| 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) |
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| 12/01/1998 | US5843394 Catalyst for the oxidation of gaseous sulphur compounds |
| 12/01/1998 | US5843392 Catalyst system of the structured type |
| 12/01/1998 | US5843390 Method of using a catalytic filter |
| 12/01/1998 | US5843383 Pollutant remediating corona discharge chamber |
| 12/01/1998 | US5843382 Method and apparatus for removing sulfur from solution in liquid redox sulfur removal processes |
| 12/01/1998 | US5843381 Apparatus for removal of hydrogen sulfide |
| 12/01/1998 | US5843299 Corrosion inhibitor for alkanolamine units |
| 12/01/1998 | US5843288 Methods and apparatus for controlling toxic compounds using catalysis-assisted non-thermal plasma |
| 12/01/1998 | US5843213 Moisture control unit |
| 12/01/1998 | US5843212 Fuel tank ullage pressure reduction |
| 12/01/1998 | US5843209 Vapor permeation system |
| 12/01/1998 | US5843208 Process for recovering sulfur hexafluoride |
| 12/01/1998 | US5843205 Method of removing dioxins in a waste incineration plant |
| 12/01/1998 | US5842357 Landfill gas recovery |
| 12/01/1998 | US5842341 Exhaust emission purification apparatus for an internal combustion engine |
| 12/01/1998 | CA2150379C Exhaust emission control catalyst and process for producing the same |
| 12/01/1998 | CA2057702C Catalyst for purifying exhaust gas |
| 12/01/1998 | CA2057510C Catalyst for purifying exhaust gas |
| 11/26/1998 | WO1998053246A1 High capacity gas storage and dispensing system |
| 11/26/1998 | WO1998053187A1 Honeycomb body with a system for avoiding mechanical vibrations |
| 11/26/1998 | WO1998053044A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 11/26/1998 | WO1998052681A1 Method for removing nitrogen oxides using natural manganese ores |
| 11/26/1998 | WO1998052680A1 Removal of contaminants from gas streams in rayon production |
| 11/26/1998 | WO1998052679A1 Method and device for eliminating oxide pollutants in an exhaust gas containing oxygen and engine operating thereby |
| 11/26/1998 | WO1998052678A1 Manufacturing process for gas source and dispensing systems |
| 11/26/1998 | WO1998052677A1 Bulk storage and dispensing system for fluids |
| 11/26/1998 | DE19822798A1 Exhaust control for internal combustion engine |
| 11/26/1998 | DE19821249A1 Honeycomb body of twisted sheet layers production process |
| 11/26/1998 | DE19721230A1 Air drying cartridge |
| 11/26/1998 | DE19720981A1 Gas filter |
| 11/26/1998 | CA2289845A1 Removal of contaminants from gas streams in rayon production |
| 11/25/1998 | EP0879772A2 Container for moisture-sensitive material |
| 11/25/1998 | EP0879633A2 Process for cleaning a lean exhaust gas and catalyst system therefor |
| 11/25/1998 | EP0879632A2 Gas-liquid contact apparatus |
| 11/25/1998 | EP0879631A1 Process for removing carbon dioxide from gases |
| 11/25/1998 | EP0879630A2 Method and apparatus for separation of a gas |
| 11/25/1998 | EP0879389A1 Helium recycling for optical fiber manufacturing |
| 11/25/1998 | EP0879344A1 System for reducing emissions in catalytic converter exhaust systems |
| 11/25/1998 | EP0879343A1 Method and device for purifying exhaust gas of engine |
| 11/25/1998 | EP0879313A1 Filter regeneration and dry cleaning system |
| 11/25/1998 | EP0879221A1 Production of aromatic carboxylic acids |
| 11/25/1998 | CN2298057Y Wind tunnel dust removing desulfurization device |
| 11/25/1998 | CN1200053A Method for catalytically processing gases with a high oxygen content to reduce nitrogen oxide emissions |
| 11/25/1998 | CN1199851A Cryogenic hybrid system for producing high purity argon |
| 11/25/1998 | CN1199836A Low pressure gas source and dispensing apparatus with enhanced diffusive/extractive means |
| 11/25/1998 | CN1199813A Method for producing oxidized product and generating power using solid electrolyte membrane integrated with gas turbine |
| 11/25/1998 | CN1040844C Pressure varying adsorption/desorption process with multiple countercurrent depressurization steps |
| 11/25/1998 | CN1040843C A method and an installation for purifying the exhaust gas from a large diesel engine |
| 11/24/1998 | US5842110 Apparatus and method for photocatalytic conditioning of fuel gas fly-ash particles |
| 11/24/1998 | US5841804 Method and apparatus for regenerating gas used in carbon dioxide laser generator |
| 11/24/1998 | US5841012 Hydrogenation catalysts for low concentration of chloroprene and trichloroethylene in ethane dichloride stream |
| 11/24/1998 | US5840953 Purifying tetraethoxysilane by passing impure material through gas chromatograph separating column at temperature below boiling point of pure material |
