| 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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| 10/14/1992 | EP0508005A1 Production of hydrocarbon fractions by hydrocracking |
| 10/14/1992 | EP0507806A1 Adsorbent activated carbonized polyarylamides |
| 10/14/1992 | EP0507777A1 A method of purifying air from combustible pollutants and an apparatus for performing the method. |
| 10/14/1992 | EP0448585B1 Process for the production of a catalyst for the removal of oxides of nitrogen from exhaust gases |
| 10/14/1992 | CN1065218A Process and unit for desulfuration of flue gases |
| 10/14/1992 | CN1018670B Process for intrafurnace desulfurization |
| 10/14/1992 | CN1018616B Deodorization utensil |
| 10/13/1992 | US5155083 Glass fiber cloth acid-treated on surface to remove alumina and calcium oxide; coated with silica, binder, catalyst; roasting, molding |
| 10/13/1992 | US5155077 Catalyst for purification of lean-burn engine exhaust gas |
| 10/13/1992 | US5154906 Redox-potential control for hydrogen peroxide in nitric acid |
| 10/13/1992 | US5154902 Using copper alkali aluminum silicate catalyst |
| 10/13/1992 | US5154901 Passing through heat resistant filter carrying catalyst of alkali metal, zinc, tin or transition metal, rare earth metal |
| 10/13/1992 | US5154900 Method for purifying high-temperature reducing gas |
| 10/13/1992 | US5154859 Heat and material exchanging device and method of manufacturing said device |
| 10/13/1992 | US5154739 Solvent recovery treatment method |
| 10/13/1992 | US5154737 Pressure swing adsorption |
| 10/13/1992 | US5154736 Process for the separation of a gas mixture |
| 10/13/1992 | US5154735 Adsorption, absorption, desorption; regeneration of beds |
| 10/13/1992 | CA1308537C Method for removing the sulphur content of a weak gas containing sulphurdioxide |
| 10/08/1992 | DE4143331A1 Gas transport by surface diffusion - through narrow passages in solid body, esp. for atomic oxygen@ prodn. |
| 10/08/1992 | DE4110940A1 Arrangement to prevent cooling below dew point - in and downstream of smoke desulphurisation assembly |
| 10/08/1992 | DE4109267C1 Hydrogen sulphide, ammonia and hydrogen cyanide absorption from process gas - by using circulating wash contg. aq. ammonium soln. and clean water and working up loaded absorption soln. obtd. from hydrogen sulphide absorber by reverse osmosis |
| 10/07/1992 | EP0507590A1 Catalyst for purifying exhaust gas |
| 10/07/1992 | EP0507422A1 Gasification-combined power plant |
| 10/07/1992 | EP0507216A1 Composite catalytic converter |
| 10/07/1992 | EP0507065A1 Process for enriching oxygen |
| 10/07/1992 | EP0506787A1 Process and apparatus for removal of impurities from flue gases. |
| 10/07/1992 | EP0506701A1 Composite diaphragm, process for producing it and its use. |
| 10/06/1992 | USH1108 In situ regeneration of a sorption medium |
| 10/06/1992 | US5152970 Selective oxidation of hydrogen sulfide using metal sulfide catalysts so that elemental sulfur is deposited on a porous support and evaporating the sulfur in the absencce of oxygen to prevent the formation of sulfur oxides |
| 10/06/1992 | US5152916 Aqueous aldehyde solutions for trapping hydrogen sulfide in natural gas and crude oil producing plants |
| 10/06/1992 | US5152887 Process for reclaiming waste gas treatment chemical |
| 10/06/1992 | US5152813 Nitrogen adsorption with a Ca and/or Sr exchanged lithium X-zeolite |
| 10/06/1992 | US5152812 Heat exchanging inert gas stream with regenerated gas stream, separating from solvent, expanding to cool and passing heat exchanged regenerated gas stream through a vacuum pump in cycles |
| 10/06/1992 | CA2059330A1 Composite catalytic converter |
| 10/06/1992 | CA1308364C Permeation process for separating ammonia from a gas mixture |
| 10/06/1992 | CA1308237C Catalyst bed for exothermal reactions between gases or fluids |
| 10/06/1992 | CA1308234C Process and device for the deacidification of a gas containing h_s and(or) co_, and mercaptans |
| 10/05/1992 | WO1992017410A1 Method for removing sulphur compounds from water |
| 10/01/1992 | WO1992016478A1 Process and apparatus for separating impurities from hydrocarbons |
| 10/01/1992 | WO1992016455A1 ADVANCED REBURNING FOR REDUCTION OF NOx EMISSIONS IN COMBUSTION SYSTEMS |
| 10/01/1992 | WO1992016454A1 Reduction of nitrogen oxide in effluent gases using nco free radicals |
| 10/01/1992 | WO1992016453A1 Reduction of sulfur emissions from coal-fired boilers |
| 10/01/1992 | WO1992016306A2 Manufacture of high precision electronic components with ultra-high purity liquids |
| 10/01/1992 | WO1992016284A1 Filter for the purification of gases |
| 10/01/1992 | WO1992016275A1 Continuous chromatography |
| 10/01/1992 | WO1992013628A3 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures |
| 10/01/1992 | DE4115369A1 Minimising nitrogen oxide cpds. emission from engine or furnace - using agent subjected to chemical and/or physical pretreatment, avoiding need for catalyst |
