| 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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| 05/25/1993 | CA1318255C Catalytic denitrification control process and system for combustion flue gases |
| 05/25/1993 | CA1318199C Method of catalytic combustion of organic compounds and a catalytic burner for combustion of organic compounds |
| 05/21/1993 | CA2083093A1 Membrane air drying and separation operations |
| 05/20/1993 | CA2083246A1 Catalyst material support for engine exhaust gas especially for car |
| 05/19/1993 | EP0542707A1 A ventilation method for tents, or the like, and means for the same |
| 05/19/1993 | EP0542434A1 Compressing oxygen |
| 05/19/1993 | EP0542002A2 Catalytic converter for the exhaust gases of an internal combustion engine |
| 05/19/1993 | EP0541871A1 Hydroconversion of a waste feedstock comprising highly reactive organic compounds |
| 05/19/1993 | EP0541669A1 Method and apparatus for reducing the contents of nitrogen oxides in combustion effluent gas |
| 05/19/1993 | EP0521849A4 Process, composition, and apparatus for purifying inert gases to remove lewis acid and oxidant impurities therefrom |
| 05/19/1993 | EP0458804B1 Binder for liquids |
| 05/19/1993 | EP0394384B1 Device for containing and holding in position specific quantities of bulk material |
| 05/19/1993 | CN2133353Y Smoke sweetening duster for coal boiler |
| 05/19/1993 | CN2133352Y Elastic siphon liquid distributing device |
| 05/19/1993 | CN1072275A Production method of de-ozone slice for copier |
| 05/19/1993 | CN1072109A Non-noble metal oxide carbonic oxide burning-rate accelerator and its preparing method |
| 05/19/1993 | CN1072108A Double ended hollow fiber bundle and fluids separation apparatus |
| 05/19/1993 | CN1072106A Dewatering pre-treating method of freezing method for natural gas of oil gas field |
| 05/19/1993 | CN1072105A Membrane oxygen process and system |
| 05/19/1993 | CN1072104A Oxygen-rich air conditioning device |
| 05/19/1993 | CN1072103A Efficient physical method for removing fume and dust |
| 05/19/1993 | CN1020746C Process of treating two laden absorbent solution stream |
| 05/19/1993 | CN1020677C Catalyst for reduction of nitric oxide |
| 05/19/1993 | CN1020673C Multiple-tube filling tower |
| 05/19/1993 | CA2083028A1 Permeation process and use thereof |
| 05/19/1993 | CA2082103A1 Apparatus and methods for remediating materials contaminated with hydrocarbons |
| 05/18/1993 | US5212142 Supports |
| 05/18/1993 | US5212140 Physical reduction of catalyst coatings |
| 05/18/1993 | US5212134 Calcination of iron oxide pyrite and thermoplastic polymer |
| 05/18/1993 | US5212131 Low pressure drop filter |
| 05/18/1993 | US5211934 Synthesis of mesoporous aluminosilicate |
| 05/18/1993 | US5211926 Process for extracting of disposing of ammonia or ammonia compounds from dust mixtures |
| 05/18/1993 | US5211925 Method for removing nitrogen oxides from an impure air stream in an incinerator |
| 05/18/1993 | US5211923 Hydrogen and sulfur recovery from hydrogen sulfide wastes |
| 05/18/1993 | US5211918 Catalytic converter for exhaust gases |
| 05/18/1993 | US5211875 Food, beverage, packaging |
| 05/18/1993 | US5211821 Method and apparatus for providing ecological protection with respect to equipment using a halogenated hydrocarbon |
| 05/18/1993 | US5211728 Separators for gases |
| 05/18/1993 | CA1317893C Pressure-swing adsorption system and method for nbc collective protection |
| 05/18/1993 | CA1317892C Chemical processing with an operational step sensitive to a feedstream component |
| 05/15/1993 | CA2082101A1 Compressing oxygen |
| 05/13/1993 | WO1993009146A2 High performance thermally stable catalyst |
| 05/13/1993 | WO1993008987A1 Selective sealing of defective gas separation hollow fibers |
| 05/13/1993 | WO1993008902A1 A METHOD OF IMPROVING THE Hg-REMOVING CAPABILITY OF A FLUE GAS CLEANING PROCESS |
| 05/13/1993 | WO1993008901A1 Device for removing gaseous, liquid or solid elements from an air flow |
| 05/13/1993 | WO1993008899A1 Emergency scrubbing system and method of using same |
| 05/13/1993 | WO1993008898A1 Gas filter |
| 05/13/1993 | DE4205347A1 Wet nitrogen process and assembly - used to generate ultra-clean conditions within a chemical process space |
| 05/13/1993 | DE4136818A1 Pollutant removal process to prevent inhaling - removes pollutants from solder fumes and prevents recirculation, by passing solder fumes through gravity trap |
| 05/13/1993 | DE4136776A1 Enhancing gas adsorbency of adsorbent material e.g. for dry cleaning machine - by alternately exposing adsorbent to additional cold air and process air during adsorption phase |
