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)
12/1991
12/10/1991US5071816 Catalyst for purification of exhaust gas from diesel engine
12/10/1991US5071633 Method of improving handling characteristics of froth of elemental sulfur particles
12/10/1991US5071629 Continuously operating; transporting blocks through flue; removal for cleaning; replacement
12/10/1991US5071622 Process for odor control
12/10/1991US5071552 Multiple bundle fluid separation apparatus
12/10/1991US5071454 Absorption with alkylene glycol ethers
12/10/1991US5071451 Permiselective membrane, pressure charging means, and condenser
12/10/1991US5071450 Pyrolysis of a carbon-containing organic compound to deposit carbon to narrow pare size; selective adsorption
12/10/1991US5071449 Using single vessel having multiple layers for selective adsorption by pressurization, depressurization and purging
12/10/1991US5071448 Polyether copolymers based on a bisphenol sulfone and an aromatic dihydroxy compound; improved permeability; gas or fluid separation
12/10/1991US5070893 Apparatus and method for removing washcoat remaining in the channels of freshly coated monolithic or honeycombed catalyst carriers and use of the apparatus
12/10/1991US5070703 Hybrid air conditioning system integration
12/09/1991WO1991018667A1 PROCESS USING SORBENTS FOR THE REMOVAL OF SOx FROM FLUE GAS AND OTHER GAS STREAMS
12/09/1991CA2064715A1 Process using sorbents for the removal of sox from flue gas and other gas streams
12/09/1991CA2043191A1 Dual converter engine exhaust system for reducing hydrocarbon emissions
12/07/1991CA2043910A1 Membrane nitrogen process and system
12/07/1991CA2037691A1 Base metal automotive exhaust catalysts with improved activity and stability
12/05/1991DE4117476A1 Dual-sensor mixt. ratio controller for IC engine - uses stored values of adaptive actualisation factor with reference to oxygen content downstream from catalytic converter
12/05/1991DE4112983A1 Biological filter for washing exhaust air from cattle sheds - where water flows downwards through media in tower in which air is drawn upwards by a fan
12/05/1991DE4017832A1 Ceramic spacer ring with shaped support faces - in contact with end faces of honeycomb bodies of exhaust catalyst
12/05/1991DE4017388A1 Automatic system for improving performance of biological gas filters - where filter medium moisture content is controlled by continuously measuring and adjusting bulk density and temp.
12/05/1991DE4017384A1 Substrate for biological gas cleaning - comprises array of closely-spaced plates parallel to gas flow to carry biological agent
12/05/1991DE4017230A1 Plant for cleaning air from spray-booths and metal degreasing appts. - uses mechanical filter, condenser and biological filter
12/04/1991EP0459962A1 Purification of process gas from a partial combustion of black liquor
12/04/1991EP0459928A1 Plant for treating a liquid flux in one phase contactor and recirculation de-gassing device
12/04/1991EP0459534A1 Monolith respectively honeycomb catalyst
12/04/1991EP0459396A1 Process for removing nitrogen oxides from exhaust gases
12/04/1991EP0458990A1 Method of concentrating chlorine gas
12/04/1991EP0458842A1 Apparatus and process for the elimination of atmospheric pollution.
12/04/1991EP0458790A1 A method for drying of gases, especially compressed air, a membrane for carrying out said method and a process for the manufacturing of said membrane.
12/04/1991EP0433303A4 Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
12/04/1991EP0412103B1 Electrically conductive honeycomb body, process for monitoring it and its use as a support for an exhaust gas catalyst
12/04/1991EP0324753B1 Process for manufacturing a calcium sulphate-containing solid secondary raw material
12/04/1991EP0266417B1 Reduction of no x? in flue gas
12/03/1991US5069987 Ductile metallic fibers, ceramic matrix
12/03/1991US5069886 Air pollution control
12/03/1991US5069830 Non-welded support plate or bed limiter for packed towers and method of making same
12/03/1991US5069694 Permeable envelope of carbon loaded paper containing desiccant, adsorbers, and(or) absorbers
12/03/1991US5069690 Nitrogen trifluoride from carbon tetrafluoride; hydrothermally treated zeolite
12/03/1991US5069689 Closed loop pollution control system
12/03/1991US5069688 Pressure swing gas separation
12/03/1991US5069686 Process for reducing emissions from industrial sterilizers
12/03/1991US5069038 Heating gas, heat exchanging
12/01/1991WO1991018662A1 Air purifying system
12/01/1991CA2083967A1 Air purifying system
12/01/1991CA2043538A1 Purification of process gas from a partial combustion of black liquor
11/1991
11/28/1991WO1991017814A1 Process and apparatus for minimizing pollutant concentrations in combustion gases
11/28/1991WO1991017809A1 Venting system
11/28/1991WO1991017803A1 Mobile airborne air cleaning station
11/28/1991DE4116904A1 Honeycomb exhaust gas assembly - for incorporation as catalyst substrate in motor vehicle exhaust catalyst
11/28/1991DE4116515A1 Cleaning gas to removed noxious vapours and gases - esp. organic substances using oil as absorbent
11/28/1991DE4016514A1 Destruction of organic substances - esp. aromatic and/or halogenated cpds. in liq. or gases by irradiation with UV
11/28/1991CA2063808A1 Process and apparatus for minimizing pollutant concentrations in combustion gases
11/27/1991EP0458598A2 Facilitated liquid membranes for olefin/paraffin gas separations and related process
11/27/1991EP0458350A1 Improved control of pressure swing adsorption operations
11/27/1991EP0458217A2 Oxygen recovery from turbine exhaust using solid electrolyte membrane
11/27/1991EP0458171A1 Method and apparatus for the separation of a mixture of two gaseous components
11/27/1991EP0458045A1 Metal carrier matrix for a catalytic reactor
11/27/1991EP0457895A1 Device for continuously cleansing the exhaust gases of a vacuum installation.
