| 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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| 09/29/1994 | WO1994021555A1 Method for removing hydrogen sulphide from a gas and recovering in the form of sulphur |
| 09/29/1994 | WO1994021373A1 Nitrogen oxide decomposing catalyst and denitration method using the same |
| 09/29/1994 | WO1994021359A1 Method for removing sulphur compounds from a residual gas such as a residual gas from a claus process sulphur plant, and recovering said compounds as sulphur |
| 09/29/1994 | WO1994021358A1 Method for the direct high-selectivity catalytic oxidative conversion of a low concentration of h2s in a gas into sulphur, and catalyst therefor |
| 09/29/1994 | WO1994021357A1 LOW NOx BURNER |
| 09/29/1994 | WO1994021356A1 Method and apparatus for cleaning of hot gas and extraction of energy therefrom |
| 09/29/1994 | WO1994021355A1 Methods of removing and detecting harmful component |
| 09/29/1994 | WO1994021351A1 Active filters for integrated cleanup of gas streams |
| 09/29/1994 | DE4417238A1 Device for reducing the amount of nitrogen oxides in the exhaust from a lean-burn internal-combustion engine |
| 09/29/1994 | DE4417237A1 Heavy goods vehicle |
| 09/29/1994 | DE4410353A1 Process for producing a catalyst for particle removal in the exhaust gas of diesel motor vehicles and a process for particle removal using the catalyst |
| 09/29/1994 | DE4309849A1 Process and plant for binding gaseous sulphur compounds |
| 09/29/1994 | DE4309510A1 Process for producing sulphuric acid |
| 09/29/1994 | DE4309493A1 Process for the simultaneous utilisation of halogenated and basic residues |
| 09/29/1994 | DE4309460A1 Multipurpose gas purification process for the reduction of nitrogen oxides |
| 09/29/1994 | DE4244511A1 Filter device for purifying waste gases |
| 09/29/1994 | CA2136758A1 A catalyst for the decomposition of nitrogen oxides and a method for the denitrification using the same |
| 09/29/1994 | CA2135908A1 Method for the direct high-selectivity catalytic oxydative conversion of a low concentration of h2s in a gas into sulphur, and catalyst therefor |
| 09/29/1994 | CA2135906A1 Method for removing h2s in concentration of less than 5% from a gas and recovering the h2s |
| 09/29/1994 | CA2135772A1 Low nox burner |
| 09/28/1994 | EP0617199A1 Catalytic converter for reducing nitrogen oxide content in exhaust gases of an internal combustion engine |
| 09/28/1994 | EP0616845A1 Adsorptive materials and process for producing them |
| 09/28/1994 | EP0616835A1 Device for the degradation of harmful substances in a flow of gas |
| 09/28/1994 | EP0616834A1 Process for cooling the feed gas to gas separation systems |
| 09/28/1994 | EP0616733A1 Method and apparatus for the selective oxidation of carbon monoxide in a hydrogen-containing gas mixture. |
| 09/28/1994 | EP0616549A1 Particulate material separator. |
| 09/28/1994 | EP0407446B1 No reduction using sublimation of cyanuric acid |
| 09/28/1994 | CN2178139Y Wall membrane type reaction absorbing device |
| 09/28/1994 | CN2178138Y Multipurpose oxygen-making machine |
| 09/28/1994 | CN2178136Y 油烟净化器 Fume purification |
| 09/28/1994 | CN1092739A Process for purifying raw gas of ammonia synthesis |
| 09/28/1994 | CN1092697A Method for the preparation of catalyst for refining exhaust gas |
| 09/27/1994 | US5350728 Copper sulfide dispersed in alumina support |
| 09/27/1994 | US5350513 Flexible-walled absorber |
| 09/27/1994 | US5350511 Sewage purification apparatus |
| 09/27/1994 | US5350443 Filter sheet material for passenger cabins in motor vehicles |
| 09/27/1994 | US5350442 Gas handling system and adsorbent dryer regeneration apparatus |
| 09/27/1994 | US5350441 Flue gas conditioning system |
| 09/27/1994 | US5350435 Ammonium phosphate-containing wood chips |
| 09/27/1994 | CA1332122C Material utilized in preserving perishable goods |
| 09/22/1994 | DE4415194A1 Method of reducing the mercury emissions in combustion plants with wet flue gas purification processes |
| 09/22/1994 | DE4309003A1 Process for purifying a flue gas containing nitrogen oxides and other pollutants and apparatus for carrying out the process |
| 09/22/1994 | DE4308940A1 Process and apparatus for separating and recovering inhalation anaesthetics from a mixture of these substances with nitrous oxide (laughing gas) |
| 09/22/1994 | DE4308697A1 Process for enriching a first gaseous or liquid medium with a second gas or a second liquid and a reactor for carrying out the process |
| 09/22/1994 | DE4308250A1 Sorption of CO2 by CaCl2 from the Solvay soda process |
