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)
12/1980
12/16/1980US4239510 Natural gas purification
12/16/1980US4239509 Method of purifying crude argon
12/16/1980US4239508 Cumene recovery
12/16/1980US4239507 Condensation in capillaries of porous barrier
12/16/1980US4239506 Use of aqueous, non-sweep liquid during membrane separation
12/16/1980CA1091641A1 Enriched rhodium catalyst and method for making same
12/16/1980CA1091640A1 Process and composition for removing carbon dioxide containing acidic gases from gaseous mixtures
12/16/1980CA1091592A1 High surface area permeable membrane
12/16/1980CA1091429A1 Process for removing carbon dioxide containing acidic gases from gaseous mixtures
12/16/1980CA1091428A1 Method for substantially complete removal of hydrogen sulfide from sulfur bearing industrial gases
12/10/1980EP0020055A1 Process and apparatus for effecting mass transfer
12/10/1980EP0020051A1 Process for the purification of non-reacting gases
12/10/1980EP0019879A1 Heat-reactivatable adsorbent gas fractionator and process
12/10/1980EP0019635A1 Exhaust gas cleaning system for a diesel engine installed in a building
12/09/1980US4238466 Absorption of sulfur dioxide from gases by ferrous sulfate
12/09/1980US4238463 Method for desulfurizing gases with iron oxide
12/09/1980US4238462 Autocirculation process and apparatus
12/09/1980US4238461 Removal of odors from gas streams
12/09/1980US4238460 Waste gas purification systems and methods
12/09/1980US4238455 Denitrification reactor
12/09/1980US4238370 Washing a titanium oxide support free of vanadium pentoxide; total oxidation
12/09/1980US4238209 Gas drying apparatus
12/09/1980US4238206 Tertiary amine or carbonate solvent
12/09/1980US4238204 Selective adsorption process
12/09/1980US4237877 Protective environmental mask with thermoelectric air conditioning system
12/09/1980US4237696 Compressed air system
12/09/1980US4237620 Contactor
12/09/1980CA1091167A1 Dual filter assembly
12/09/1980CA1091166A1 Pneumatic compactor for particulate desiccant
12/02/1980US4237104 Flue gas treatment for sulfur dioxide removal
12/02/1980US4237032 Catalysts
12/02/1980US4237030 Catalyst for purifying exhaust gas from an internal combustion engine
12/02/1980US4237025 Product comprising lime or limestone and Graham's salt or Mx Pn O.sub.(3N+1)
12/02/1980US4236902 Modular air purifying device
12/02/1980US4236464 Halogen or acidic gas constituents
12/02/1980CA1090929A1 Apparatus working with pulse code modulation or similar digitizing techniques and according to time division multiplexing principles for processing information from a number of telephone channels
12/02/1980CA1090843A1 Water seal for regenerator
12/02/1980CA1090716A1 Device for separating the components of a gas mixture
12/02/1980CA1090561A1 Method and apparatus for producing dry compressed air for electrical gear
12/02/1980CA1090539A1 Gas-absorption process
12/02/1980CA1090534A1 Production of h.sub.2s from so.sub.2 obtained from flue gas
11/1980
11/26/1980EP0019160A1 Process for the destruction of phosgene
11/26/1980EP0019105A2 Pressure swing adsorption process and its use for the production of organic acids
11/25/1980US4235853 Method for sulfur dioxide control II
11/25/1980US4235852 Process for treating an exhaust gas containing nitrogen oxides and sulfur oxides
11/25/1980US4235851 Process for reducing the nitrogen oxide content of coke oven gases
11/25/1980US4235843 Automobiles
11/25/1980US4235704 Catalytic cracking, catalyst regeneration
11/25/1980US4235675 Process for purifying pyrolysis gases
11/25/1980US4235612 Device for separating gaseous mixtures
11/25/1980US4235607 Removing carbon dioxide from natural gas using salt water as absorbent
11/25/1980US4235081 Compressed air dryer
11/25/1980CA1090317A1 Mixed metal oxide catalysts for the purification of exhaust gases
11/25/1980CA1090281A1 Process for separating acid gases and ammonia from dilute aqueous solutions thereof
