Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › 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
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)
11/1991
11/15/1991WO1991017828A1 Catalysts for the destruction of halogenated organics
11/15/1991CA2042506A1 Control of addition of conditioning agents to flue gas
11/15/1991CA2022637A1 Method of removal of acid components from a gas
11/14/1991WO1991017434A1 Process for controlling the proportion of air in a hot exhaust-gas stream, and oxygen probe for use in the process
11/14/1991WO1991017115A1 Growing sodium type x zeolite crystals
11/14/1991WO1991016970A1 Mixer assembly, catalyst assembly and use of said catalyst assembly
11/14/1991WO1991016965A1 Method and apparatus for increasing the degree of utilisation for a dry sorbent
11/14/1991WO1991016964A1 Dehumidifier
11/14/1991WO1991011390A3 Synthetic porous crystalline material its synthesis and use
11/14/1991DE4014908A1 REgulating purity of gypsum recovered from off-gas of power station - by purifying recovered from the hydrocyclone plant prior to recycling to absorption circuit
11/13/1991EP0456575A1 Process and apparatus for purifying, by adsorption, air to be distilled
11/13/1991EP0456341A2 Vapor recovery system
11/13/1991EP0456042A1 Process for determining the reactivity of a partly used suspension of limestone, circulating in a scrubber
11/13/1991EP0455773A1 Cold oxidation in gaseous phase
11/13/1991EP0408737A4 Membrane separation device and method of manufacture
11/13/1991EP0386013B1 Catalyzer with flow guiding body
11/13/1991CN1056161A Smoke elimination and dust removing method of aluminium smelting furnace and its equipment
11/13/1991CN1056064A Process of purifying h2s-and co2-containing gas
11/13/1991CA2042464A1 Process for the removing of nitrogen from exhaust gases while obtaining hno3
11/12/1991WO1991018398A1 Device for the recombination of hydrogen and oxygen and the use of said device
11/12/1991US5064803 Particle size
11/12/1991US5064801 Process for manufacturing a carbon catalyst
11/12/1991US5064792 Catalyst for the reduction of nitrogen oxides, a method for its preparation and the use thereof
11/12/1991US5064763 Biological process for purifying waste air
11/12/1991US5064626 Comprising iron polysulfide and inorganic support materials for removal from fluid feeds
11/12/1991US5064625 Method of removing nitrogen oxides from flue gases
11/12/1991US5064609 Hydrogen reducing atmosphere, jigs
11/12/1991US5064453 Air filter system
11/12/1991US5064451 Blowers, filters, perchloroethylene, dry cleaning
11/12/1991US5064450 Double wall forming an annulus
11/12/1991US5064446 Method of preparing high purity light gas by multiple-step gas separation
11/12/1991CA2082627A1 Device for the recombination of hydrogen and oxygen and the use of said device
11/12/1991CA1291981C Scavengers for the removal of impurities from arsine and phosphine
11/12/1991CA1291958C Method for eliminating reentry disulfides in a mercaptan extraction process
11/12/1991CA1291860C Water scavengers for hydrochloric acid streams
11/12/1991CA1291859C Sulphur oxide elimination process from a gas by means of an absorption mass regenerable through reaction with elemental sulphur
11/07/1991DE4019191A1 Plant for disposal of waste gases - combines chimney stack on top of lime washing appts. within single vertical structure
11/07/1991DE4015831C1 Washing out acid from dust free gas - by washing gas with aq. soln., removing acid formed, subjecting exhaust gas to droplet removal and adding fresh water
11/07/1991DE4014018A1 Gas purificn. using recyclable scrubber soln. - esp. for desulphurisation of fuel gas
11/06/1991EP0455521A1 Enhanced performance of alumina for the removal of low-level fluorine from gas streams
11/06/1991EP0455491A2 Catalysts and methods for denitrization
11/06/1991EP0455378A1 Process vessels
11/06/1991EP0455285A1 Process for cleaning a gas containing H2S and CO2
11/06/1991EP0455152A1 Process for the purification of exhaust gases
11/06/1991EP0454948A2 Process and apparatus for eliminating acid and heavy metals containing impurities from liquids
11/06/1991EP0454937A1 Combination filter for gaseous media and its use
11/06/1991EP0454885A1 Process for purification of gases and exhaust gases from pollutants
11/06/1991EP0451207A4 Method for reducing emissions from or increasing the utilizable energy of fuel for powering internal combustion engines
