Modeling and Thermodynamic Study of Selected Aqueous Systems From 370 to 415 deg C
Final progress rept. 1 Jun 2001-31 May 2004
BRIGHAM YOUNG UNIV PROVO UT
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The military has a large stockpile of chemical weapons that must be destroyed. This needs to be done as soon as possible to meet treaty obligations and to remove the danger of possible leakage of very hazardous materials. The standard method of destruction is by high-temperature incineration. Drawbacks1 to incineration are the burning of fossil fuel, the high temperatures required 2000 to 3000 deg C, the production of NOx, the high residence times needed to get the required level of destruction, the large space requirements, and the high maintenance needs. A promising alternative to incineration is super critical water oxidation SCWO. 1,2 The following are advantages of SCWO as compared to incineration there are no fossil fuel requirements other than for initial heating, SCWO proceeds at much lower operating temperatures 400 to 600 deg C, there is no NOx formation at these low temperatures, a 99.99 destruction efficiency is achieved at short residence times, the space requirements are much smaller due to the high density of the reactants, the residence time is short, the equipment is less complex, and it is less difficult to satisfactorily contain the hazardous material.