Patents
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)
12/1997
12/02/1997US5693529 Geothermal power plant desulfurization system
12/02/1997US5693302 Reacting gas with oxygen and a catalyst comprising gold or palladium particles on titanium dioxide support, wherein carbon monoxide and hydrogen impurities react with oxygen to form carbon dioxide and water
12/02/1997US5693301 Conducting gas upward through apertured plate bearing layer of aqueous absorbent suspension containing lime or limestone and buffered with weak organic acid, supplying oxygen containing gas to lower part of absorbent layer
12/02/1997US5693300 Providing fluid reactant of isocyanic acid, ammonia, and/or hydrazine, contacting with a catalyst to activate, contacting activated catalyst species with nox
12/02/1997US5693299 Using a cerium-zirconium mixed oxide catalyst
12/02/1997US5693298 Adsorption of salts and catalyst poisoning compounds onto flame arresting metal filter screen coated with bound alumina or zeolite, then catalytic oxidation of volatile organic smoke contaminants
12/02/1997US5693297 Gas treatment method
12/02/1997US5693294 Having first substantially unobstructed flow region and second more obstructed flow region
12/02/1997US5693293 Apparatus for the purification of waste gas
12/02/1997US5693230 Gas purification, separation by catalytic absorption through porous fiber walls
12/02/1997US5693212 Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions
12/02/1997US5693195 Method of irradiation with electron beams
12/02/1997US5693124 Accumulator desiccant bag
12/02/1997US5693123 Rotary concentrator with extruded adsorption blocks
12/02/1997US5693121 Providing predominantly nitrogen feed gas mixture under pressure to membrane separator unit comprising semi-permeable membrane with respect to which largest fraction of other gases is at least 20 times more permeable than nitrogen
12/02/1997US5692481 Method and apparatus for reducing contaminants in exhaust gases of an engine
12/02/1997US5692373 For an internal combustion engine
12/02/1997CA2085016C Adsorbent beds for pressure swing adsorption operations
12/02/1997CA1339564C Process for steam reforming of hydrocarbons
11/1997
11/27/1997WO1997044126A1 A method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid
11/27/1997WO1997044120A1 Organic solvent recovering system and organic solvent recovering method
11/27/1997WO1997044119A1 Integrated voc entrapment system for regenerative oxidation
11/27/1997WO1997044118A1 Fluid storage and delivery system comprising high work capacity physical sorbent
11/27/1997DE19716611A1 Nitrogen oxide filter for vehicle exhaust
11/27/1997DE19631332A1 Process for removing high boiling point components from solvents used for e.g. gas scrubbing, liquid/liquid extraction
11/26/1997EP0809313A2 Electrochemical cells and their production, and electrochemical devices using such electrochemical cells
11/26/1997EP0808756A1 Air treatment system for compressed air, in particular for pneumatic brake systems of vehicles
11/26/1997EP0808660A1 Electrostatic dust collector
11/26/1997EP0808652A1 Method of controlling emission from gasoline engine
11/26/1997EP0808651A1 Large capacity vacuum pressure swing adsorption process and system
11/26/1997EP0808650A1 Process for removing pollutants from exhaust gases
11/26/1997EP0808435A1 Single handle mixing valve with an improved ball valve
11/26/1997EP0808210A1 Process for purifying flue gas containing nitrogen oxides
11/26/1997EP0808209A1 Catalyst
11/26/1997EP0740577B1 Reactive composition and method for purifying a hydrogen chloride-containing gas
11/26/1997EP0692044A4 Method for reusing spent gas from an ozone bleaching reactor
11/26/1997CN2268571Y Non-powered cement collector
11/26/1997CN1166142A Heat treated activated carbon for denitration, process for preparing the same, method of denitration using the same, and system of denitration using the same
11/26/1997CN1165911A Catalyst for purifying exhaust gas emitted from diesel engine
11/26/1997CN1165709A Wholly-enclosed wetting desulphurization smoke purifier
11/26/1997CN1036506C Silica-gel removing and fluorine recovering method and appts.
