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)
07/1998
07/07/1998CA2219859A1 Cryogenic hybrid system for producing low purity oxygen and high purity nitrogen
07/02/1998WO1998028381A1 Corrosion inhibitor
07/02/1998WO1998028248A1 Process and plant for the production of methanol
07/02/1998WO1998028226A1 Method for purifying a cryogenic fluid by filtration and adsorption
07/02/1998WO1998028071A1 Process and plant for reforming hydrocarbonaceous feedstock
07/02/1998WO1998028070A1 Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr
07/02/1998WO1998028063A1 Method for treating exhaust gas of internal combustion engines functioning with sulphur-containing fuel
07/02/1998WO1998028062A1 Process for recovering cf4 and c2f6 from a gas
07/02/1998WO1998028061A1 Improved fluid fractionator
07/02/1998WO1998009699A3 Plasma-assisted catalytic reduction system
07/02/1998CA2275962A1 Method for purifying a cryogenic fluid by filtration and adsorption
07/01/1998EP0851331A1 Membrane control system and process
07/01/1998EP0850686A1 Thermally insulated reactor
07/01/1998EP0850676A1 Catalyst for removing organic halogen compounds, preparation method thereof and method for removing organic halogen compounds
07/01/1998EP0850293A1 Succinic acid derivative degradable chelants, uses and compositions thereof
07/01/1998EP0850191A1 Process and device for separating hydrogen from a gas mixture
07/01/1998EP0850102A1 NO x? CATALYST AND METHOD OF USING THE SAME
07/01/1998EP0850101A1 Methods and apparatus for treating waste gas streams from wood burning processes
07/01/1998EP0840839A4 Improved combined electrically heatable converter body
07/01/1998EP0783469B1 Device for abating carbon monoxide in airbags
07/01/1998EP0760919B1 Sanitizable slider diaphragm valve
07/01/1998EP0759803B1 Composite structure including a solid electrolyte and at least one volume electrode
07/01/1998EP0547209B1 Method and apparatus for purifying contaminated gases
07/01/1998CN1186192A Tube for heat exchanger
07/01/1998CN1185989A Apparatus for treating waste gas
07/01/1998CN1185988A Technology for treating low temperature plasma waste gas
07/01/1998CN1185987A Regenerative desiccant air dryer
07/01/1998CN1038908C Method and apparatus for air separation
06/1998
06/30/1998US5774816 Apparatus and method for cleaning a vessel
06/30/1998US5773621 Gas dispersion pipe for gas-liquid contact, and device for gas-liquid contact making use thereof
06/30/1998US5773529 Method and apparatus which removes odor and pollutants when preparing cullet for use in an electrostatic bed filter
06/30/1998US5773380 Compositions using high-potassium zeolite A
06/30/1998US5773105 Absorbent packet
06/30/1998US5773103 Filter media
06/30/1998US5772973 Exhaust gas cleaner and method for removing nitrogen oxides
06/30/1998US5772972 Catalyst/hydrocarbon trap hybrid system
06/30/1998US5772738 Multifunctional air filter and air-circulating clean unit with the same incorporated therein
06/30/1998US5772737 Process for treating a gas mixture by pressure swing adsorption
06/30/1998US5772735 Supported inorganic membranes
06/30/1998US5772734 Purification of gas streams by scrubbing, stripping, condensation and separation
06/30/1998US5772733 Natural gas liquids (NGL) stabilization process
06/30/1998US5772710 Air treating system
06/30/1998US5772709 Apparatus for removing ammonia and carbon dioxide gases from a steam
06/30/1998US5771689 Pipe evaporator for feeding additional fuel into the exhaust gas
06/30/1998US5771686 Method and apparatus for operating a diesel engine
06/30/1998US5771685 In an exhaust passage of an internal combustion engine
06/30/1998US5771684 For diverting a substrate gas stream from a first to second flow path
06/30/1998CA2145654C Remote region vacuum regulator
06/30/1998CA2120570C Regenerative thermal oxidizer
06/30/1998CA2036018C Method and system for handling exhaust gas in a boiler
06/25/1998WO1998027322A1 METHOD OF DE-SULPHURATING ENGINE EXHAUST NOx TRAPS
06/25/1998WO1998027015A1 Bioremediation of pollutants with butane-utilizing bacteria
06/25/1998WO1998027008A1 Process for recovering sulfur hexafluoride