11/25/1980CA1090131A1 Air drying apparatus of the condensation type
11/25/1980CA1090098A1 Removal of co.sub.2 and/or h.sub.2s and/or cos from gases containing these constituents
11/25/1980CA1090097A1 Catalyst for converting nitrogen oxides and method for converting nitrogen oxides in exhaust gases by using said catalyst
11/25/1980CA1090096A1 Treatment of a hydrogen sulfide-containing gas
11/18/1980US4234549 Novel combustion process for an organic substrate
11/18/1980US4234548 Control of nitrogen oxides from stationary source effluents
11/18/1980US4234547 Flue gas treatment
11/18/1980US4234510 Direct cooling with a water stream followed by indirect cooling; gas flow
11/18/1980US4234460 Active carbon, copper
11/18/1980US4234456 Porous carrier and a metal and metal salt of silver, copper, or lead
11/18/1980US4234327 Compressed air system having an air dryer
11/18/1980US4234326 Filter assemblies with layers of activated carbon fibrous cloth
11/18/1980US4234322 Pressure swing adsorption process
11/18/1980CA1089842A1 Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures
11/18/1980CA1089776A1 Methods and apparatus for separating a gaseous mixture into the constituent gases
11/13/1980WO1980002387A1 Improved process for removal and recovery of vinyl chloride monomer from vent gas stream in polyvinyl chloride plant
11/12/1980EP0018713A1 Filter house and process for simultaneously removing NOx and particulate matter from a gas stream
11/12/1980EP0018635A2 Control of thiosulfate in wet desulfurization process solutions
11/12/1980EP0018478A1 Plant for the recovery of solvents and its operating process
11/11/1980US4233276 Process for the desulfurization of waste gases
11/11/1980US4233274 Reduction and/or oxidation and precipitating salts
11/11/1980US4233190 Process for the production of carbon dioxide absorption agent pellets for use in respiratory equipment
11/11/1980US4233189 Catalyst of rhodium on zirconia
11/11/1980US4233188 Oxidizing carbon monoxide and unburnt hydrocarbons using oxygen from the reduction of the nitrogen oxides
11/11/1980US4233185 Catalysts for oxidation and reduction
11/11/1980US4233183 Process for producing plate-shaped denitrating catalyst
11/11/1980US4233175 Reagent for treating flue gases and method of preparation
11/11/1980US4233141 Process for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gases
11/11/1980US4233117 From carbonaceous particles and binder by degassing in oxygen-free environment
11/11/1980US4233038 Multizonal molecular sieve regeneration, countercurrent, cocurrent
11/11/1980CA1089371A1 Device for the diffusion of substances between two fluids via semipermeable membranes
11/11/1980CA1089195A1 Process for removing nitrogen oxides from gas by ammonia
11/11/1980CA1089194A1 Process for simultaneous removal of hydrogen sulfide and water from a gas mixture without substantial removal of carbon dioxide or hydrocarbons
11/11/1980CA1089193A1 Power generation
11/11/1980CA1089189A1 Disposal of the residue of the exhaust gas washers of furnaces in particular bituminous coal power stations
11/04/1980US4231996 Method for producing ammonia and hydrogen sulfide
11/04/1980US4231995 Ammonia double-alkali process for removing sulfur oxides from stack gases
11/04/1980US4231900 Oxidation catalysts for automobile exhaust systems
11/04/1980US4231893 Process for preparing aqueous dispersion of ceria and resulting product
11/04/1980US4231768 Air purification system and process
11/04/1980US4231765 Air cleaning apparatus and method
11/04/1980US4231764 Adsorption, regeneration, condensation
11/04/1980US4231763 Exhaust gas pollution control system
11/04/1980CA1088878A1 Liquid-vapor separator
11/04/1980CA1088728A1 Method and apparatus for removing nitrogen oxides from a gas stream
10/1980
10/29/1980EP0018307A1 Method for the preparation of molybdenum-surface-compounds and their uses