| 05/13/1993 | CA2122352A1 Emergency scrubbing system and method of using same |
| 05/13/1993 | CA2082188A1 Catalyzer arrangement for the exhaust gases of an internal combustion engine |
| 05/12/1993 | EP0541356A1 A filtering material and a method of producing the same |
| 05/12/1993 | EP0541271A1 Catalyst system for treating the exhaust from a lean-burn gasoline-fueled engine |
| 05/12/1993 | EP0541190A1 Core for an electrically heatable catalytic converter |
| 05/12/1993 | EP0541184A1 Process and device for composting organic material |
| 05/12/1993 | EP0541155A1 Process for cleaning gas containing nitrogen oxide |
| 05/12/1993 | EP0541009A1 Method for eliminating pollutants from gas produced during substrate drying |
| 05/12/1993 | EP0541008A1 Catalytic decomposition of N2O |
| 05/12/1993 | EP0540877A2 Double ended hollow fiber bundle and fluids separation apparatus |
| 05/12/1993 | EP0540756A1 A PROCESS FOR REMOVAL OF SO 2? AND NO x? FROM COMBUSTION FLUE GASES AND AN APPARATUS USED THEREFOR. |
| 05/12/1993 | EP0540743A1 Process, apparatus and system for the treatment of flue gas |
| 05/12/1993 | EP0540666A1 Methods for reducing sulfides in sewage gas |
| 05/12/1993 | EP0540635A1 Post-combustion catalysts |
| 05/12/1993 | EP0413791B1 Absorber for a diffusion absorption plant |
| 05/12/1993 | CN1071852A Exhaust gas denitration method and apparatus therefor |
| 05/12/1993 | CN1071851A Gas separation method by pressure swing adsorption for simultaneously preparing two gas products with high-purity and high-yield |
| 05/12/1993 | CN1071850A Low temp pressure swing adsorption with refrigeration |
| 05/11/1993 | US5210062 Catalytic exhaust systems |
| 05/11/1993 | US5209915 Method for flyash recycling in a dry SO2 scrubber |
| 05/11/1993 | US5209914 Liquid absorbing acidic gases and use thereof of in deacidification of gases |
| 05/11/1993 | US5209913 Mixing acid gas with liquid fraction, filtration to remove mercuric sulfide |
| 05/11/1993 | US5209912 Process for separating out noxious substances from gases and exhaust gases |
| 05/11/1993 | US5209905 Wet-type exhaust gas desulfurization system having a means for supplying air |
| 05/11/1993 | US5209890 Styrene scrubbing process for pipe and sewer liner method |
| 05/11/1993 | US5209848 Xylylene based polyether membranes for gas separation |
| 05/11/1993 | US5209773 Dual function mercury trap/particulate filter beds |
| 05/11/1993 | US5209764 Compressed air system with twin air dryers |
| 05/11/1993 | US5209763 Method of boosting the efficiency of removing noncondensable gases from vapors |
| 05/11/1993 | US5209762 Method and system for controlling emissions from glycol dehydrators |
| 05/11/1993 | US5209062 Large diesel engine |
| 05/11/1993 | US5209061 Lean NOx catalyst, temperature sensor |
| 05/11/1993 | CA1317600C Removal of aluminum alkyl vapor from gas stream |
| 05/11/1993 | CA1317561C Method for removing malodorous or toxic gases from an air stream |
| 05/09/1993 | CA2082283A1 Process for purifying a nitric oxyde-containing gas |
| 05/09/1993 | CA2081963A1 Catalyst system for treating the exhaust from a lean-burn gasoline-fueled engine |
| 05/09/1993 | CA2081830A1 Catalytic decomposition of n20 |
| 05/07/1993 | EP0594591A4 Gas separation membranes comprising miscible blends of polyimide polymers. |
| 05/06/1993 | DE4215512C1 Jacket for flue gas desulphurisation plant |
| 05/06/1993 | DE4136344A1 Treatment of refuse gas contg. hydrocarbon(s) - for use as fuel in gas engine driving electric generator |
| 05/06/1993 | DE4135905A1 Removing chlorinated hydrocarbon(s) from soils with clay cpds. - by suspending soil in water, blowing air bubbles into suspension to capture pollutants, and adsorbing pollutants with air gases |
| 05/06/1993 | DE4135817A1 Process to reduce quantity of nitrous oxide in fluid bed furnace gases - uses magnesium oxide catalytic converter |
| 05/06/1993 | CA2082114A1 Membrane oxygen process and system |
| 05/06/1993 | CA2079540A1 Double ended hollow fiber bundle and fluids separation apparatus |
| 05/06/1993 | CA2074534A1 Core for an electrically heatable catalytic converter |
| 05/05/1993 | EP0540428A2 Adsorbents for removing low-concentration nitrogen oxides |
| 05/05/1993 | EP0540280A1 Nitrogen oxides decreasing apparatus for internal combustion engine |
| 05/05/1993 | EP0540228A1 Alumina-containing catalyst, method for the preparation thereof and internal combustion engine exhaust system containing said catalyst |
| 05/05/1993 | EP0540196A1 Selective reduction of nitrogen oxides |
| 05/05/1993 | EP0539834A1 Process and apparatus for conducting the flow in radial flow reactors |