06/25/1998WO1998026858A1 Method for the reduction of nitrogen oxides
06/25/1998WO1998026857A1 Method for the catalytic decomposition of nitrogen oxides
06/25/1998WO1998026856A1 Method of removing nitric oxides from the waste gases produced during cement production
06/25/1998WO1998026855A1 Method for preparing alkali metal fluoride pellets and gas scrubbing method using the same
06/25/1998WO1998026854A2 Method for the catalytic decomposition of nitrogen oxides
06/25/1998DE19800686A1 Biochemical filter material for large installations
06/25/1998DE19756517A1 Honig honeycomb structure used as carrier for vehicle exhaust gas catalysts
06/25/1998DE19654184A1 Absorbent=recovery regeneration method for effluent air=stream solvent
06/25/1998DE19653652A1 Gas sweetening plant for removing hydrogen sulphide and carbonyl sulphide by absorption and hydrolysis
06/25/1998DE19653200A1 Verfahren zur Reduktion von Stickoxiden A process for the reduction of nitrogen oxides
06/25/1998DE19652902A1 Removal of ammonia and amines from waste gas
06/25/1998DE19652740A1 Verfahren zur Entstickung der bei der Herstellung von Zement anfallenden Abgase Process for nitrogen removal costs incurred during the production of cement exhaust
06/25/1998DE19652739A1 Verfahren zur katalytischen Zersetzung von Stickoxiden Process for the catalytic decomposition of nitrogen oxides
06/25/1998DE19652738A1 Verfahren zur katalytischen Zersetzung von Stickoxiden Process for the catalytic decomposition of nitrogen oxides
06/25/1998CA2274570A1 Process for recovering sulfur hexafluoride
06/24/1998EP0849443A1 Mixture delivery device
06/24/1998EP0849441A1 Control strategy for NOx-accumulator
06/24/1998EP0849245A1 Process and plant for the production of methanol
06/24/1998EP0849218A1 Nitrogen PSA with intermediate pressure transfer
06/24/1998EP0849217A1 Process and apparatus for purifying a gas containing hydrogen sulfide and sulfur dioxide
06/24/1998EP0848993A2 Method for evaluating performance of chemical filter for cleaning gas
06/24/1998EP0848986A1 Method of reducing nitrogen oxides in exhaust gases of internal combustion engines
06/24/1998EP0848985A1 Process and apparatus for reduction of nitrogen oxydes in gaseous mixtures
06/24/1998EP0848984A1 Catalyst for exhaust gas purification and system for exhaust gas purification
06/24/1998EP0848983A1 Catalyst for exhaust gas purification and system for exhaust gas purification
06/24/1998EP0848982A1 Method and apparatus for treating a gas by refrigeration and contacting with a solvent
06/24/1998EP0848981A1 Pressure swing adsorption plant to separate oxygen from the air and process to operate the same
06/24/1998EP0848641A1 Direct oxidation method for converting sulphur compounds into sulphur with a copper catalyst
06/24/1998EP0848640A1 Process and device for scrubbing acidic gases
06/24/1998EP0848639A1 Oxygen enriched air generation system
06/24/1998EP0848638A1 Vapor recovery system with automatic valve control
06/24/1998EP0848637A1 Air filtration device
06/24/1998CN2284642Y Fume purifier for cremating machine
06/24/1998CN2284641Y Ceramic pipe desulfurizing water dust scrubber
06/24/1998CN1185778A Simplified efficient process for reducing NOx, SOx and particulates
06/24/1998CN1185756A Glass material for carrying a photocatalyst, filter device using the same and light irvadiating method
06/24/1998CN1185755A Bench top UV-activated odor filtration device
06/24/1998CN1185577A Pressure revolving adsorption using medidum pressure to transfer nigrogen
06/24/1998CN1185571A Absorption chamber
06/24/1998CN1185353A Catalyst for purifying nitrogen-contained gas to remove carbon monoxide and course thereof
06/24/1998CN1038815C Half-dry and dry desulphurizing apparatus
06/24/1998CN1038814C Device for purifying gas
06/23/1998US5771473 Method and plant for cleaning lightly radioactive waste incineration gases
06/23/1998US5770785 Apparatus and method for removing carbon dioxide contained in exhaust gas
06/23/1998US5770537 Soaking in basic reducing solution
06/23/1998US5770326 Monolithic mass and energy transfer cell
06/23/1998US5770275 Molecular sieving silica membrane fabrication process