A process for the low temperature, non-incineration decontamination of contaminated materials, such as chemical weapon components containing residual quantities of chemical warfare agents. The process includes the steps of (a) preparing a feed mixture containing the chemical weapon components and organic materials; (b) contacting the feed mixture with steam at substantially ambient pressure in a substantially dry first heated vessel for a period of at least about 15 minutes, the steam being at a temperature of at least about 560.degree. C., (b) removing condensible and non-condensible gases from the first heated vessel and heating them in a second vessel at substantially ambient pressures to temperatures of at least about 500.degree. C. for a period of at least about one second in an atmosphere containing steam in a concentration greater than about 250% of stoichiometry, and (c) catalytically treating non-condensible gases from the second vessel in the presence of oxygen so as to reduce the concentration of chemical warfare agents to less than about 1.0 mg/m.sup.3 at standard temperature and pressure.
RELATED APPLICATION
This is a continuation-in-part of U.S. patent application Ser. No. 09/781,818, filed Feb. 12, 2001, now U.S. Pat. No. 6,462,249 entitled PROCESS FOR THE NON-INCINERATION DECONTAMINATION OF MATERIALS CONTAINING HAZARDOUS AGENTS, which is hereby incorporated by reference in its entirety.
A process for the low temperature, non-incineration decontamination of contaminated materials, such as chemical weapon components containing residual quantities of chemical warfare agents. The process includes the steps of (a) contacting the contaminated materials with steam at substantially ambient pressure in a substantially dry first heated vessel for a period of at least about 15 minutes, the steam being at a temperature of at least about 560.degree. C., (b) removing condensible and non-condensible gases from the first heated vessel and heating them in a second vessel at substantially ambient pressures to temperatures of at least about 500.degree. C. for a period of at least about one second in an atmosphere containing steam, and (c) catalytically treating non-condensible gases from the second vessel in the presence of oxygen so as to reduce the concentration of chemical warfare agents to less than about 1.0 mg/m.sup.3 at standard temperature and pressure.
A process for the low temperature, non-incineration decontamination of contaminated materials, such as chemical weapon components containing residual quantities of chemical warfare agents. The process includes the steps of (a) contacting the contaminated materials with steam at substantially ambient pressure in a substantially dry first heated vessel for a period of at least about 15 minutes, the steam being at a temperature of at least about 560.degree. C., (b) removing condensible and non-condensible gases from the first heated vessel and heating them in a second vessel at substantially ambient pressures to temperatures of at least about 500.degree. C. for a period of at least about one second in an atmosphere containing steam to convert 99.99 wt. % of the chemical warfare agents to non-chemical warfare agents, and (c) treating non-condensible gases from the second vessel with a chemical absorbent, so as to reduce the concentration of chemical warfare agents to less than about 1.0 mg/m.sup.3 at standard temperature and pressure.
