| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring the amount of components contained in a soil from the carbon dioxide content, wherein the temperature of catalyst layer filling the reaction tube can be lowered and the low energy requirement for measurement is sought. SOLUTION: In the method for measuring the amount of the components in a soil by loading a gasification apparatus with the soil containing petroleum hydrocarbon components, gasifying the components in the soil by heat treatment, and by introducing a mixed gas of oxygen and nitrogen to the gasification apparatus described above to send the gasified components to a reaction tube filled with an oxidation catalyst to burn, and measuring carbon dioxide contents generated by this process, the method for measuring petroleum hydrocarbon components in the soil uses a spherical platinum catalyst having a 2-4 mm diameter and platinum holding amount of 0.25 mass% as the oxidation catalyst described above. COPYRIGHT: (C)2009,JPO&INPIT
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