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)
01/1977
01/04/1977	US4001254 Isothiocyanopyridine derivatives
01/04/1977	US4001143 Catalyst preparation
01/04/1977	US4001112 Valves rather than sliding seals
01/04/1977	US4000993 Process for scrubbing gas streams
01/04/1977	US4000991 Method of removing fly ash particulates from flue gases in a closed-loop wet scrubbing system
01/04/1977	US4000990 Adsorption process
01/04/1977	US4000978 Thermal recombiner
12/1976
12/28/1976	US4000205 Purification of feed gas streams containing ferric chloride in oxychlorination
12/28/1976	US3999963 Scrubbing a hydrocarbon gas stream to remove water, oils, and tars
12/21/1976	US3998930 Iridium-nickel exhaust gas conversion catalyst and process
12/21/1976	US3998613 Apparatus for removing sulfur dioxide and particulate matter from flue gases
12/21/1976	US3998599 Nitrogen oxides; catalytic converter
12/14/1976	US3997652 Of hydrogen fluoride, sodium fluoride absorbent
12/14/1976	US3997651 Lanthanum-silver alloy, reducing carbon monoxide and nitrogen dioxide emissions
12/14/1976	US3997633 Contact towers with leak-proof support of improved plate subassembly
12/14/1976	US3997631 Gas-liquid mixing apparatus using an ejector
12/14/1976	US3997415 Process for removing sulfur dioxide and nitrogen oxides from effluent gases
12/14/1976	US3996740 Exhaust systems
12/07/1976	US3996339 Reduction of nitrogen dioxide to nitrogen monoxide with ferrous sulfate
12/07/1976	US3996335 Metal sulfides, refractories; absorption
12/07/1976	US3996317 Gas-liquid scrubber with resilient flexible grids
12/07/1976	US3996316 Feed system for packed bed
12/07/1976	US3996029 Purification of gases containing hydrogen fluoride impurity
12/07/1976	US3996028 Process for purification of argon from oxygen
12/07/1976	US3996025 Apparatus for distributing flowing media from one flow cross section to a flow section different therefrom
11/1976
11/30/1976	US3995010 Purification process
11/30/1976	US3995006 Sulphur dioxide absorption system
11/30/1976	US3995005 Treatment of flue gases containing boron compounds
11/30/1976	US3994831 Metallic catalyst support and catalytic metal coated on same
11/30/1976	US3994790 Method of treating a waste gas
11/30/1976	US3994691 Apparatus for the recovery of sulphuric acid from industrial waste gases
11/30/1976	US3994074 Liquid seal pump with sulfuric acid dehumidification
11/23/1976	US3993816 Hollow fiber assembly for use in fluid treatment apparatus
11/23/1976	US3993731 Reduction with ammonia; iron or copper and aluminum sulfate catalyst
11/23/1976	US3993730 Purification of coke oven gas with production of sulfuric acid and ammonium sulfate
11/23/1976	US3993572 Redox catalysts
11/16/1976	US3992510 Combustion, scrubbing, sodium thiosulfate
11/16/1976	US3992508 Method of removing nitrogen oxides from a gas containing nitrogen oxides
11/16/1976	US3992492 Apparatus for contacting a gas and a liquid
11/16/1976	US3992469 Effluent fractionation in simulated moving-bed adsorption processes
11/16/1976	US3992176 Dry scrubbing tar and fluoride laden gases
11/16/1976	US3992175 Method of and device for chromatographic separation of fluid mixtures into fractions
11/16/1976	US3991481 Process for recovering volatile organic liquids
11/09/1976	US3991167 Process for lowering nitrogen oxides in effluent gases
11/09/1976	US3991162 Absorption system
11/09/1976	US3991161 Method of removing nitrogen oxides from a gas and for converting same to ammonium sulfate
11/09/1976	US3990998 High surface area ruthenium bonding supports on monolithic ceramics
11/09/1976	US3990995 Aluminum borate support, rhodium
11/09/1976	US3990971 Metal cyanide complex compound disposal
11/09/1976	US3990872 Waterproof spun-bonded olefin sheets
11/02/1976	US3989811 Process for recovering sulfur from fuel gases containing hydrogen sulfide, carbon dioxide, and carbonyl sulfide
