| 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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| 01/02/1992 | DE4020914A1 Gas purificn. by converting ammonia to nitrogen using catalyst - contg. noble metal and transition metal oxide e.g. for purifying waste gas from soda mfr. |
| 01/02/1992 | DE4020246A1 Regeneratable, low flow resistance, adsorber for vent gases - comprises fluidised bed and fixed bed sections |
| 01/02/1992 | DE4012458A1 Exhaust scrubber for IC engine of motor vehicle - has electrodes spaced by ceramics to form spark gaps |
| 01/01/1992 | CN2091861U Membrane carrier of oxygen for glass-melting furnace |
| 01/01/1992 | CN2091709U Oxygen drier with inner drying |
| 01/01/1992 | CN1057404A Improved control of pressure swing adsorption operations |
| 01/01/1992 | CN1015233B Device for evenly distributing liquid in exchange section of substance-and heat-exchange column |
| 01/01/1992 | CN1015231B Bag for removal of solid material from gases and for treatment of said gases |
| 12/31/1991 | US5077261 Zince oxide, silica and fluorine-containing acid |
| 12/31/1991 | US5077208 Microbial removal of nox from gases |
| 12/31/1991 | US5077029 Air separation into high purity nitrogen with low residual oxy gen; catalytic hydrogenation of oxygen to water; computerized analysis and control |
| 12/31/1991 | US5077025 Process or purifying waste gases by scrubbing with an adsorbent suspension |
| 12/31/1991 | US5077024 Method and apparatus for wetting the particles contained in a gas flow |
| 12/31/1991 | US5077023 Reduction in the rate of oxidation of sulfite solutions |
| 12/31/1991 | US5076960 Alkali metal halogenite and transition and post transition metal salts |
| 12/31/1991 | US5076822 Vapor recovery system |
| 12/31/1991 | US5076818 Gas cleaning methods and apparatus |
| 12/31/1991 | US5076817 Aromatic polyamides; selective |
| 12/30/1991 | CA2045936A1 Process for recovering sulfur |
| 12/29/1991 | WO1992000135A1 Gas cleaning methods and apparatus |
| 12/29/1991 | CA2086339A1 Gas cleaning methods and apparatus |
| 12/27/1991 | EP0462781A2 Method for desulphurizing exhaust smoke |
| 12/27/1991 | EP0462778A1 Pressure swing adsorption method for separating gaseous mixtures |
| 12/27/1991 | EP0462687A1 High capacity vane |
| 12/27/1991 | EP0462598A2 Transition metal-containing zeolite having high hydrothermal stability, production method thereof and method of using same |
| 12/27/1991 | EP0462593A1 Use of a specific catalyst for purifying exhaust gases from Diesel engines |
| 12/27/1991 | EP0382742B1 Process of guiding a stream of bulk solids in at least one circulating bed reactor and reactor installation for realising the process |
| 12/27/1991 | EP0237581B1 Poly(di-substituted acetylene)/polyorganosiloxane graft copolymer and gas separation membrane |
| 12/26/1991 | WO1991019894A1 A method of removing hydrocarbons from the air |
| 12/26/1991 | WO1991019559A1 Process for carrying out an equilibrium reaction using vapour permeates |
| 12/26/1991 | CA2045300A1 Apparatus for treating exhaust gas |
| 12/25/1991 | CN1057306A Purification of process gas from partial combustion of black liquor |
| 12/25/1991 | CN1057212A Catalyst for oxidation of sulfur dioxide |
| 12/25/1991 | CN1057211A Process using sorbents for removal of sox from flue gas and other gas streams |
| 12/25/1991 | CN1057210A Gas/liquid distributor between two exchange portions of counter-current column |
| 12/25/1991 | CN1057209A High efficiency distributor for gas-liquid contact column and method of prepn. and use |
| 12/25/1991 | CN1057208A Desulfurizing method of exhaust gas |
| 12/24/1991 | US5075276 Catalyst for purification of exhaust gases |
| 12/24/1991 | US5075275 Catalyst for purification of exhaust gases |
| 12/24/1991 | US5075274 Exhaust gas cleaner |
| 12/24/1991 | US5075085 Desulfurizing method for exhaust gas from combustor |
| 12/24/1991 | US5075084 Passing through adsorbent bed of granular silver-lead exchange d faujasite molecular sieve |
| 12/24/1991 | US5074893 Intermittent interruption of gas flow through absorber beds for regeneration |
| 12/24/1991 | US5074892 Using lithium exchanged type x zeolite |
| 12/24/1991 | US5074891 Using aromatic fluorine-containing polyimide |
| 12/24/1991 | CA1293363C Process and apparatus for making catalyst case |
| 12/24/1991 | CA1293359C Process for removing oxides of nitrogen and sulfur from waste gases |
| 12/24/1991 | CA1293358C Removing h s from a sour gaseous stream |
| 12/24/1991 | CA1293357C Removing h s from a sour gaseous stream |
| 12/23/1991 | CA2040033A1 Storage tank dehydration system |
| 12/20/1991 | CA2044909A1 Pressure swing adsorption method for separating gaseous mixtures |
| 12/20/1991 | CA2044757A1 Process and apparatus for dehumidifying wet air |
| 12/19/1991 | WO1991019518A1 Device for making aggregate for construction material from infectious medical wastes |
