3-92-3 グリーン海洋バイオマス(ミル)の熱重量分析(TGA)(Session3 バイオマス等,ポスター発表)

概要

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In this research work, the pyrolysis characteristics of a macroalgae (Codium Fragile) as a model for marine biomass were studied using a thermogravimetric analyzer (TGA) to understand the devolatilization process as they undergo heat treatment. Proximate analysis of the algae showed 6-10% water content (for freeze dried sample), 35-40% degradable products, 10-16% fixed carbon, and 35-40% ash content. For pyrolysis reactions, the influences of particle size, initial weight of the sample, and heating rate on the devolatilization of the algae particles have been investigated. Results showed that smaller particle size has more ash content compared to larger particle size. The TG curve for variation in particle size and initial weight of the sample showed significant difference. According to the TG curves of the algae samples at different initial weights, it is clear that the char yield percentage increased as the initial weight of the algae increased. In addition, the thermogram of pyrolysis of algae differed significantly for variation in heating rate. As the heating rates increased, the char yield decreased somewhat.
2011-08-09