/11/1997 | US5686613 Tridentate metal ligands of certain pyridine phosphonic acids |
| 11/11/1997 | US5686377 Catalyst for purifying exhaust gases |
| 11/11/1997 | US5686293 Sulfide-oxidizing bacteria |
| 11/11/1997 | US5686164 Electrical insulation of structures in a honeycomb body in particular an electrically heatable catalyst carrier body |
| 11/11/1997 | US5686053 Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent |
| 11/11/1997 | US5686039 Methods of making a catalytic converter or diesel particulate filter |
| 11/11/1997 | US5685897 High strength, low pressure drop adsorbent wheel |
| 11/11/1997 | US5685896 Linear choke shuttle/orifice check valve mechanism for a twin tower air dryer |
| 11/11/1997 | US5685895 Chemical filter, photolithography |
| 11/11/1997 | US5685890 Process for steam reforming of hydrocarbons |
| 11/11/1997 | US5685886 Apparatus for gas washing |
| 11/11/1997 | US5685172 Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide |
| 11/11/1997 | US5685170 In natural gas, absorber upstream from an expander and a separator |
| 11/11/1997 | US5685144 Exhaust gas ignition during cold starts |
| 11/10/1997 | CA2203051A1 Degassing liquids: apparatus and method |
| 11/10/1997 | CA2198652A1 Control means for molecular sieve for on-board oxygen generator |
| 11/06/1997 | WO1997041612A1 Stable high conductivity functionally gradient compositionally layered solid state electrolytes and membranes |
| 11/06/1997 | WO1997041423A1 Process and device for detecting oxidable and/or reducible gasses in air |
| 11/06/1997 | WO1997041336A1 Apparatus and method for regenerating nox catalyst for diesel engines |
| 11/06/1997 | WO1997041085A1 Method for separating hydrogen and methane from gaseous hydrocarbon |
| 11/06/1997 | WO1997041080A1 Method for treating solid waste materials from wet gas cleaning systems blowoff |
| 11/06/1997 | WO1997041073A1 Ultraviolet light irradiated ebullating mass transfer system |
| 11/06/1997 | WO1997041060A1 Solid state oxygen anion and electron mediating membrane and catalytic membrane reactors containing them |
| 11/06/1997 | WO1997040937A1 In situ method for metalizing a semiconductor catalyst |
| 11/06/1997 | WO1997040936A1 Fibrous matte support and method for the photopromoted catalyzed degradation of compounds in a fluid stream |
| 11/06/1997 | WO1997040925A1 Particle-loaded membranes as oxidant scavengers |
| 11/06/1997 | WO1997040923A1 Three-way catalyst for treating exhaust gases |
| 11/06/1997 | WO1997040922A1 Process for adsorbing hydrocarbons from exhaust fumes |
| 11/06/1997 | WO1997040920A1 Methods of selectively separating co2 from a multicomponent gaseous stream |
| 11/06/1997 | WO1997040914A1 Method of manufacturing thin metal membranes |
| 11/06/1997 | WO1997040904A1 Supported liquid membrane separation |
| 11/06/1997 | DE19708260A1 Water-resistant photo-reactive agent for removing pollutants over long period |
| 11/06/1997 | DE19708181A1 Microbial decomposition |
| 11/06/1997 | DE19617190A1 Heating exhaust gas catalyst rapidly, by upstream injection of fuel gas-air mixture |
| 11/06/1997 | DE19617076A1 Verfahren zur Adsorption von Kohlenwasserstoffen aus Rauchgasen Process for the adsorption of hydrocarbons from flue gases |
| 11/06/1997 | DE19616197A1 Vorrichtung mit gekühlten Bereichen zur elektrischen Nachbehandlung von Abgas Device with cooled exhaust gas after-treatment areas for electrical |
| 11/06/1997 | DE19615067A1 Continuous treatment of industrial waste waters e.g. from mineral oil refineries |
| 11/06/1997 | CA2256010A1 Process and device for detecting oxidable and/or reducible gasses in air |
| 11/06/1997 | CA2252520A1 Ultraviolet light irradiated ebullating mass transfer system |
| 11/05/1997 | EP0805265A2 Catalytic converter for Diesel engine exhausts |
| 11/05/1997 | EP0805010A1 Process and apparatus for regenerating an adsorbent agent |
| 11/05/1997 | EP0804962A1 Process for the production of mixed oxides powders from deactivated catalysts for the reduction of the NOx concentration in a gas stream |
| 11/05/1997 | EP0804959A1 Emission control catalyst and emission control method using the same |
| 11/05/1997 | EP0804795A1 Separation of gases |