| 12/19/1991 | DE4019170A1 Verfahren zum durchfuehren einer gleichgewichtsreaktion unter anwendung von daempfepermeation A method of conducting an equilibrium reaction using vapor permeation |
| 12/19/1991 | DE4019037A1 Controlling nitrogen-oxide(s) reducing chemical feed - in treatment of combustion flue gases |
| 12/19/1991 | DE4016261A1 Exhaust gas scrubber for motor vehicle IC engine - has afterburner with discharge electrodes triggered in sequence |
| 12/19/1991 | CA2060202A1 Apparatus for producing aggregate for construction works from infectious medical waste articles |
| 12/19/1991 | CA2044314A1 Hybrid membrane - cryogenic generation of argon concurrently with nitrogen |
| 12/18/1991 | EP0462048A1 Gas/liquid distribution between two sections in a counter-current column |
| 12/18/1991 | EP0461950A1 Porous matrix material containing a second element in dispersed form and process for its manufacture |
| 12/18/1991 | EP0461949A1 Composition containing alumina doped with rare earths and/or alkaline earths and process for its preparation |
| 12/18/1991 | EP0461853A2 Residential furnaces, air-intake system therefor, and method of operating them |
| 12/18/1991 | EP0461852A2 Mobile engines, air-intake system therefor, and method of operating them |
| 12/18/1991 | EP0461695A1 Process and apparatus for cleaning dust-laden and noxious exhaust gases |
| 12/18/1991 | EP0461678A1 Method and apparatus for reducing sulphur dioxide content in flue gases |
| 12/18/1991 | EP0461478A1 Improved air separation pressure swing adsorption process |
| 12/18/1991 | EP0461452A1 Metal foil catalyst support |
| 12/18/1991 | EP0461385A1 Process for the treatment of wastewaters from gasification plants operating under high pressures |
| 12/18/1991 | EP0461305A1 Process for the purification of exhaust gases of plants for the production of cement clinker |
| 12/17/1991 | US5073532 Impregnating alumina support with transition metal oxide, followed by noble metals, hydrogenating |
| 12/17/1991 | US5073432 Honeycomb structure and method of producing the same |
| 12/17/1991 | US5073356 Integrated processes for the production of carbon monoxide |
| 12/17/1991 | US5073355 Scrubbing with ferrous chloride |
| 12/16/1991 | WO1991019558A1 Process for the removal of hydrogensulphide (h2s) from biogas |
| 12/16/1991 | CA2064724A1 Process for the removal of hydrogensulphide (h2s) from biogas |
| 12/14/1991 | CA2044445A1 Porous matrix material comprising a second element in a dispersed form, and fabrication process of said material |
| 12/14/1991 | CA2044396A1 Air-intake system for residential furnaces |
| 12/14/1991 | CA2044395A1 Air-intake system for mobile engines |
| 12/14/1991 | CA2043834A1 Gas/liquid distributor for a counter-current column |
| 12/13/1991 | CA2036928A1 Sorption of trialkyl arsines |
| 12/12/1991 | WO1991019143A1 Method of minimizing discharge of and exposure for solvents and other volatile substances |
| 12/12/1991 | WO1991019042A1 Process for the preparation of an aqueous solution of sodium compounds |
| 12/12/1991 | WO1991018663A1 Method of removing nitrogen oxides from combustion exhaust gas |
| 12/12/1991 | WO1991018661A1 Microbial removal of nitrogen oxides from gases |
| 12/12/1991 | DE4034301C1 Appts. for deflecting gas-stream - comprises U=sections placed in entrance of second channel in plane transverse to first channel |
| 12/12/1991 | DE4027040C1 Non-catalytic removal of nitric oxide from waste gases - by injecting reducing agent into gases via nozzles |
| 12/12/1991 | DE4018137A1 Compact tray assembly for distn. column - incorporating gas distributor, droplet coalescer, and drain channel |
| 12/11/1991 | EP0460730A1 Base metal automotive exhaust catalysts with improved activity and stability |
| 12/11/1991 | EP0460697A1 Process for purification of offgases |
| 12/11/1991 | EP0460636A2 Improved membrane nitrogen process and system |
| 12/11/1991 | EP0460542A2 Dual converter engine exhaust system for reducing hydrocarbon emissions |
| 12/11/1991 | EP0460388A1 Catalyst for the oxidation of sulphur dioxide |
| 12/11/1991 | EP0460230A1 Method and apparatus for treating exhaust gas by multi-stage irradiation with electron beam |
| 12/11/1991 | EP0460115A1 A system and a process for the purification treatment of smokes, dusts and exhaust gases after combustion |
| 12/11/1991 | EP0444193A4 Membrane element and membrane apparatus for extracting super-pure hydrogen from gaseous hydrogen-containing mixtures |
| 12/11/1991 | CN1056827A Polyoxometatate intercalated layered double hydroxides |
| 12/11/1991 | CN1056826A Facilitated liquid membranes for olefin/paraffin gas separations and related process |
| 12/11/1991 | CN1056825A Catalyst for eliminating nitrogen oxide from waste gas and preparation method thereof |
| 12/11/1991 | CN1056824A Purification process for waste mixture of dust, acid vapour and acid gas |
| 12/10/1991 | US5071818 Impregnationof porous ceramic with a tin carboxylate solution; drying; calcining, with platinum or palladium; carbon monoxid e oxidation catalyst |