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8177885 |
Gas separation process using membranes with permeate sweep to remove CO2 from gaseous fuel combustion exhaust
A gas separation process for treating exhaust gases from the combustion of gaseous fuels, and gaseous fuel combustion processes including such gas separation. The invention involves routing a first...
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8007566 |
Electrostatic precipitator having a spark current limiting resistors and method for limiting sparking
An electrostatic precipitator including: a collecting electrode in a gas passage; a discharge electrode in the gas passage and separated by a gap from the collecting electrode; a power supply...
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7862649 |
Particulate matter detection device and particulate matter detection method
A particulate matter detection device includes a collection electrode that collects the particulate matter, a discharge electrode that allows a corona discharge to occur when a voltage is applied...
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7833322 |
Air treatment apparatus having a voltage control device responsive to current sensing
An air treatment apparatus that includes an electrode assembly, a voltage supply, a current sensing device operably coupled to the electrode assembly, and a voltage control device coupled to the...
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7736418 |
Control device and control method for an electrostatic filter with a configurable number of parallel and serial filter zones
The aim of the invention is to be able to adapt an item of visualization or optimization software with the least possible amount of effort made on any electrostatic filter configurations. To this...
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7655068 |
Method and systems to facilitate improving electrostatic precipitator performance
A method to facilitate improving electrostatic precipitator performance is provided. The method includes providing an electrostatic precipitator including an inlet, a collector chamber and an...
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7651548 |
Discharge device and air purification device
The frequency of a cyclically varying voltage, (fv), is made equal to or higher than the frequency of a streamer discharge, (fs), thereby making it possible to reduce the discharge delay time which...
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7497893 |
Method of electrostatic acceleration of a fluid
A method for handling a fluid may be incorporated into the operation of, for example, a corona discharge device and an electric power supply. Such a corona discharge device typically includes at...
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7452403 |
System and method for applying partial discharge analysis for electrostatic precipitator
A system for detecting partial discharge activity in an electrostatic precipitator is provided. The system includes one or more sensors configured to receive and transmit signals representative of...
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7364606 |
Exhaust emission control device
Provided are a hollow inner electrode constituted by an electrically conductive filter capable of capturing particulates, a cylindrical outer electrode circumferentially surrounding the electrode,...
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7357828 |
Air cleaner including constant current power supply
An air cleaner including a constant current power supply is provided according to an embodiment of the invention. The air cleaner includes a collector cell and a constant current power supply...
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7351274 |
Air filtration system control
An intense field dielectric air filtration system associated with an air conditioning unit includes a microprocessor based control system which may be connected to the thermostat of the air...
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7258723 |
Particulate filter assembly and associated method
A particulate filter assembly includes an electrode assembly, a particulate filter positioned in an electrode gap defined between two electrodes of the electrode assembly, a power supply...
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7182805 |
Corona-discharge air mover and purifier for packaged terminal and room air conditioners
An air conditioning device for heating and/or an environment is provided. The air conditioning device includes a heat exchanging apparatus, a passage, and a corona discharge apparatus. The passage...
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7122070 |
Method of and apparatus for electrostatic fluid acceleration control of a fluid flow
A device for handling a fluid includes a corona discharge device and an electric power supply. The corona discharge device includes at least one corona discharge electrode and at least one...
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7097689 |
Process and system for purifying gases
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a...
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7081152 |
ESP performance optimization control
A gas separation apparatus which uses electrostatic precipitators and a DC power supply is controlled to optimally remove moderate to high resistivity ash. The DC power supply is pulse width...
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6461405 |
Method of operating an electrostatic precipitator
A method of operating an electrostatic precipitator (7) includes feeding the precipitator with electric power generated by a power supply (10) according to a regime adapted to impart between the...
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6350303 |
Solid powder trapping system
A solid powder trapping system for filtering out solid powder from a mixture of gaseous reactants that also includes a device capable of determining the degree of powder accumulation inside the...
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5707422 |
Method of controlling the supply of conditioning agent to an electrostatic precipitator
A method for use in an electrostatic precipitator unit, of controlling, with a view to cleaning an incoming dust-laden gas, the supply of conditioning agent to the incoming contaminated gas...
