Calorimetric Study and Kinetical Analysis of Biocoke for Safety Storage by using Microcalorimeter

Abstract

　　　Almost all solid state materials are deteriorated by several factors such as oxygen, heat, water, light, radiation and so on. These deteriorations will cause the unexpected disasters. Therefore, it is important that reaction rates and heats of deterioration for solid state materials are investigated. Recently, biocoke is investigated as an effective fuel. Biocoke has some excellent features of high density, high strength, no water absorption and no fermentation. However, heat behaviors of biocoke which is storage under the several environments are not known well. In this report, some heat flux curves of deteriorations of biocoke from 298.15 K to 323.15 K were measured by using micro-calorimeter (TAM II). Then, these curves were fitted by zero order reaction rate equation, α = kt, and reaction rate constants, k, were calculated. The activation energies of deterioration of biocoke were calculated from these reaction rate constants by using Arrhenius equation. Moreover, a half lives of biocoke for measurement temperatures were estimated from reaction rate constants. These results will be reported in detail.