環境工学総合シンポジウム講演論文集
Online ISSN : 2424-2969
セッションID: 212
会議情報
212 石炭火力発電所混焼を想定した木質バイオマス供給システムの設計(環境マネジメント・手法(1))
森上 慶太古林 敬顕中田 俊彦
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会議録・要旨集 フリー

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The purpose of the study is to design a woody biomass supply system for coal co-firing, and to evaluate the system considering the three dimensions of energy, economic, and environmental impact. Attention to co-firing of woody biomass in coal-fired power plants as a method to reduce CO_2 emissions has been growing. It is important to design the supply system considering the dimensions energy balance, economic efficiency, and environmental impact, since the potential of woody biomass resources differ in each region. The study targets five types of woody biomass; forest wood residues, forest thinnings, sawmill wood residues, construction wastes and pruned branches of finit trees. The system contains of collecting of biomass, transporting raw materials, producing wood fuels, transporting wood fuels, and coal co-firing. The study evaluates 6 cases which differ in wood fuel production location and the type of wood fuel produced. The results show that pellets produced at the resource generation points have the lowest amount of energy onsumption, wood fuel supply cost and CO_2 emissions.
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