成果報告書詳細
管理番号20140000000528
タイトル*平成24年度中間年報 「新エネルギーベンチャー技術革新事業 新エネルギーベンチャー技術革新事業(バイオマス) バイオマスの半炭化加工と連続固形化技術による広域普及型燃料化システムの開発」
公開日2014/10/29
報告書年度2012 - 2012
委託先名関西産業株式会社 国立大学法人大阪大学
プロジェクト番号P10020
部署名イノベーション推進部
和文要約
英文要約Title: New Energy Venture Business Technology Innovation Program / New Energy Venture Business Technology Innovation Program (biomass) / Development of fuel system for wide area diffusion by semi-carbonization processing of biomass and continuous solidification technology (FY2013-FY2014) FY2013 Annual Report

The wooden biomass, such as rice husk, empty fruit bunch, cedar tip from thinning, are not used effectively because of their shortage of heating value and bulky volume and dispersed collection site. By carbonizing these wooden biomass at lower temperature like 200℃-300℃, and reinforcing them by compression process, it is possible to develop the production system of biomass having higher density and heating value.
We are planning to establish the system to disseminate the biomass fuel through above concept together with cheaper price and easier transportation.
The proposed biomasses are rice husk and sow dust or wood tip from thinning and many unused agricultural residues such as EFB popular in eastern Asia.
Among the ultimate elements of biomass, to remove the oxygen in the moisture or wooden vinegar, this does not perform important role to improve the heating value, is the effective method to enhance the heating value by avoiding the useless consumption of useful carbon necessary for rising up the heating value.
To check the performance of semi-carbonized biomass, it is necessary to see the reaction in the transient temperature between 200℃-400℃ in oxygen or non-oxygen atmosphere.
By using the instruments to measure the TG and DTA, the characteristics of heat response such as heat adsorption or heat radiation during torrefaction became clear.
We found the heavy tars contain much molecule remain as charcoal and contribute to heat increase.
The main target of this project is to secure the concentration of fixed carbon more than 70% and the yield of charcoal less than 50%-60% compared that of original materials.
These results were achieved by examine the three items as follow.
(1) Development of the technologies of semi carbonization: Study the heating condition, yielding target, volatile components in the testing biomass and concentration of fixed carbon effective for increasing the heating value per unit weight.
(2) Development of the device for torrefaction: Develop the continuous processing furnace suitable for stable operation.
(3) Development of technology of solidification of the biomass by compressing and molding: As it become easier to break semi carbonized biomass into pieces, the simple device for casting and molding of the biomass is important.
As the ripple effects of the project, the reduction of transportation charge by decreasing bulky volume and stable supply of biomass as auxiliary fuel for boiler for fire power station will contribute for environmental issue like CDM, and will facilitate the utilization of biomass from residual agricultural product both in Japan and eastern Asia.
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