11/25/1997US5691263 Amorphous perovskite catalysts for nitrogen oxide reduction and methods of preparing the same
11/25/1997US5691192 Devolitilization of compounds from biological filters, such as removal of styrene
11/25/1997US5690899 Scrubbing with brine
11/25/1997US5690898 Expanding the effluent without extensive cooling
11/25/1997US5689974 Method and apparatus for pre-purification for air cryogenic separation plant
11/25/1997US5689893 For use in a gas dryer system
11/25/1997CA1339556C Adiabatic separator
11/20/1997WO1997043884A1 Reflow soldering device
11/20/1997WO1997043528A1 Silencer
11/20/1997WO1997043527A1 Heat exchanger efficiency control by differential temperature
11/20/1997WO1997043221A1 Process for treating the scrubbing water from the gas scrubbing process in an iron ore reduction plant
11/20/1997WO1997043214A1 Cerium oxide and zirconium oxide based composition, method of preparation and utilisation in catalysis
11/20/1997WO1997043212A1 Method for eliminating impurities contained in a gas compound
11/20/1997WO1997043035A1 Exhaust gas catalyst comprising multilayered upstream zones
11/20/1997WO1997043034A1 Regenerable catalyzed trap and apparatus, and method of using the same
11/20/1997WO1997043033A1 Process for the purification of gases containing hydrogen sulphide
11/20/1997WO1997043032A1 Incineration fume cleaning plant with internal recycling
11/20/1997WO1997043031A2 METHOD AND APPARATUS FOR NOx ABATEMENT IN LEAN GASEOUS STREAMS
11/20/1997WO1997043030A2 Method and apparatus for remediation of toxic flue gases
11/20/1997WO1997043028A1 Liquid and gas purification and filtration
11/20/1997DE19704160A1 Electrolytic module useful for air dehumidifier
11/20/1997DE19621751C1 Apparatus for incinerating inorganic refuse esp. small-scale municipal refuse
11/20/1997CA2254808A1 Liquid and gas purification and filtration
11/20/1997CA2249006A1 Process for treating the scrubbing water from the gas scrubbing process in an iron ore reduction plant
11/19/1997EP0808077A2 Electrode structure for high temperature heated body
11/19/1997EP0807953A1 Inductively coupled RF plasma reactor having an overhead solenoidal antenna
11/19/1997EP0807599A1 Process for the removal of impurities from gas compositions
11/19/1997EP0807466A2 Honeycomb structural body
11/19/1997EP0807458A2 Method of burning of pollutants in supercritical carbon dioxide
11/19/1997EP0807457A1 Process for removing selenium from a selenium ion containing liquid
11/19/1997EP0807456A1 Thermal process for removal of contaminants from process streams
11/19/1997EP0807154A2 Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
11/19/1997EP0806981A1 Absorber fluid circuit for vapor recovery system
11/19/1997EP0806980A1 Adsorption air conditioning system
11/19/1997EP0737140A4 Coated fabric for use with nonazide gas generants
11/19/1997CN1165283A Air separation method and its apparatus
11/19/1997CN1165051A High efficiency flue gas desulfurization technology
11/19/1997CN1165050A Solid polymer electrolytic module and its making method and dehumidifier used it
11/18/1997US5689798 Method and apparatus for removing undesirable chemical substances from gases, exhaust gases, vapors, and brines
11/18/1997US5688740 Purification of exhaust gases with platinum group, nickel group catalyst
11/18/1997US5688479 Process for removing HCl from hydrocarbon streams
11/18/1997US5688478 Dehydrosulfurization and desulfurization hydrocarbon streams using scavengers
11/18/1997US5688474 Oxidation catalysts for exhaust systems for pollution control
11/18/1997US5688307 Separation of low-boiling gases using super-glassy membranes
11/18/1997US5688306 Apparatus and method to intermittently manufacture and dispense nitrogen gas
11/18/1997US5688305 Drying air using desiccants, freezing then heating
11/18/1997US5688147 Interchangeable key card edge connecting
11/18/1997US5687745 Exhaust gas scrubbing device
11/18/1997US5687656 Denitration apparatus for a caol-fired boiler
11/18/1997US5687584 Natural gas
11/18/1997US5687565 Catalytic converter
11/13/1997WO1997041962A1 Inductive radial-discharge funnel-shaped nozzle
11/13/1997WO1997041948A1 Catalytic reactor for the decomposition of ozone
11/13/1997WO1997041947A1 An injection lance for uniformly injecting anhydrous ammonia and air into a boiler cavity
11/13/1997WO1997041946A1 Bypass system and method for regenerative thermal oxidizers
11/13/1997WO1997041941A1 Filtering material and process for the production thereof, and adsorption filter produced from said filtering material
11/13/1997WO1997022794A3 A method and apparatus for reducing pollutants and contaminants in exhaust gases of an engine
11/13/1997DE19718804A1 Economical, constant pressure wood drying plant with effluent gas cleaning equipment
11/13/1997DE19620310A1 Verfahren zum Behandeln von Waschwasser aus der Gaswäsche einer Eisenerzreduktionsanlage A method of treating wash water from the gas scrubbing an iron ore reduction plant