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5639294 |
Method for controlling the power supply to an electrostatic precipitator
Method for controlling, in case of flashover between electrodes in an electrostatic precipitator, the current supply to the electrodes from a controllable high-voltage direct-current source. The...
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5597403 |
Flue gas conditioning system for intermittently energized precipitation
A system for preconditioning flue gas to be treated in an electrostatic precipitator having a set of electrostatic elements and a power supply, which supplies an intermittent power to the...
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5591249 |
Flue gas conditioning method for intermittently energized precipitation
A method is used for preconditioning flue gas to be treated in an electrostatic precipitator having a set of electrostatic elements which are intermittently energized by a power supply. The method...
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5542964 |
Method of air purification
Air purification system where air is subjected to complex electrical field resulting from a DC voltage and AC frequency in kilovolt and kilohertz range respectively, applied to screen assembly in...
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5401299 |
Air purification apparatus
Air purification system where air is subjected to complex electrical field resulting from a DC voltage and AC frequency in kilovolt and kilohertz range respectively, applied to screen assembly in...
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5356597 |
In-duct flue gas conditioning system
The present invention provides a flue gas conditioning system and method for generating conditioning agent used in the removal of entrained particles in a flue gas flow with an electrostatic...
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5217504 |
Method for controlling the current pulse supply to an electrostatic precipitator
In a method for controlling the current pulse supply to the discharge electrodes of an electrostatic precipitator unit in order to achieve maximum separation of dust from gases conducted between...
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5061296 |
Air purification system
An air purification system for subjecting air to a complex electrical field including sensors and a monitor/controller for monitoring effectiveness, operational conditions of the electrical field...
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4936876 |
Method and apparatus for detecting back corona in an electrostatic filter with ordinary or intermittent DC-voltage supply
In an electrostatic precipitator for cleansing flue gases from industrial plants, comprising one or more precipitator sections powered from a separate continuous or intermittent DC-voltage electric...
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4648887 |
Method for controlling electrostatic precipitator
There is disclosed a method for controlling an electrostatic precipitator which includes discharging electrodes and collecting electrodes and which is supplied with a rectified secondary high...
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4624685 |
Method and apparatus for optimizing power consumption in an electrostatic precipitator
A process for optimizing the power consumption of electrostatic precipitators communicating with a boiler or the like includes a load indexed signal fed forward to a field power controller to...
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4536698 |
Method and apparatus for supplying voltage to high-ohmic dust electrostatic precipitator
The method of supplying voltage to an electrostatic precipitator, includes periodically reversing the polarity of a supply voltage; intermittently supplying voltage to the precipitator; and the...
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4522634 |
Method and apparatus for automatic regulation of the operation of an electrostatic filter
The operation of one or more full-size electrostatic filters for removing solid impurities from gaseous carrier media is regulated automatically as a function of variations of breakdown potential...
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4521223 |
Method for determining the existence of an optimal interval for rapping the electrodes of an electrostatic precipitator
A method for operationally determining the existence of an optimal rapping interval for the collector electrodes of an electrostatic precipitator comprises the comparison of the current-voltage...
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4477263 |
Apparatus and method for neutralizing static electric charges in sensitive manufacturing areas
An apparatus and method for neutralizing static electric charges are disclosed, which include a cooperating pair of laterally spaced apart electrodes disposed so as to be in a flow path of a moving...
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4432061 |
System for controlling the voltage of an electrofilter
A system for controlling the voltage of an electrofilter of the type which, after a voltage breakdown, substantially reduces the magnitude of the electrofilter voltage. After a predetermined...
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4400662 |
Method and apparatus for energizing an electrostatic precipitator
A method and apparatus for providing a pulse-generating control to energize the electrodes of an electrostatic precipitator which includes means for producing a voltage between the electrodes of...
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4382805 |
System for automatically controlling the breakdown voltage limit of an electrofilter
A system for automatically controlling the voltage of an electrostatic filter with respect to its breakdown voltage limit. The detection of secondary voltage breakdowns which occur within a...
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4311491 |
Electrostatic precipitator control for high resistivity particulate
A method and apparatus for optimizing the operating efficiency of an electrostatic precipitator based on controlling the average input power of the precipitator electrodes in response to control...
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3527022 |
ELECTRICAL CONTROL METHOD AND APPARATUS
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3292042 |
Process and apparatus for producing a substantially neutral electric atmosphere
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