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On-Demand Generation of Hydrogen Peroxide for Vaporous Decontamination Systems

Description:

TECHNOLOGY AREA(S): Materials, Chem Bio Defense

OBJECTIVE:

Develop a mobile system capable of providing on-demand generation of aqueous hydrogen peroxide (H2O2) for Service Equipment Decontamination System (SEDS).

DESCRIPTION:

The ability to decontaminate mission critical equipment is necessary to minimize exposure risks and maintain operations after a chemical agent attack or release. Vaporous hydrogen peroxide (VHP) has been explored as a methodology for decontamination of sensitive, mission critical equipment.1Although VHP technologies are promising, generation of VHP requires a supply of liquid solutions of hydrogen peroxide at high concentrations (35 percent). Concentrated hydrogen peroxide is hazardous, unstable, has a short shelf-life, and is restricted to ground transport. A mobile system capable of providing hydrogen peroxide on demand would significantly increase the feasibility of VHP-based decontamination systems. For this objective, and for this topic, the hydrogen peroxide will be generated "On Demand" from air and potable water, with power. Consumables are to be kept to an absolute bare minimum.2-5 The desired system will have the lowest obtainable Size, Weight and Power demand (SWaP).The final system will be capable of generating at least 0.2 liters of 35 percent aqueous hydrogen peroxide per hour for a minimum of 14 hours. The final system will be powered from an external source such as 12-24 volt vehicle power, or conventional military generator.The final system will weigh no more than 40 pounds.

PHASE I:

Design and develop an "On Demand" process to generate 10%-15% concentrations of aqueous hydrogen peroxide. Demonstrate "proof of concept" of hydrogen peroxide generation adhering to constraints in the topic description (above). Construct a "breadboard prototype" and demonstrate the system can generate aqueous solutions of hydrogen peroxide that meet the above description. Identify scale-up limitations and determine which factors can be optimized to increase peroxide output concentration and throughput. Estimate the logistic requirements of the proposed process.

PHASE II:

Refine the design to a higher fidelity prototype that provides the form, fit and function of the targeted end-product as described.The system will be capable of delivering food grade 35 percent aqueous solution of hydrogen peroxide. Verify performance by comparing "on demand" H2O2 against reagent grade H2O2.Demonstrate that the system will be stable for a minimum of 14 hours of continuous operation per day. Consumption rate of items such as power and consumables will be determined. The system will be modular and/or tunable to meet different peroxide generation requirements for both small and large-scale decontamination systems.

PHASE III:

PHASE III:Refine the design to meet size, weight, and power requirements. Demonstrate system integration with existing VHP decontamination platforms. Test throughput and peroxide concentration. Provide military users prototype systems for field-testing. Obtain user feedback based on test & evaluation to further refine the design.


PHASE III DUAL USE APPLICATIONS:This technology will be useful to civilian and military first responders, and may also be applied to sterilize medical equipment, and facilitate water treatment in remote locations.

KEYWORDS: decontamination; hydrogen peroxide; chemical warfare agent; hazardous materials; in-situ; oxidation

References:

1. Wagner, George W., David C. Sorrick, Lawrence R. Procell, Mark D. Brickhouse, Iain F. Mcvey, and Lewis I. Schwartz. "Decontamination of VX, GD, and HD on a Surface Using Modified Vaporized Hydrogen Peroxide." Langmuir 23, no. 3 (January 2007): 1178-86. https://doi.org/10.1021/la062708i.

2. Campos-Martin, Jose M., Gema Blanco-Brieva, and Jose L. G. Fierro. "Hydrogen Peroxide Synthesis: An Outlook beyond the Anthraquinone Process." Angewandte Chemie International Edition 45, no. 42 (October 27, 2006): 6962-84. https://doi.org/10.1002/anie.200503779.

3. Xia, Chuan, Yang Xia, Peng Zhu, Lei Fan, and Haotian Wang. "Direct Electrosynthesis of Pure Aqueous H2O2 Solutions up to 20% by Weight Using a Solid Electrolyte." Science 366, no. 6462 (October 11, 2019): 226-31. https://doi.org/10.1126/science.aay1844.

4. Chen, Zhihua, Shucheng Chen, Samira Siahrostami, Pongkarn Chakthranont, Christopher Hahn, Dennis Nordlund, Sokaras Dimosthenis, Jens K. Norskov, Zhenan Bao, and Thomas F. Jaramillo. "Development of a Reactor with Carbon Catalysts for Modular-Scale, Low-Cost Electrochemical Generation of H2020." Reaction Chemistry & Engineering 2, no. 2 (2017): 239-45. https://doi.org/10.1039/C6RE00195E.

5. Ponce de Leon, Carlos. "In Situ Anodic Generation of Hydrogen Peroxide." Nature Catalysis 3, no. 2 (February 2020): 96-97. https://doi.org/10.1038/s41929-020-0432-2.

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