成果報告書詳細
管理番号20140000000165
タイトル*平成25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(実用化技術開発) 木質バイオマスのガス化によるSNG製造技術の研究開発
公開日2014/5/2
報告書年度2013 - 2013
委託先名株式会社IHI アタカ大機株式会社
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: Project to Develop Next-generation Technology for Strategic Utilization of Biomass Energy, SNG Production from Woody biomass Using Gasification Process (FY2012-FY2015) FY2013 Annual Report

This R&D project is aim to establish an effective SNG production process from woody biomass by combining dual fluidized bed gasification with a novel methanation process under the atmospheric pressure.

1 Optimization of gasifier for using biomass
From the test in the pilot scale gasifier of the steam reduction condition, we could achieve the carbon conversion at more than the set target. Consequently, the total process efficiency from ASPEN PLUS simulation was exceeding the set target as well. For the plant size optimization, the experiments using pilot plant have been done. It was found that, the size of the gasifier and combustor for biomass could be reduced compared to the present design of coal.
2 Development of highly efficient tar reformer
The efficient tar reformer was built for syngas from the pilot plant, which the concentration of heavy and light tar in the syngas could be reformed for more than 99%. From this data, the ASPEN PLUS simulation also showed the result of the cold gas efficiency after tar reforming at more than the set target.
3 Development of methanation process for gasified gas
Pilot scale plant for methanation, which consists of multi pipe heat exchanger type reactors with highly active catalyst, was designed based on experimental data obtained from the lab and bench scale methanation experiments. The pilot scale plant for methanation was connected to the pilot scale gasifier to demonstrate the SNG production using woody biomass and series of pilot scale experiments were conducted. Consequently, more than 70% methanation efficiency, as the target of this project was achieved.
An acceptable condition of SNG was surveyed from the information provided by domestic gas companies. Heat and material balance of total SNG production system was also calculated using the experimental results of the pilot plant. Moreover, construction and running costs as function of biomass cost, methane price and plant operation cost were estimated to finally evaluate the payback period.


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