| 09/21/1994 | EP0616175A2 Environment decontaminating system having air cleaning and deodorizing function |
| 09/21/1994 | EP0616115A1 Exhaust gas purifying apparatus and method for internal combustion engine |
| 09/21/1994 | EP0615777A1 Process and device for selective catalytic NOx reduction in oxygen containing exhaust gases |
| 09/21/1994 | EP0545931B1 Preparation of three-way catalysts with highly dispersed ceria |
| 09/21/1994 | CN2177518Y Filter of system for recovering and cleaning of cold media |
| 09/21/1994 | CN1092388A Glass furnaces |
| 09/21/1994 | CN1092339A Method for the preparation of catalyst for refining exhaust gas |
| 09/21/1994 | CN1092336A FGD performance enhancement by hydroclone |
| 09/21/1994 | CN1025952C Low-temp. methanol washing device |
| 09/20/1994 | US5349117 Process for sorption separation |
| 09/20/1994 | US5348987 NOx removal catalyst containing an inorganic fiber |
| 09/20/1994 | US5348716 Process for purifying a gas containing nitric oxide |
| 09/20/1994 | US5348715 Processes to remove acid forming gases from exhaust gases |
| 09/20/1994 | US5348714 Liquid absorbing acidic gases and use thereof in diacidification of gases |
| 09/20/1994 | US5348609 Microelectronics |
| 09/20/1994 | US5348573 Annular scrubber |
| 09/20/1994 | US5348569 Sulfonated polymers for membranes for reverse osmosis |
| 09/20/1994 | US5347822 Process for drying CH2 F2 refrigerant utilizing zeolite |
| 09/20/1994 | CA1332047C Gas drying or fractioning apparatus and method |
| 09/20/1994 | CA1332023C Process for cooking and bleaching pulp |
| 09/17/1994 | CA2119167A1 Methods for dechlorynation disposal of polyvinyl chloride wastes and apparatus thereof |
| 09/16/1994 | CA2119093A1 Environment decontaminating system having air cleaning and deodorizing function |
| 09/15/1994 | WO1994020997A1 Solid electrolyte-electrode system for an electrochemical cell |
| 09/15/1994 | WO1994020677A1 A method of separating sulphur compounds |
| 09/15/1994 | WO1994020676A1 Process for purifying the combustion gases of a recovery boiler |
| 09/15/1994 | WO1994020411A1 Process for removal of iodine from a gaseous stream |
| 09/15/1994 | WO1994020206A1 Fluidized bed scrubber for use in gas cleaning system |
| 09/15/1994 | WO1994020205A1 Method and system for steam-reforming of liquid or slurry feed materials |
| 09/15/1994 | WO1994020199A1 Method and apparatus for cleaning flue gas |
| 09/15/1994 | WO1994020198A1 Process and device for utilizing the energy of flue gasses from coal-fired power stations |
| 09/15/1994 | WO1994020197A1 Separation of solutes in gaseous solvents |
| 09/15/1994 | WO1994020193A1 Gas purification system |
| 09/15/1994 | DE4406007A1 Catalyst for exhaust gas purification |
| 09/15/1994 | DE4321555C1 Process for producing mixed-oxide powders for denitration catalysts |
| 09/15/1994 | DE4318203C1 Rotary slide valve and use thereof |
| 09/15/1994 | DE4308087A1 Process for the separation of acrylic acid from the reaction gases of the catalytic oxidation of propylene and/or acrolein |
| 09/15/1994 | DE4307204A1 Arrangement for purifying liquids and/or gases |
| 09/15/1994 | CA2156637A1 Method and apparatus for cleaning flue gas |
| 09/14/1994 | EP0615100A1 Dehumidifier |
| 09/14/1994 | EP0614854A1 Process for the synthesis of mixed zirconium und cerium oxides based compositions, the obtained compositions and use thereof |
| 09/14/1994 | EP0614692A1 Catalysts and methods for denitrization |
| 09/14/1994 | EP0614691A1 Process for treating effluents from waste incinerating installations and product obtained by this process |
| 09/14/1994 | EP0614690A1 Treatment of incinerator exhaust gas |
| 09/14/1994 | EP0614682A1 Method for removing pollutants and purifying materials |
| 09/14/1994 | EP0614681A1 Gas supply systems |
| 09/14/1994 | EP0614443A1 Conversion of hydrogen sulfide to sulfur and hydrogen |
| 09/14/1994 | EP0614442A1 PROCESS AND COMPOSITION FOR NO x? and SO x? REDUCTION |
| 09/14/1994 | EP0614400A1 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 09/14/1994 | EP0614399A1 Ceria-alumina oxidation catalyst and method of use |
| 09/14/1994 | EP0614398A1 Oxidation catalyst and method of use |
| 09/14/1994 | EP0561904B1 High durability auto exhaust catalyst with low hydrogen sulfide emissions |
| 09/14/1994 | CN2176820Y Acid-fume absorber |
| 09/14/1994 | CN1091995A Ammonia-Limestone scrubbing with by-product for use in agriculture |
| 09/14/1994 | CN1091994A Energy-saving desulfurizing decontaminating agent for coal |
| 09/14/1994 | CN1091993A Method and apparatus for drying and purifying gas |