Hydrogen peroxide vapor detoxifying system using honeycomb structure

• US 10,464,020 B1
• Filed: 01/25/2019
• Issued: 11/05/2019
• Est. Priority Date: 10/05/2018
• Status: Active Grant

• Current Assignee: Korea Advanced Institute of Science and Technology
• Original Assignee: Korea Advanced Institute of Science and Technology
• Inventors: Lee, Kang Bong, Kim, Yeong Cheon, Nam, Yun Sik, Jeon, Jin Oh, Park, Jong Ho
• Primary Examiner(s): Perez, Jelitza M
• Application Number:
  US16/258,142
• Time in Patent Office: 284 Days
• Field of Search: None
• CPC Class Codes: B01D 2221/08 Mobile separation devices
• CPC Class Codes: B01D 2255/1021 Platinum
• CPC Class Codes: B01D 2255/1023 Palladium
• CPC Class Codes: B01D 2255/2092 Aluminium
• CPC Class Codes: B01D 2257/93 Toxic compounds not provided for in groups B01D2257/00 - B01D2257/708
• CPC Class Codes: B01D 2259/4508 for cleaning air in buildings
• CPC Class Codes: B01D 2259/4533 for medical purposes
• CPC Class Codes: B01D 53/76 Gas phase processes, e.g. by using aerosols
• CPC Class Codes: B01D 53/8671 Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
• CPC Class Codes: B01D 53/8696 Controlling the catalytic process
• CPC Class Codes: B01D 53/96 Regeneration, reactivation or recycling of reactants
• CPC Class Codes: B01J 23/42 Platinum
• CPC Class Codes: B01J 23/44 Palladium
• CPC Class Codes: B01J 2523/828 Platinum
• CPC Class Codes: B01J 35/56 Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
• CPC Class Codes: C01B 15/013 Separation; Purification; Concentration

Abstract

The present disclosure relates to a hydrogen peroxide vapor decomposition and detoxification system including a hydrogen peroxide vapor suction unit which sucks hydrogen peroxide vapor in a target space to be sterilized, a hydrogen peroxide vapor decomposition and detoxification unit which decomposes the sucked hydrogen peroxide vapor, a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, and a control unit which controls an amount of vapor suction of the vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit.

Claims

1. A hydrogen peroxide vapor decomposition and detoxification system comprising:

a hydrogen peroxide vapor decomposition and detoxification unit which decomposes sucked hydrogen peroxide vapor, the hydrogen peroxide vapor decomposition and detoxification unit including a plurality of hydrogen peroxide vapor suction units which suck the hydrogen peroxide vapor in a target space to be sterilized;

a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, the vapor discharge unit including a plurality of discharge openings; and

a controller which controls an amount of vapor suction of each hydrogen peroxide vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit,

wherein each hydrogen peroxide vapor suction unit includes a first decomposition unit in the form of a first honeycomb structure to decompose the hydrogen peroxide vapor, and

wherein each first honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

2. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein the hydrogen peroxide vapor decomposition and detoxification system further comprises casters to move the hydrogen peroxide vapor decomposition and detoxification system.

3. The hydrogen peroxide vapor decomposition and detoxification system according to claim 2, wherein the casters further comprise an electric-driven device that can operate by a wireless signal.

4. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein each first honeycomb structure is hermetically fixed to a suction opening formed in a respective one of the vapor suction units.

5. The hydrogen peroxide vapor decomposition and detoxification system according to claim 1, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a heater to heat the vapor decomposed from the first decomposition unit.

6. The hydrogen peroxide vapor decomposition and detoxification system according to claim 5, wherein the heater heats the vapor decomposed from the first decomposition unit in a range of room temperature to 250°

C.

7. The hydrogen peroxide vapor decomposition and detoxification system according to claim 6, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a second decomposition unit to decompose the hydrogen peroxide vapor heated from the heater, and

wherein the second decomposition unit comprises:

a plate hermetically fixed to a housing of the hydrogen peroxide vapor decomposition and detoxification unit and including a plurality of openings; and

a plurality of second honeycomb structures, each second honeycomb structure being hermetically fixed to a respective opening of the plate.

8. The hydrogen peroxide vapor decomposition and detoxification system according to claim 7, wherein each second honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

9. The hydrogen peroxide vapor decomposition and detoxification system according to claim 8, wherein the vapor discharge unit further comprises a fan unit having a fan of which rotation speed can be adjusted by the controller.

10. The hydrogen peroxide vapor decomposition and detoxification system according to claim 9, wherein the vapor discharge unit comprises a cover which covers a top and a plurality of discharge openings formed in a side, and

wherein the decomposition products of the hydrogen peroxide vapor are discharged through the side.

11. The hydrogen peroxide vapor decomposition and detoxification system according to claim 9, wherein the hydrogen peroxide vapor decomposition and detoxification system further comprises a sensor to measure a temperature of the heater, a humidity of the target space to be sterilized, and a concentration of hydrogen peroxide vapor included in the target space to be sterilized;

and

a display to display the temperature of the heater and the fan speed.

12. A hydrogen peroxide vapor decomposition and detoxification system comprising:

a hydrogen peroxide vapor decomposition and detoxification unit which decomposes sucked hydrogen peroxide vapor, the hydrogen peroxide vapor decomposition and detoxification unit including a plurality of hydrogen peroxide vapor suction units which suck the hydrogen peroxide vapor in a target space to be sterilized;

a vapor discharge unit which discharges decomposition products of the hydrogen peroxide vapor, the vapor discharge unit including a plurality of discharge openings; and

a controller which controls an amount of vapor suction of each hydrogen peroxide vapor suction unit, decomposition and detoxification of the hydrogen peroxide vapor decomposition and detoxification unit, and the vapor discharge unit,

wherein each hydrogen peroxide vapor suction unit includes a first decomposition unit in the form of a first honeycomb structure to decompose the hydrogen peroxide vapor, and

wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a heater to heat the vapor decomposed from the first decomposition unit.

13. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the heater heats the vapor decomposed from the first decomposition unit in a range of room temperature to 250°

C.

14. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein each first honeycomb structure is hermetically fixed to a suction opening formed in a respective one of the vapor suction units.

15. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the hydrogen peroxide vapor decomposition and detoxification unit further comprises a second decomposition unit to decompose the hydrogen peroxide vapor heated from the heater, and

wherein the second decomposition unit comprises:

a plate hermetically fixed to a housing of the hydrogen peroxide vapor decomposition and detoxification unit and including a plurality of openings; and

a plurality of second honeycomb structures, each second honeycomb structure being hermetically fixed to a respective opening of the plate.

16. The hydrogen peroxide vapor decomposition and detoxification system according to claim 15, wherein each second honeycomb structure includes platinum and palladium as a hydrogen peroxide decomposition catalyst.

17. The hydrogen peroxide vapor decomposition and detoxification system according to claim 12, wherein the vapor discharge unit further comprises a fan unit having a fan of which rotation speed can be adjusted by the controller.