| 11/05/1997 | EP0804679A1 Catalyst |
| 11/05/1997 | EP0804400A1 Hydroformylation of a multi-component feed stream |
| 11/05/1997 | EP0804380A1 Method and catalyst for catalytically oxidising a low concentration of h 2?s in a gas to give sulphur |
| 11/05/1997 | EP0804282A1 Method and device for purifying gases |
| 11/05/1997 | EP0804276A1 Method and apparatus for cleaning ambient air by contact with a stationary substrate |
| 11/05/1997 | EP0804275A1 Method and apparatus for treating the atmosphere |
| 11/05/1997 | EP0804274A1 Pollutant treating device located in vehicle compartment for cleaning ambient air |
| 11/05/1997 | EP0804273A1 Method for separating gaseous pollutants from hot process gases |
| 11/05/1997 | EP0804272A1 Waste gas treatment system and method |
| 11/05/1997 | EP0804271A1 PROCESS FOR PURIFYING COMBUSTION GASES WITH DeNOx CATALYSTS AT TEMPERATURES BELOW 150o C |
| 11/05/1997 | EP0756587A4 Apparatus and method for treating hazardous waste |
| 11/05/1997 | CN2266454Y Attached ozone purifier for duplicating machine |
| 11/05/1997 | CN1163858A Process for recovering sulfur from gas containing hydrogen sulfide |
| 11/05/1997 | CN1163795A Process for preparing blanketing gases or reaction gases for heat treatment of metals |
| 11/05/1997 | CN1163792A Garbage disposal apparatus |
| 11/05/1997 | CN1036319C Recovery method of acid gas by methanol absorption |
| 11/04/1997 | US5683951 Water treatment, roasting a ceramic and treatment with microorganisms of bacteria, fungi or yeasts |
| 11/04/1997 | US5683670 Removal of sulfur dioxide from sulfur trioxide |
| 11/04/1997 | US5683666 Method for the removal of sulfur dioxide and nitrogen oxides for a gaseous stream |
| 11/04/1997 | US5683665 Composition and process for cleansing exhaust gas |
| 11/04/1997 | US5683664 Of a deodorizing ceramic obtained by calcining a composition comprising raw ceramic materials and microorganisms and/or culture fluid thereof |
| 11/04/1997 | US5683587 Producing a sludge of calcium carbonate and magnesium hydroxide by reaction of soda ash with lime in water feeding waste gases containing polllutants for scrubbing, separation and injection into reaction chamber |
| 11/04/1997 | US5683532 Method of manufacturing an active silica gel honeycomb adsorbing body usable in an atmosphere having 100% relative humidity |
| 11/04/1997 | US5683499 Fluid collecting device for collecting moisture from tanks |
| 11/04/1997 | US5683493 Packing for separation columns and process of use |
| 11/04/1997 | US5683492 Withdrawing purge gas from acetic acid synthesis, separating purge gas using adsorption and recycling gas fraction rich in carbon monoxide upstream of acetic acid synthesis stage |
| 11/04/1997 | US5683491 Gas chromatography; removing acid gas with solvent from hydrocarbon gas stream; regeneration; sweetening |
| 11/04/1997 | US5682761 Ultra-high purity nitrogen generating method and unit |
| 11/04/1997 | US5682740 Coating layer of barium-containing mixed oxide having nox-reducing capability |
| 10/30/1997 | WO1997040542A1 Device and method for combined purification and compression of hydrogen containing co and the use thereof in fuel cell assemblies |
| 10/30/1997 | WO1997040266A2 System for reduction of harmful exhaust emissions from diesel engines |
| 10/30/1997 | WO1997040265A1 Process and device for treating waste gas |
| 10/30/1997 | WO1997039979A1 Process for removal of hydrogen cyanide from synthesis gas |
| 10/30/1997 | WO1997039823A1 Procedure and filter device for removal and/or destruction of organic substances in contaminated air |
| 10/30/1997 | WO1997039822A1 Device for aftertreatment of waste gas through a combination of gas discharge and catalyst |
| 10/30/1997 | WO1997039821A1 Flow regulated pressure swing adsorption system |
| 10/30/1997 | WO1997039816A1 Control systems for operating gas cleaning devices |
| 10/30/1997 | WO1997039813A1 Device for distributing liquid in substance exchange columns |
| 10/30/1997 | WO1997032660A3 Process and device for scrubbing waste gases containing ethylene oxide |
| 10/30/1997 | DE19715475A1 Conversion of Nitrogen oxide(s) to nitrogen at low temperatures |