11/02/1976	US3989810 With oxidative lignins
11/02/1976	US3989801 Metal nitrito compounds
11/02/1976	US3989798 Vanadium oxide
11/02/1976	US3989797 Process for removing sulfur oxides from gas streams
11/02/1976	US3989796 Method for removing sulfur dioxide in the form of calcium sulfite from combustion exhaust gas
11/02/1976	US3989487 Packaged gas stream hydrocarbon dewpoint control apparatus
11/02/1976	US3989484 Separation of isotopes by cyclical processes
11/02/1976	US3989483 Method and device for separating gaseous or vaporous materials, especially isotopes, by means of separation nozzles
11/02/1976	US3989478 Upgrading a methane gas stream
11/02/1976	US3989477 Gas enriching apparatus
11/02/1976	US3989465 Apparatus for controlling reaction conditions in a sulfur dioxide scrubber
11/02/1976	US3989464 Alkaline hydroxide scrubbing
10/1976
10/26/1976	US3988423 Method for removing harmful materials from waste gas
10/26/1976	US3988422 Method of treating converter gas
10/26/1976	US3988263 Thermally stable coprecipitated catalysts useful for methanation and other reactions
10/26/1976	US3988129 Process for removing sulfur dioxide from gas streams
10/26/1976	US3988113 Apparatus for treating engine exhaust gases
10/19/1976	US3987154 Process for removal of hydrogen sulphide and ammonia from gaseous streams
10/19/1976	US3987153 Multistage catalytic oxidationsulfur dioxide
10/19/1976	US3987149 Method for removing sulfur dioxide from exhaust gas
10/19/1976	US3987148 Treating gas and wetted granular material in panel bed
10/19/1976	US3987147 Process to desulfurize gas and recover sulfur
10/19/1976	US3987146 Simultaneous removal of nitrogen oxides and sulfur oxides from combustion gases
10/19/1976	US3986849 Selective adsorption process
10/19/1976	US3986848 Gas reheating system using hot precipitator
10/19/1976	US3986528 Reticulated tube of reinforced ceramic fibers
10/19/1976	US3986350 Cracking catalysts
10/12/1976	US3985863 Process for the separation and recovery of ammonia and acid gases
10/12/1976	US3985861 Process for removing sulfur compounds from claus off-gases
10/12/1976	US3985860 Reacting sulfur dioxide with sodium carbonate, calcium hydroxide or carbonate to form calcium sulfite which is oxidized to calcium sulfate
10/12/1976	US3985854 Rh from car exhaust catalystsreacting hydrochloric acid and bromine with exhaust catalysts to leach out platinum or rhodium
10/12/1976	US3985846 Ceramic firing process
10/12/1976	US3985683 Catalyst for reducing the toxic contaminants of combustion engine exhaust gas
10/12/1976	US3985682 Method of preparing solid contact materials
10/12/1976	US3985529 Method for the production of liquid sulphur dioxide
10/12/1976	US3985523 Heat exchanging
10/12/1976	US3985510 Flash reactor unit
10/05/1976	US3984523 Alkali metal hydroxide
10/05/1976	US3984522 Method of removing nitrogen monoxide from a nitrogen monoxide-containing gas
10/05/1976	US3984328 Membrane on a hollow cord
10/05/1976	US3984316 Treating foul refinery waste waters with absorber gas
10/05/1976	US3984312 Process for insolubilizing potentially water pollutable wastes from sodium or ammonium type sulfur dioxide air pollution control systems
10/05/1976	US3984296 Photochemical
10/05/1976	US3984218 Activated carbon, desorption with steam, regeneration with inert gas
10/05/1976	US3984206 Apparatus for the combustion of halogenated hydrocarbons
09/1976
09/28/1976	US3983283 Honeycombed structures having open-ended cells formed by interconnected walls with longitudinally extending discontinuities
09/28/1976	US3983218 Method for dry removal of sulfur dioxide from furnace flue, coal and other gases
09/28/1976	US3983217 Method for removing sulfur dioxide from waste gases
09/28/1976	US3983216 Process for the removal of vinyl chloride from gas streams

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