11/27/1991EP0457832A1 Low temperature process for the reduction of nitrogen oxides in an effluent
11/27/1991EP0263872B1 Alkaline earth metal spinels and processes for making and using same
11/27/1991CN1056441A Process for dehydration of gases and composite permeable membranes therefor
11/27/1991CN1056440A Modified decarbonizing or desulfurizing process by physical absorption
11/26/1991WO1991018670A1 Polyoxometalate intercalated layered double hydroxides
11/26/1991US5068484 Process for the hydroconversion of a feedstock comprising organic compounds having a tendency to readily form polymer compounds
11/26/1991US5068218 Corrugated sheets of metal layers
11/26/1991US5068217 Impregnation of an iron compound with a gold compound and roasting
11/26/1991US5067974 Apparatus for purifying pollutant gases
11/26/1991US5067972 Absorption, solvent extraction
11/26/1991US5067971 Process for dehydration of gases and composite permeable membranes therefor
11/26/1991CA2043183A1 Control of pressure swing adsorption operations
11/26/1991CA2040798A1 Facilitated liquid membranes for olefin/paraffin gas separations and related process
11/26/1991CA1292426C Method for cleansing gas and apparatus herefor (i)
11/26/1991CA1292424C Structured "wv" packing elements
11/26/1991CA1292391C Deodorization and cleaning of medium temperature wet off-gases derived from burning of wet waste sludge
11/25/1991CA2042912A1 Oxygen recovery from turbine exhaust using solid electrolyte membrane
11/25/1991CA2042853A1 Oxygen extraction from externally fired gas turbines
11/23/1991CA2042910A1 Process and installation for the separation of a mixture of two gaseous components
11/21/1991EP0457480A1 Catalytic reduction
11/21/1991EP0457402A1 Gas duct with cleaning unit
11/21/1991EP0457352A1 Reactor with internal heat exchange and with a solid catalyst
11/21/1991EP0457225A1 Control of addition of conditioning agents to flue gas
11/21/1991EP0457203A1 Process for the emission-free drying of a substance in a drying drum
11/21/1991EP0457059A1 Process for removal of nitrogen oxides producing HNO3
11/21/1991EP0457005A1 Process and device for removal of acids from organic acid containing solvents or solvent mixtures originating from waste air or gas
11/21/1991EP0456877A1 Method of removal of acid components from a gas
11/21/1991EP0456809A1 Membrane process for removing water vapor from gas
11/21/1991EP0456797A1 Process for treating gases.
11/21/1991EP0376971B1 Process and installation for recovering reusable gas from waste through pyrolysis
11/20/1991CN1056293A Machine for making pure nitrogen by pressure variation and adsorption
11/20/1991CN1056292A Process for producing oxygen enriched product steam
11/20/1991CN1056260A Apparatus for calalytic oxidation of harmful ingredients in carrier gas cooled in engineering processes
11/20/1991CN1056259A Process for purification of acidic gas
11/19/1991US5066470 Contacting with aqueous solution containing chloride salt and precipitate; oxidation of ferrousto ferric chloride
11/19/1991US5066392 Apparatus for microbiological decomposition of organic waste
11/19/1991US5066317 Compressed gas dryer system with pressure retention
11/19/1991US5066316 Exhaust gas purifying apparatus
11/19/1991US5066314 Method of removal of acid components from a gas
11/19/1991US5065576 Exhaust gas purifying device for a diesel engine
11/19/1991CA1292177C Low temperature preparative gas chromatography apparatus
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