| 10/01/1992 | DE4110395A1 Katalysator Catalyst |
| 10/01/1992 | DE4109732A1 Verfahren zum reinigen von abluft A method for purifying exhaust air |
| 09/30/1992 | EP0506642A1 Treatment of particulate material contaminated with poly halogenated aromatics |
| 09/30/1992 | EP0506588A1 Process for treating gases resulting from the electrolytic production of fluor, which may contain uranium compounds |
| 09/30/1992 | EP0506282A1 Bonded zeolitic adsorbent agglomerates and method of preparation thereof |
| 09/30/1992 | EP0506161A1 Process for the preparation of sulphur from a gas containing hydrogen sulphide |
| 09/30/1992 | EP0506160A1 Process for eliminating hydrogen sulphide from gases by means of activated carbon |
| 09/30/1992 | EP0506132A1 Method for removal of mercury in exhaust gas |
| 09/30/1992 | EP0506010A1 Method for separating a liquid component from a solution containing two or more liquid components |
| 09/30/1992 | EP0505882A1 Process and apparatus for catalytic reduction |
| 09/30/1992 | EP0505881A1 Process and apparatus for the regeneration of spent De-NOx catalysts |
| 09/30/1992 | EP0505853A1 Process to prevent H2S emissions during the catalytic purification of automobile exhaust gases |
| 09/30/1992 | EP0505832A1 Filter or catalyst body |
| 09/30/1992 | EP0505772A2 Process for preparing sugar from beet sugar |
| 09/30/1992 | EP0505607A1 Sulfur dioxide removal process with gypsum and magnesium hydroxide production |
| 09/30/1992 | EP0505462A1 High-temperature three-way catalyst |
| 09/30/1992 | EP0305475B1 Method for preparing and use of a new midbarrel catalyst |
| 09/30/1992 | EP0277246B1 Wet-process stack gas purification method and apparatus |
| 09/30/1992 | EP0252132B1 Installation for fume purification |
| 09/30/1992 | CN1064940A Method and apparatus for treating and storing sulfur containing gas |
| 09/30/1992 | CN1064822A Catalytic body and process for preparing them |
| 09/29/1992 | US5151395 Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor |
| 09/29/1992 | US5151263 Formation of carbon dioxide, hydrogen chloride and hydrogen fluoride from chlorofluoroalkanes and alumina-silica catalysts |
| 09/29/1992 | US5151258 NOx reduction and control using hydrogen peroxide in the absorber column |
| 09/29/1992 | US5151257 Removal of hydrogen sulfide from fluid streams |
| 09/29/1992 | US5151256 Coal combustion apparatus provided with a denitration |
| 09/29/1992 | US5151253 Intumescent flakes |
| 09/29/1992 | US5151251 Housings with impurity absorbers which expand as they get filled |
| 09/29/1992 | US5151116 Sorption column for waste-gas cleaning |
| 09/29/1992 | US5151110 Molecular sieve sensors for selective detection at the nanogram level |
| 09/29/1992 | US5150604 Method for determining the end of useful life of an inert gas purifier and apparatus therefore |
| 09/29/1992 | US5150573 Catalyst arrangement with flow guide body |
| 09/29/1992 | CA2106198A1 Process and apparatus for removal of h2s from gaseous streams using membrane purification of recycle solution |
| 09/29/1992 | CA1308091C Dryer regeneration through heat of compression and pressure swing desorption |
| 09/29/1992 | CA1308037C Chemical filter |
| 09/29/1992 | CA1307908C Process for the purification and reheating of exhaust gases |
| 09/29/1992 | CA1307907C Process for removing sulphur from the waste gas of a reduction shaft furnace |
| 09/29/1992 | CA1307906C Method for the purification of hydrogen sulfide-containing gases |
| 09/29/1992 | CA1307905C Method of treating flue gases and combustion residues |
| 09/26/1992 | WO1992016283A1 Process for cleaning exhaust air |
| 09/26/1992 | CA2106983A1 Process for purifying exhaust air |
| 09/24/1992 | DE4109343A1 Control of flue gas desulphurisation process from boiler temp. profile - by addn. of dry lime powder and liq. suspension to the combustion furnace |
| 09/24/1992 | DE4109305A1 Reagent injection to process or flue gas stream - e.g. for ammonia addition in catalytic nitrogen oxide(s) redn. of stack gases |
| 09/24/1992 | DE4108934A1 Smoke collector duct with permeable filtration wall - for purifying meat and fish smoke-house exhaust fumes |
| 09/24/1992 | DE4108820A1 Kontinuierliche chromatographie Continuous chromatography |
| 09/23/1992 | EP0505347A1 Process for separating polychlorinated dioxins and furans from gases |
| 09/23/1992 | EP0504727A1 Cyanocobaltate oxygen adducts |
| 09/23/1992 | EP0504719A1 Exhaust filter and/or catalytic converter |
| 09/23/1992 | EP0504524A1 Improvements in pressure swing adsorption plants |
| 09/23/1992 | EP0504498A1 Process and device for the regeneration of the washing liquid of air scrubbers |
| 09/23/1992 | EP0504476A1 Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream |
| 09/23/1992 | EP0504389A1 Composite gas filtering unit. |