Patents
Patents for B01D 51 - Auxiliary pretreatment of gases or vapours to be cleaned from dispersed particles (1,271)
07/1991
07/11/1991WO1991009663A1 A system and a process for the purification treatment of smokes, dusts and exhaust gases after combustion
06/1991
06/18/1991US5024681 Flowing flue gases through electrostatic precipitator, retaining charges, then high speed filtration
06/16/1991WO1991008838A1 Compact hybrid particulate collector (cohpac)
04/1991
04/16/1991US5007180 Method of and an apparatus for the separation of condensable harmful substances
04/03/1991EP0420373A2 Ventless hood for a deep fat fryer
03/1991
03/28/1991CA2011187A1 Ventless hood for a deep fat fryer
02/1991
02/07/1991DE3925818A1 Dust removal from zinc baths in hot galvanising unit - uses auxiliary zinc ash dust flow which facilitates dust extn. and when satd. is processed for reuse
01/1991
01/29/1991US4988372 Purification by filtration gases through hollow filters, aerosols
01/09/1991EP0407287A1 A process of flue gas conditioning applied to fabric filtration
01/02/1991EP0405375A1 Method for reducing the de novo synthesis of dioxins and furans
12/1990
12/12/1990EP0402032A1 Vertically tiered particle filtering apparatus
12/12/1990CN1047666A Insulating wool production plant of reduced environmental impact
11/1990
11/30/1990CA2017706A1 Vertically tiered particle filtering apparatus
11/14/1990EP0397224A1 Insulating wool production plant of reduced environmental impact
11/13/1990US4969937 Vertically tiered particle filtering apparatus
11/09/1990CA2012975A1 Insulating wool production plant of reduced environmental impact
10/1990
10/10/1990CN1045928A Process for purification of waste gases emitted from melting furnace
10/02/1990CA1274788A1 Process for removing solids from a gas containing the same
09/1990
09/28/1990CA2013264A1 Process for the purification of waste gases emitted from a melting furnace
09/25/1990US4959085 Process and installation for the treatment of a stream of gas containing pyrophoric dust
09/12/1990CN1045231A Method and apparatus for wetting particles contained in gas flow
08/1990
08/22/1990CN1044769A Supercooling type purifying apparatus of smoke and fume
07/1990
07/26/1990WO1990007969A1 Filtration apparatus
07/17/1990US4941900 Apparatus and method for gas-liquid separation and filtration
07/17/1990US4941400 Ventless hood for a deep fat fryer
06/1990
06/26/1990US4936879 Filtration system with apparatus for altering the shape and dimension of particles
06/05/1990US4931073 Process of flue gas conditioning applied to fabric filtration
05/1990
05/22/1990US4926620 By passing air through opposing water jet streams
05/08/1990US4923488 Apparatus for altering the density of particles
05/01/1990US4921509 Air filtration system for ducted range hoods
04/1990
04/24/1990US4919696 Supercooling type mist eliminator apparatus
03/1990
03/21/1990EP0358923A1 Process and apparatus for purifying a raw gas originating from the gasification of solids
03/13/1990US4908058 Method and apparatus for reducing dust accretions while treating gases in a smelting furnace
02/1990
02/22/1990WO1990001362A1 Filter device
02/21/1990CN1006898B Method for cleaning gas produced from solid carbonaceous material in a twostage gas producer
02/21/1990CN1006850B Sulfur oxide scrubbing process
02/14/1990CN1039641A Process for cleaning gas turbine inlet air
02/13/1990US4900341 Purification system
02/07/1990EP0353903A1 Method for gas-liquid separation and filtration
02/07/1990EP0353679A1 Filtering device
02/06/1990CA1265345A1 Process and device for chilling stream of gas- suspended particles
01/1990
01/25/1990WO1990000436A1 Process for cleaning gas turbine inlet air
01/25/1990DE3824498A1 Method for removing by suction and separating out dusty and vaporous products
01/24/1990EP0352126A2 An inlet for a high volume particle sampler
01/16/1990CA1264454A1 Method and apparatus for biological treatment of waste gases
01/10/1990EP0350272A1 Process for cleaning gas turbine inlet air and apparatus therefor
12/1989
12/26/1989US4889544 Cooler-dehumidifier-filter 3-in-one apparatus for treating compressed air
12/26/1989US4888884 Method and plant for cleaning dryer exhaust gases during the drying of wood chips, wood fiber of the like
12/19/1989US4888158 Separating unevaporated drops from hot flue gas stream using modified electrostatic precipitator; removal of sulfur oxides and particles; pollution control
12/12/1989US4886524 Spraying liquid into exhaust gas, passing into dust collector with vacant first chamber; reduced flue length
12/12/1989US4886523 Expansion to high subsonic velocity, recompression by deceleration, inertial separation of particles
11/1989
11/07/1989US4878925 Apparatus for removing foreign substances in gas
10/1989
10/19/1989DE3811758A1 Device for separating off pollutants from the exhaust air of carpet production plants
10/11/1989EP0336087A1 Process and installation for the treatment of a flow of gas containing pyrophoric dust
10/04/1989EP0334922A1 Installation for eliminating condensable noxious matter
09/1989
09/12/1989US4865749 Indoor swimming pool maintenance, cyclone separator, ozone treatment
09/12/1989US4865629 Control of particle size distribution in gas filtration
09/12/1989US4865627 To produce a gas stream that is sufficiently clean to be recycled to compressors or power recovery turbines; fly ash removal from syngas
09/05/1989US4863703 Filtration system with apparatus for altering the temperature of particles
08/1989
08/10/1989DE3803613A1 Process and apparatus for purifying dusty, organically contaminated exhaust gases of an exhaust gas stream
07/1989
07/18/1989US4848988 Compressed air dehumidifier
07/18/1989US4848656 Process for the controlled disposal of an aerosol cloud and a device for the implementation of the process.
