数値解析によるバイオジェット燃料製造向け噴流床ガス化炉の商用機性能評価

抄録

In the aviation industry, measures to prevent global warming by reducing carbon dioxide emissions are becoming a problem against the background of aviation demand that is expected to expand in the future. The International Civil Aviation Organization (ICAO) has set long-term carbon dioxide emission reduction targets, and the total emissions will not increase after 2021. In order to achieve these targets, it is essential to promote the spread of bio jet fuel. Our company uses the gasification / Fischer-Tropsch (FT) synthesis as a bio jet fuel manufacturing technology. In the gasification process, the entrained flow gasifier has been developed that realized high temperature gasification, reduced tar generation, and stable gas composition generation. Good results were obtained in a pilot scale demonstration test.

In order to design a commercial plant, it is necessary to change the shape by scaling up and to accommodate a wide range of biomass feedstocks. Numerical analysis is one of the methods to evaluate these effects quickly and inexpensively. In the previous report, the "Biomass Gasification Performance Prediction Tool" that can predict gasification performance based on basic tests was constructed, and good results were obtained in the simulation of demonstration tests. However, previously reported tools only deal with wood chip calculations. Therefore, in this paper, model parameters of multiple biomass were determined on the basis of basic tests, and gasification performance of commercial machines was evaluated.