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7604685 |
Method for the selective extraction of acids
A process for the extraction of an unwanted material from a gas comprising the steps of introducing an extraction liquid into a fluid having an unwanted liquid therein to form a physical aerosol...
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7520917 |
Devices with extended area structures for mass transfer processing of fluids
A microchannel device includes several mass transfer microchannels to receive a fluid media for processing at least one heat transfer microchannel in fluid communication with a heat transfer fluid...
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7329308 |
Air handling and chemical filtration system and method
The present invention relates to systems and methods for controlling humidity and temperature in gases or air streams used in semiconductor processing systems. These systems and methods can be used...
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7306653 |
Condensing deaerating vent line for steam generating systems
The present invention comprises an apparatus and method for efficiently venting impurities from a heat recovery steam generator system by concentrating the impurities in a condensing deaerating...
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7179875 |
Method for producing water-absorbent resins
In a process for preparing water-absorbent resins based on acrylic acid, crude acrylic acid is firstly isolated from the reaction gases from the catalytic gas-phase oxidation of propane, propylene...
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7160362 |
Method and device for cleaning air
A method of cleaning air, including a humidifying operation for humidifying the air containing chemical contaminants by a humidifier and taking a part of the gaseous contaminants in the air into...
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7147692 |
Air cleaning apparatus and method for cleaning air
The method involves contacting the air with an aqueous or non-aqueous liquid in a stand-alone system. The air may be brought into contact with the liquid using a number of different types of...
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6679939 |
Fractional condensation of a product gas mixture containing acrylic acid
In a process for the fractional condensation of an acrylic acid-containing product gas mixture of a gas-phase partial oxidation of C 3 precursors of acrylic acid with molecular oxygen under...
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6238462 |
Methods for the separation of compounds from acidic aqueous solutions
A method is disclosed for recovering germanium from a gaseous mixture which includes a germanium-containing compound in vapor or particulate form, acid in vapor form, and water vapor. The gaseous...
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5928412 |
Method and apparatus for cleaning a vapour
A method is disclosed by which vapour is cleaned of gaseous impurities during evaporation of polluted liquids. Vapour is conducted via a boiler, a compressor to a heat exchanger (12) in which...
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5629258 |
Flat structural elements and a packing composed of such structural elements
A flat structural element has a plurality of openings which are distributed according to a predetermined pattern for use in packings. Every opening is delimited by the edges, which extend at an...
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5470557 |
Zeolites
Crystals of the Zeolite Analcime (Analcite) Na 2 O.Al 2 O 3 .4SiO 2 .2H 2 O are provided having a largest dimension greater than 50 micron. A method for preparing such crystals by mixing aqueous...
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5332496 |
System for performing catalytic dehalogenation of aqueous and/or non-aqueous streams
A system for removing contaminants from a solution is provided. A supply tank holds the contaminated solution and a reactor containing a catalyst receives the contaminated solution from the supply...
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5232676 |
Process for the biological purification of waste air streams
In a process for the biological elimination of halogen- and sulfur-containing gaseous pollutants from a waste air stream, the waste air stream is passed through an intermittently moistened...
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5231836 |
Two-stage condenser
First and second indirect contact condensing heat exchangers are used to separate gases from a mixture of condensible and non-condensible gases, such as the vapor from the last stage of a black...
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5171557 |
Method for silicon nitride precursor solids recovery
Method and apparatus are provided for collecting reaction product solids entrained in a gaseous outflow from a reaction situs, wherein the gaseous outflow includes a condensable vapor. A condensate...
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5147422 |
Paint spray booth
A paint spray booth is provided which comprises a floor covered with flowing liquid, the floor including an elongated passageway formed therein defined by a pair of passageway walls and having an...
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4942135 |
Method for preconcentrating a sample for subsequent analysis
A system for analysis of trace concentration of contaminants in air includes a portable liquid chromatograph and a preconcentrator for the contaminants to be analyzed. The preconcentrator includes...
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4902318 |
Inlet apparatus for gas-aerosol sampling
An inlet apparatus for gas-aerosol sampling comprises an elutriator column and an impactor member. The elutriator column comprises an inlet and an impact accelerator jet outlet, and the inner...
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4883505 |
Methods and apparatus for atmospheric sampling and analysis of trace contaminants
This invention relates to a method and device for continuously removing and concentrating specific molecules or substances from a gas stream and depositing such molecules or substances in a liquid...
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4844722 |
Air pollution prevention device
An air pollution prevention device that is designed in the preferred embodiment to operate downstream from an existing muffler. The device comprises an oil filled lower chamber with turbulence...
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4705542 |
Production of synthesis gas
Deposition of ash in the outlet conduit of a synthesis gas quench chamber is reduced or eliminated by providing a streamlined configuration at the mouth and throat of the outlet conduit.
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4675031 |
Phoretic enhanced-gravity particulate removal system
A phoretic enhanced-gravity particulate removal system (10) is provided for removing particulates and gaseous pollutants from a particulate laden gas. The particulate laden gas is initially brought...
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4544380 |
Air conditioner for a coating booth
An air conditioner for a coating booth is constructed so as to intake the air through a filter for eliminating dust, to heat the air by a plate fin coil heater to the extent that it is not...