07/11/1989US4846856 Circulating air scrubber
06/1989
06/21/1989EP0320625A2 Use of odorous products, especially in vacuum cleaners
05/1989
05/31/1989EP0318308A2 Vacuum loader and process for removing asbestos and other particulate material
05/24/1989CN1033012A Method and apparatus for separating fine particulates from mixture of fine particulates and gas
05/16/1989US4830638 Filtration system with apparatus for altering the arrangement of electrons in particles
05/03/1989EP0314253A1 Method and apparatus for separating fine particulates from a mixture of fine particulates and gas
05/03/1989EP0314085A1 Air filtration system for ducted range hoods
05/03/1989EP0314072A1 Supercooling type mist eliminator apparatus
05/03/1989DE3800161C1 Combination method for removing dust and acidic gases from flue gases
04/1989
04/26/1989EP0313060A2 Inverse flow depth filter assembly
04/25/1989CA1253110A1 Fcc closed cyclone process and apparatus
04/20/1989WO1989003499A1 Process and installation for eliminating condensable noxious matter
04/18/1989US4822387 Inverse flow depth filter assembly
03/1989
03/21/1989US4813978 Process for separating particles and apparatus for carrying out the process
03/07/1989CA1250803A1 Method and plant for cooling gases and removing dust from them
02/1989
02/09/1989DE3724806A1 Process and apparatus for separating off aerosols
01/1989
01/31/1989CA1249441A1 Method for cleaning gas produced from solid carbonaceous material in a two-stage gas producer
01/11/1989CN1030177A 净化系统 Purification System
01/05/1989DE3721039A1 Process for purifying exhaust gases
01/04/1989EP0298000A2 Purification system
01/03/1989US4796185 Typewriter having electronic dictionary with efficient storage, for printing any stored information associated with a entered word or entered word
01/03/1989US4795854 Separating effluent from a polymerization reactor, i.e. gaseous ethylene and liquid polyethylene
12/1988
12/29/1988DE3720527A1 Heat exchanger
12/14/1988EP0295181A1 Method for the desaturation of extracted gas and its application to transport systems under vacuum
11/1988
11/30/1988EP0292932A1 Process and apparatus for the controlled degradation of an aerosol cloud
11/17/1988EP0291489A1 Process and apparatus for aerodynamic separation of components of a gaseous stream
11/17/1988EP0290931A2 Method and device for the purification of desiccation exhaust gas from drying of wood chips, wood fibers, etc.
11/09/1988EP0289741A2 Method and device of the discharge of fine grained and hot solids
10/1988
10/26/1988EP0288064A1 Circulating air washer
10/12/1988EP0285612A1 Moisture remover in compressed air system.
10/12/1988EP0221061B1 Method for the separation of water obtained form a coking process into a small high salt content fraction and a large low salt content fraction
09/1988
09/15/1988DE3706864A1 Device, plant and method for removing pollutants from flue gases
08/1988
08/31/1988EP0280160A1 Separating device for gaseous fluids
08/30/1988US4767424 Liquid coalescer under centrifugal separator; efficient
08/23/1988US4765803 Oppositely charged clouds converge and are depolarized; conglomeration; dedusting
07/1988
07/26/1988US4759500 Process for chilling stream of gas-suspended particles
07/13/1988EP0274037A1 Process and device for the separation of particles
07/06/1988EP0273084A1 Method for treating waste liquid in wet exhaust gas treating apparatus
1 2 3 4 5 6 7 8 9 10 11 12 13