成果報告書詳細
管理番号20130000000747
タイトル*24年度中間年報 バイオマスエネルギー技術研究開発 戦略的次世代バイオマスエネルギー利用技術開発事業(次世代技術開発) ABC(Advanced Biomass Co-gasification)次世代バイオマス液体燃料製造システム技術の開発
公開日2014/6/21
報告書年度2012 - 2012
委託先名一般財団法人石炭エネルギーセンター 国立大学法人岐阜大学
プロジェクト番号P10010
部署名新エネルギー部
和文要約
英文要約Title: Research and Development of Biomass Energy Technologies; Development of Strategic, Next-Generation Technologies for Biomass Energy Use (next-generation technology development); and Development of Advanced Biomass Co-gasification (ABC), a Next-Generation Technology for Biomass Liquid Fuel Production Systems (FY2012-FY2013) FY2012 Annual Report: During the FY2012 - 2013 period, the investigation into the reforming conditions for the tar that results from the fluidized bed gasification of biomass included the use of a bench-scale fluidized bed reactor to study the supply of biomass and coal, operating conditions, and control of produced gas composition, and also the performance of a Fischer-Tropsch (FT) synthesis (liquification) catalyst that can be utilized even in the presence of small quantities of light tar (benzene, toluene and xylene: BTX) and H2S (0 - 10 ppm). The work also included an analysis of the proposed gasification and liquification matching system.(1) Development of Technology for Three-Tower Circulating Fluidized Bed Gasification of Biomass: Work undertaken this fiscal year included an analysis of optimum temperature and an investigation into the influence of lime (CaO particles) on the steam reforming behavior of tar-like material (toluene) when lime and tar-like material are injected into the fluidized bed reactor. The research findings included that the ability to perform tar reforming was enhanced when the CaO particles were small and the partial pressure of steam was high, and that the optimum temperature for tar steam reforming was 800 degree-C or higher. A small-scale, three-tower circulating fluidized bed incorporating a gasification reactor, char combustion reactor, and tar reforming reactor was also designed and built during this fiscal year.(2) Research and Development of Liquification Catalyst Able to Tolerate Tar and Sulfur: To develop a sulfur-tolerant catalyst, calculation results Zn would react with H2S to form ZnS, even under the same CO2 conditions. To conduct performance tests on the tar- and sulfur-tolerant catalyst and to investigate the influence of the slurry bed reaction on the catalyst life, and gas composition. It found that the activity of Co-based catalysts in which TiO2 was used as the catalyst support was enhanced by the addition of alkali earth metals, and that the addition of Ca in particular was especially effective.(3) Analysis of Gasification and Liquification Matching System: The Aspen Plus software was used to build models of three-tower gasification, scrubbing, and liquid fuel synthesis, respectively. This work found that the optimum tar reforming temperature is 850 degree-C to 950 degree-C, and that fuel synthesis (F-T synthesis) achieves a higher ratio of liquid fuel synthesis at higher pressures.
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