11/06/1991CN1055886A Pre-purification of air for separation
11/06/1991CN1014587B Selective adsorption of c02 on zeolites
11/05/1991US5063196 Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors
11/05/1991US5063193 Oxides of aluminum, cerium, copper, tin, chromium and manganese
11/05/1991US5063192 Catalyst for purification of exhaust gases
11/05/1991US5063035 Enhanced performance of alumina for the removal of low-level fluorine from gas streams
11/05/1991US5063034 Process for purifying by the wet method fumes containing nitrogen oxides
11/05/1991US5063030 Oxidation
11/05/1991US5062926 Solvent recovery apparatus
11/05/1991US5062911 Preparation of ceramic honeycomb structure having selectively sealed channels
11/05/1991US5062864 Gas filter element
11/05/1991US5062273 Method and apparatus for removal of gas from refrigeration system
11/05/1991CA1291787C Recovery of carbon dioxide from fuel cell exhaust
11/05/1991CA1291743C Catalyst for removing nitrogen oxides in exhaust gases
11/05/1991CA1291627C Removal of acid gases from a sour gaseous stream
11/04/1991CA2041751A1 Process vessels
11/02/1991CA2041157A1 Process of purifying an h2s- and co2-containing gas
10/1991
10/31/1991WO1991016529A1 Means for controlling exhaust temperature on a catalytically purified combustion engine
10/31/1991WO1991016528A1 Process and device for removing particles from exhaust gases
10/31/1991WO1991016225A1 Charge/purge control system for air dryer having limited charge time
10/31/1991WO1991016224A1 Charge/purge control system for air dryer with humidity control
10/31/1991WO1991016120A1 Process for purifying or conditioning exhaust gases
10/31/1991DE4113597A1 Purification of waste gas contg. prods. of incomplete combustion - by adsorption on zeolite
10/31/1991DE4031379A1 Reducing pollutant emissions in combustion processes - by spraying soln. contg. cyanamide, di:cyanamide and water-soluble calcium cpd. into combustion chamber
10/31/1991DE4013725A1 Removing metal carbonyl cpds. from gases - by washing with aq. soln. of salt of hypochlorous acid
10/31/1991DE4013409A1 Multistage condensation plant for removing wastes from exhaust air - plants removes solvents and volatile materials from air from the cleaning of tanks and road tankers
10/31/1991DE4013340A1 Breaking down polyhalogenated hydrocarbon cpds. - contg. adsorbed mercury, by heating in absence of oxygen to desorb mercury and breakdown halo-cpds.
10/31/1991DE4012982A1 Removing harmful (in)organic substance from gases - by addn. of finely divided substance with active surface and filtration
10/31/1991DE4012887A1 Verfahren zur reinigung von abgasen, insbesondere aus abfallverbrennungsanlagen Method for cleaning of waste gases, waste incineration plants in particular
10/31/1991CA2041411A1 Stack emission control system for removing organic pollutants from air
10/30/1991EP0454531A1 Process and apparatus for the preparation of ultra-pure nitrogen
10/30/1991EP0453926A2 Disposable carbon dioxide absorber
10/30/1991EP0453477A1 Compressed gas purifier
10/30/1991EP0253820B1 Filter cartridge
10/30/1991CN1055677A Pre-purification of air for separation
10/30/1991CN1055676A Vapour diffusers for process columns
10/30/1991CN1014496B So3 flue gas conditioning system
10/29/1991US5061467 Economic recovery and utilization of boiler flue gas pollutants
10/29/1991US5061465 Absorption/desorption; alkanolamine solution; regeneration of amine; for use in enhanced oil recovery
10/29/1991US5061464 Oxidation process and catalyst for use therefor
10/29/1991US5061462 Apparatus for producing a streamer corona
10/29/1991US5061458 Decontamination apparatus for environmental protection
10/29/1991US5061455 Apparatus for removing carbon dioxide from air
10/29/1991US5061408 Apparatus for mass transfer between a hot gas stream and a liquid
10/29/1991US5061407 Liquid distributor for gas-liquid contact apparatus
10/29/1991US5061300 Coalescer filter and method
10/29/1991US5061299 Air/gas/micro partical pollution control system
10/29/1991US5061297 Laminar flow
10/29/1991CA1291381C Fuel vapor recovery system
10/29/1991CA1291321C Removal of co- and/or h-s from gases
10/28/1991CA2058452A1 Process for controlling the proportion of air in a hot exhaust-gas stream, and oxygen probe for use in the process
10/24/1991WO1991016122A1 Disclosed for purifying exhaust gases, in particular those from waste-incineration plants
1 ... 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 ... 1360