| 11/24/1998 | US5840651 Blending caking coal and noncaking coal or two caking coals of different properties, adding binder, kneading, forming mixture, oxidizing, carbonizing, oxidizing again |
| 11/24/1998 | US5840649 NOx adsorbents |
| 11/24/1998 | US5840632 Foamed materials containing blends of polystyrene, elastomers and blowing agent for very efficient absorption of impurities and spills |
| 11/24/1998 | US5840263 Flue gas treating process and system |
| 11/24/1998 | US5840174 Process for the purification of gases |
| 11/24/1998 | US5840104 Canister structure for automobile |
| 11/24/1998 | US5840099 Process for the removal of water, CO2, ethane and C3 + hydrocarbons from a gas stream |
| 11/24/1998 | US5840098 Membrane generators having high flexibility |
| 11/21/1998 | CA2238292A1 Method of obtaining and using particulate calcium carbonate |
| 11/19/1998 | WO1998051777A1 Improved filtering system and method for incubators |
| 11/19/1998 | WO1998051402A1 Method and device for reducing nitrogen oxides in an scr catalyst |
| 11/19/1998 | WO1998051401A1 Gold based catalyst for exhaust gas purification |
| 11/19/1998 | WO1998051400A1 Reactive powder composition and method for purifying gas |
| 11/19/1998 | WO1998051399A1 Apparatus and method for performing membrane gas/liquid absorption at elevated pressure |
| 11/19/1998 | WO1998051398A1 Pressure swing system with auxiliary adsorbent bed |
| 11/19/1998 | WO1998051397A1 Fuel vapor recovery canister utilizing activated carbon textile |
| 11/19/1998 | DE19820682A1 Eliminating oxidic pollutants in diesel engine exhaust gas |
| 11/19/1998 | DE19740702C1 Exhaust purification system management for e.g. lean-running diesel engine |
| 11/19/1998 | DE19720580A1 Apparatus for treating air flow delivered into vehicle interior |
| 11/19/1998 | DE19720205A1 Purification of exhaust gases charged with nitrogen oxide(s) |
| 11/19/1998 | DE19719834A1 Quantitative removal of fluorinated compound from gas by sorption at moderate temperature |
| 11/19/1998 | DE19718239A1 Elektrisch beheizter Katalysator An electrically heated catalyst |
| 11/19/1998 | DE19623078A1 Table-top bio-active air filter for e.g. offices |
| 11/18/1998 | EP0878859A1 Fuel-cells system having means for oxagen enrichment of the oxidant gas |
| 11/18/1998 | EP0878610A1 Exhaust gas purifying apparatus |
| 11/18/1998 | EP0878609A2 An exhaust gas purification device for an internal combustion engine |
| 11/18/1998 | EP0878608A2 Process and device for reducing nitrogen oxides in the exhaust of a combustion plant |
| 11/18/1998 | EP0878233A2 Method of coating materials with a zeolite-type substance |
| 11/18/1998 | EP0878228A1 Method and apparatus for recovering, concentrating or reducing of vapors and/or gaseous materials out of a vaporous and/or gaseous mixture of substances |
| 11/18/1998 | EP0878221A1 Distribution device for columns |
| 11/18/1998 | EP0878214A2 Process and apparatus for remedying polluted media |
| 11/18/1998 | EP0877649A1 IMPROVED ADVANCED REBURNING METHODS FOR HIGH EFFICIENCY NO x? CONTROL |
| 11/18/1998 | EP0877647A2 Regenerative method and composition for removing sulfides from gas streams |
| 11/18/1998 | EP0765188B1 Oxidation catalyst |
| 11/18/1998 | CN1199443A Device for purifying exhaust gas of internal combustion engine |
| 11/18/1998 | CN1199381A Process for abatement of nitrogen oxides in exhaust from gas turbine power generation |
| 11/18/1998 | CN1199353A Method for reactivating sorbent to enable reuse thereof |
| 11/18/1998 | CN1198960A Process for selective reduction of NOx in exhaust gases |
| 11/18/1998 | CN1040766C Removing contaminants from synthesis gas |
| 11/18/1998 | CN1040728C Process for removal of tin compound from exhaust vapors |
| 11/17/1998 | US5837642 Heat-resistant oxide |
| 11/17/1998 | US5837639 Metal hydrogenation-dehydrogenation component supported on ultra-large pore crystalline material |
| 11/17/1998 | US5837636 Method for reducing chloride emissions from a catalyst regeneration process |
| 11/17/1998 | US5837635 Process for producing mixed oxide powders from deactivated denox catalysts |
| 11/17/1998 | US5837213 Blowing into absorbing liquid through sparger pipes |
| 11/17/1998 | US5837212 Potassium/manganese nitrogen oxide traps for lean-burn engine operation |
| 11/17/1998 | US5837205 Heat exchanging, oxidation, and combustion; insulated, ceramic filled heat recovery columns; air pollution control;efficiency |
| 11/17/1998 | US5837158 Blend of addition polymer, catalyst and diluent |