成果報告書詳細
管理番号20130000000620
タイトル*平成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) 軽油代替燃料としてのBTL製造技術開発 ーバイオマスからのバイオLPG(軽油代替燃料)合成の研究開発ー
公開日2014/5/9
報告書年度2012 - 2012
委託先名公立大学法人北九州市立大学 日本ガス合成株式会社
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JGS challenged three subjects during JFY2012. The 1st one is the establishment of an industrially-feasible catalyst under cooperation with KKU and JGC. The new way of catalyst preparation tried for the 1st time is not sufficiently active, probably because of its small Na ion. A new type of catalyst and reaction system was developed, which gave high carbon efficiency from feed (80-100% in carbon base) by using a Cu-Zn-Al based water-tolerant methanol synthesis catalyst and CO2-containing syngas. The selectivity of C4 paraffin especially that of i-butane was extremely high, while keeping that of dry gas (C1+C2) at lower than 2%. The reaction kinetics of LPG synthesis were analyzed by a simulation method to get the sufficient simulation level. Based on the simulation results, two types of reaction were designed and manufactured. Both of the volumes of catalyst bed were 200ml. (JGS) AIST is responsible for developing gasification with high conversion rate with less cost, and also responsible for evaluating mass-energy balance of the system. An oil palm residue, such as empty fruit bunch (EFB), is one of the largest promising and abandoned biomass. Thermal properties of the EFB were analyzed by using a specially designed thermo-balance as basic studies of gasification under various conditions. Solid residues obtained in temperature range of from 400 to 900oC were analyzed by using a Fourier transfer infrared (FTIR) analyzer. CaCO3 was contained in the residue obtained under He+H2O atmosphere and K2CO3 under He+O2+H2O. Gasification properties, especially gasification rate, were strongly dependent on K, Ca and Si contents and on K/Si ratio. H2, CO, CO2 and CH4 are four main components of gas obtained from biomass. The energy conversion rate of the bio-LPG plant is improved when CH4 is reformed to H2 and CO (wet reforming). AIST found a special operation conditions under which the catalyst stably reformed 10% methane to about 5% for long time even the gas contained 100ppm of H2S. (AIST) KKU tried to establish a large scale of manufacturing method of industrial catalysts should be developed for a practical use. We tried to scale up the preparation method of a Cu-Zn-Al-Zr based methanol catalyst and a Pd-Cu/beta zeolite catalyst, which are the best catalysts in our conventional preparation condition. The catalysts were prepared in a large scale of a few hundred gram using improved methods suited for industry applications. The performance of the catalyst was evaluated under conventional conditions. The Cu-Zn-Al-Zr based catalysts prepared in a large scale show good performance for CO conversion and LPG synthesis. On the other hand, the Pd-Cu/beta zeolite catalyst prepared in a large scale exhibited a low selectivity into hydrocarbons such as LPG. The results of characterization suggest that the low catalytic activity of the Pd-Cu/beta zeolite catalyst is due to the presence of sodium ion and the small specific surface area. (KKU)
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