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US 11,698,232 B1Granted
System and method utilizing thermochemical energy storage for abatement of volatile organic compounds
AssigneeSiemens Energy, Inc.
InventorsRichard J. Wiederien, Joseph T. Williams, Enrique J. Mora
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Abstract
System and method utilizing thermochemical energy storage for abatement of volatile organic compounds (VOCs) are provided. The system includes a thermochemical energy storage module cyclically operable in a discharging cycle and in a charging cycle. Abatement of VOCs may be performed in either cycle. Disclosed embodiments are expected to provide a zero-added carbon VOC abatement system that in certain situations can operate uninterruptedly 24/7 with the flexibility to facilitate consumption of energy during periods of inexpensive rates for electricity.
Claims20
A system comprising:
- a thermochemical energy storage module cyclically operable in a discharging cycle and in a charging cycle, the thermochemical energy storage module having a chamber in fluid communication with a first chamber port and a second chamber port;
- in the discharging cycle, a gas mover fluidly coupled to the first chamber port to supply into the chamber a flow of gas containing volatile organic compounds having a first concentration, the volatile organic compounds being subjected to destructive thermal oxidation in response to thermal energy discharged by the thermochemical energy storage module so that discharge gas having a second concentration of the volatile organic compounds exits from the chamber by way of the second chamber port, wherein the second concentration is less than the first concentration;
- a flow meter and a flow valve in fluid communication with the chamber;
- and
- a controller coupled to the flow meter and to the flow valve to control a rate of the flow of the gas containing the volatile organic compounds based on a desired residence time for the flow of the gas.
2 more elements
A system comprising:
- a thermochemical energy storage module cyclically operable in a discharging cycle and in a charging cycle, the thermochemical energy storage module having a chamber in fluid communication with a first chamber port and a second chamber port;
- in the discharging cycle, a compressor fluidly coupled to the first chamber port to supply into the chamber of the thermochemical energy storage module a flow of pressurized gas containing volatile organic compounds having a first concentration, the volatile organic compounds being subjected to destructive thermal oxidation in response to thermal energy discharged by the thermochemical energy storage module so that so that pressurized discharge gas having a second concentration of the volatile organic compounds exits from the chamber by way of the second chamber port;
- a flow meter and a flow valve in fluid communication with the chamber;
- a controller coupled to the flow meter and to the flow valve to control a rate of the flow of the gas containing the volatile organic compounds based on a desired residence time for the flow of the gas;
- in the charging cycle, a thermal source in thermal communication with the chamber to generate thermal energy, wherein a suction gas mover is fluidly coupled to the first chamber port to admit into the chamber through the second chamber port a flow of gas containing volatile organic compounds at the first concentration, the volatile organic compounds being subjected to destructive thermal oxidation in response to the generated thermal energy so that discharge gas having the second concentration of the volatile organic compounds exits from the chamber by way of the first chamber port;
- and
- a turbomachine connected to the second chamber port to receive the pressurized discharge gas, wherein the temperature of the pressurized discharge gas is in a range from 1000° C. to 1500° C.
4 more elements
Dependencies are inferred from the claim text.