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4529417 |
Process for the isothermal absorption of ethylene oxide using film absorbers
This invention relates to a process for the isothermal absorption of the ethylene oxide contained in the gas from an ethylene oxide production plant. This process is characterized in that the gas...
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4487616 |
Method for removing solvent from solvent vapor-laden air exiting a dry-cleaning machine
A method for recovering hydrocarbon and hydrocarbon derived solvents from solvent laden air. This method includes the steps of moving the solvent laden air through a first chamber; moving a film of...
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4466808 |
Method of cooling product gases of incomplete combustion containing ash and char which pass through a viscous, sticky phase
Hot gases containing ash and char which pass through an undesirable viscous, sticky phase on cooling through an intermediate temperature range, are cooled in a first cooling zone including a...
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4427416 |
Processes for extracting oxygen from fluids using immobilized hemoglobin
An oxygen carrier, capable of reversibly binding and releasing oxygen, immobilized in a polymer matrix and a method of recovering dissolved oxygen from fluids utilizing the same.
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4376109 |
Process and apparatus for disposal of noxious vapors emanating from wort and mash during production of beer in brewery installations
Process and apparatus for disposal of noxious vapors emanating in brewery installations from treatment of wort and mash during the production of beer and for recovery of excess energy therefrom...
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4371563 |
Fine particle filter system having low pressure drop for gaseous flow systems
An overspray filter collector unit for a plasma spray system filters fine, relatively small particulate from the overspray upstream of the vacuum pumps. The filter collector unit includes a hollow...
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4348373 |
Process for the preparation of sulfuric acid
The invention relates to a process for preparing concentrated sulfuric acid by conducting a gas stream containing SO 3 and H 2 SO 4 -vapor in a sulfuric acid tower in countercurrent to liquid...
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4343715 |
Immobilized hemoglobin, and processes for extracting oxygen from fluids using the same
An oxygen carrier, capable of reversibly binding and releasing oxygen, immobilized in a polymer matrix and a method of recovering dissolved oxygen from fluids utilizing the same.
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4257785 |
Method and apparatus for scrubbing a gas containing powdered particles
A scrubber for separating powder particles from a gas stream comprising a closed vertical cylindrical housing having a tangential inlet for the gas stream and a concentric discharge pipe passing...
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4257784 |
Method and apparatus for cleaning used air from spray booths wherein articles are lacquered
For cleaning a flow of used air from a spray booth wherein articles are lacquered, a duct is provided with a first constriction where the flow of used air is brought into contact with washing fluid...
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4204980 |
Method and composition for removing iodine from gases
A method and composition for removing iodine and organic iodides from an iodine-containing off-gas stream is provided. The composition for the removal is a ceramic material impregnated with a...
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4047894 |
Removing carbon dioxide from the air
An improved method and apparatus for removing carbon dioxide from the air in which the air is passed at a slightly elevated pressure over the surfaces of absorption elements impregnated with a...
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3987148 |
Treating gas and wetted granular material in panel bed
A panel bed fitted for puffback cleaning is arranged so that gas entry faces of the granular material in the panel bed can be wetted by a liquid. Efficiency of treatment of a gas for removal of...
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3981694 |
Method and means for air purification during spray-painting
A spray-painting chamber comprises a vertical wall containing an upper opening and a lower opening. Means are provided to supply water to the top of said wall so as to produce a film of water...
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3920422 |
Pollution control apparatus and method
Apparatus operating at low pressure drop and low initial velocity for removing pollutants down to sub-micron sizes from gas streams comprising a nozzle means accelerating the gas flow to about four...
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3907522 |
Method for removing a fluorine compound(s) from gaseous mixture therewith
In a method for removing fluorine compound(s) from gaseous mixture therewith, the mixture is at first introduced to a gas scrubber of gas-liquid contacting type and then it is characterized in that...
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3731457 |
PROCESS FOR SCRUBBING GASES
Scrubbing process for separating vapors, liquid and solid particles from gas by a scrubbing liquid. A spout directs a full stream of the scrubbing liquid at a grid which comprises a multiplicity of...
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3725536 |
METHOD OF THE CONTINUOUS PRODUCTION OF HYDROFLUORIC ACID
A method for the continuous production of hydrofluoric acid by the purification and condensation of the hot reaction gases created by the reaction between fluorspar and sulphuric acid, comprising...
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3724171 |
ANNULAR FLOW CONDENSER
This invention relates to a method of condensing iron chloride gases, particularly ferrous chloride, evolved from the chlorination of titaniferrous ores to separate the ferrous chloride from other...
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3690727 |
DUST SUPPRESSING DURING MINING PROCESS
Dilatant compositions comprising aqueous solutions containing 0.5 to 6.0 weight percent alkali metal borate and 0.5 to 6.0 weight percent water soluble polyvinyl alcohol are effective dust...
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3538684 |
LIQUID/GAS SEPARATION PROCESS AND APPARATUS
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3448562 |
GAS TREATING APPARATUS AND METHOD
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3435592 |
PROCESS AND APPARATUS FOR THE PURIFICATION OF THE GASES GENERATED IN THE CHLORINATING TREATMENT OF ALUMINOUS MELTS
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3403497 |
Process and apparatus for liquid/gas separation
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3388533 |
Process for the preparationof melamine
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3376353 |
Recovery of glycols from polyester production
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