成果報告書詳細
管理番号20140000000232
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(次世代技術開発) バイオマスから高品位液体燃料を製造する水蒸気-水添ハイブリッドガス化液体燃料製造プロセスの研究開発
公開日2014/6/24
報告書年度2013 - 2013
委託先名国立大学法人群馬大学 株式会社キンセイ産業
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: Development of Steam/Hydrogenation Hybrid Process for High Grade Oil Production from Biomass (FY2012-FY2015) FY2013 Annual Report

To establish an economically efficient plant, a small scale process for biomass, which produces high grade oil and electricity matching with local demand, is proposed as a steam - hydrogenation hybrid gasification process. To demonstrate the hybrid process the following tasks were carried out.
(1)-4 Elucidation of an appropriate operation condition for liquid fuel production from biomass by 2t/d total system demonstration plant
2t/d total system demonstration plant was constructed by integration of the three compartment internal circulating fluidized beds (3CICFB) and the hydrogenation reactor which were established last year. Plant operation tests of the total system have been carried out from each unit process to total system operations. The biomass pyrorlzer successfully pyrolize wood biomass up to 80kg/hr. Particle circulation operation between pyrolizer and combustor was also confirmed up to 40kg/hr. However, unexpected temperature rising at the downstream of combustor was observed in higher biomass feed rate. Therefore, the total system operation was carried out in low biomass feed rate of 20kg/hr. In this condition, due to the low feed rate of biomass, the reactor temperatures were not achieved to the design value, but stable operation in all streams in the system was confirmed. Hydrogenation of tar produced from the pyrolizer was also carried out with hydrogen rich gas to confirm liquid fuel production.
(2)-1 Elucidation of nitrogen behavior during pyrolysis
For prediction of nitrogen behavior in the process, nitrogen compounds produced during rapid pyrolysis and steam reforming of pig manure compost were identified and quantified. Around 50% of nitrogen would be remained in char in pryrolysis condition and 30% in char in stream gasification condition. As compared with the results in low temperature rising rate, higher nitrogen conversion was observed in rapid pyrolysis with steam reforming.
(2)-2 Observations and control of catalyst poisoning
Poisoning of Ni/Al2O3 catalyst by H2S was evaluated. Steam gasification of wood biomass with Ni/Al2O3 was found to be inconsiderably affected by contamination of H2S up to 1500ppm. To control coking on the Ni-based catalyst, Ni-Cu/ZrO2 catalyst was studied. A Ni-Cu/ZrO2 catalyst produced by liquid phase synthesis was evaluated by thermo gravimetry of methane dry reforming reaction. Addition of Cu in Ni/ ZrO2 reduced coke formation to enhance the production of CO and hydrogen.
(3) Evaluation of producing oil and definition of appropriate operation condition
Liquid fuel produced by hydrogenation of tar was evaluated by measuring the evaporation lifetime. Maximum evaporation rate point of the produced liquid fuel was lower than that of kerosene. Flame of the produced liquid fuel had small luminous part as compared to kerosene. Therefore, the produced liquid fuel could reduce soot formation in combustors.
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