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US 11,117,138 B2Granted
Systems and methods for gas cleaning using electrostatic precipitation and photoionization
AssigneeWashington University
InventorsPratim Biswas, Tandeep S. Chadha, Jiaxi Fang
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Abstract
A gas cleaning system includes an inlet receiving a gas, an outlet spaced apart from the inlet, a gas channel defined between the inlet and the outlet to direct the gas from the inlet to the outlet, a photoionizer disposed to emit radiation towards a portion of the gas channel, and a first electrode module. The first electrode module includes a first discharge electrode assembly that generates a corona discharge within the gas channel and a first collection electrode assembly that collects ionized particles from the gas in the gas channel.
Claims15
A gas cleaning system comprising:
- an inlet configured to receive a gas;
- an outlet spaced apart from the inlet;
- a gas channel defined between the inlet and the outlet to direct the gas from the inlet to the outlet;
- a photoionizer disposed to emit radiation towards a portion of the gas channel, wherein the photoionizer comprises a soft x-ray photoionizer configured to emit radiation at a wavelength between about 0.13 nanometers and about 0.41 nanometers;
- a barrier positioned at the outlet, the barrier configured to collect ionized particles and to prevent the radiation emitted by the photoionizer from passing through the outlet;
- and
- a first electrode module comprising
- a first discharge electrode assembly configured to generate a corona discharge within the gas channel;
- and
- a first collection electrode assembly configured to collect ionized particles from the gas in the gas channel.
7 more elements
Dependencies are inferred from the claim text.