Method and apparatus for controlling accidental releases of tritium

Title: Method and apparatus for controlling accidental releases of tritium

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Abstract

An improvement is described in a tritium control system based on a catalytic oxidation reactor wherein accidental releases of tritium into room air are controlled by flooding the catalytic oxidation reactor with hydrogen when the tritium concentration in the room air exceeds a specified limit. The sudden flooding with hydrogen heats the catalyst to a high temperature within seconds, thereby greatly increasing the catalytic oxidation rate of tritium to tritiated water vapor. Thus, the catalyst is heated only when needed. In addition to the heating effect, the hydrogen flow also swamps the tritium and further reduces the tritium release. 1 fig.

Inventors:: Galloway, T.R.

Issue Date:: 1980-04-01

OSTI Identifier:: 7143552

Patent Number(s):: 4196176 A

Application Number:: PPN: US 5-930629

Assignee:: Dept. of Energy, Washington, DC (United States) PTO; EDB-94-126300

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Resource Relation:: Patent File Date: 3 Aug 1978

Country of Publication:: United States

Language:: English

Subject:: 61 RADIATION PROTECTION AND DOSIMETRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; TRITIUM; AIR POLLUTION CONTROL; OXIDATION; CATALYSTS; HEATING; HYDROGEN; INDOOR AIR POLLUTION; RADIATION PROTECTION; REACTION HEAT; SYNTHESIS; TRITIUM OXIDES; AIR POLLUTION; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; CHEMICAL REACTIONS; CONTROL; ELEMENTS; ENTHALPY; HYDROGEN COMPOUNDS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POLLUTION; POLLUTION CONTROL; RADIOISOTOPES; THERMODYNAMIC PROPERTIES; TRITIUM COMPOUNDS; YEARS LIVING RADIOISOTOPES; 560180* - Radiation Protection Procedures- (1992-); 054000 - Nuclear Fuels- Health & Safety

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                    Galloway, T.R. Method and apparatus for controlling accidental releases of tritium.  United States: N. p., 1980. 
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                    Galloway, T.R. Method and apparatus for controlling accidental releases of tritium.  United States.

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                    Galloway, T.R. Tue .  
        "Method and apparatus for controlling accidental releases of tritium".  United States.

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@article{osti_7143552,

  title        = {Method and apparatus for controlling accidental releases of tritium},

  author       = {Galloway, T.R.},

  abstractNote = {An improvement is described in a tritium control system based on a catalytic oxidation reactor wherein accidental releases of tritium into room air are controlled by flooding the catalytic oxidation reactor with hydrogen when the tritium concentration in the room air exceeds a specified limit. The sudden flooding with hydrogen heats the catalyst to a high temperature within seconds, thereby greatly increasing the catalytic oxidation rate of tritium to tritiated water vapor. Thus, the catalyst is heated only when needed. In addition to the heating effect, the hydrogen flow also swamps the tritium and further reduces the tritium release. 1 fig.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1980},

  month        = {4}

}

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Method and apparatus for controlling accidental releases of tritium

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An improvement in a tritium control system based on a catalytic oxidation reactor is provided wherein accidental releases of tritium into room air are controlled by flooding the catalytic oxidation reactor with hydrogen when the tritium concentration in the room air exceeds a specified limit. The sudden flooding with hydrogen heats the catalyst to a high temperature within seconds, thereby greatly increasing the catalytic oxidation rate of tritium to tritiated water vapor. Thus, the catalyst is heated only when needed. In addition to the heating effect, the hydrogen flow also swamps the tritium and further reduces the tritium release.
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