成果報告書詳細
管理番号20120000000302
タイトル*平成23年度中間年報 新エネルギー技術研究開発 バイオマスエネルギー等高効率転換技術開発(先導技術開発) バイオ燃料の品質規格及び計量標準に関する研究開発
公開日2012/12/26
報告書年度2011-2011
委託先名独立行政法人産業技術総合研究所
プロジェクト番号P07015
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:[記載項目]
1. 研究開発の内容及び成果等
本研究開発では、2015~2020年頃に実用化されるであろうエタノールおよびバイオディーゼル燃料に対し、品質規格と計量標準を策定し、JIS規格および国際規格策定に貢献することを目的とする。
英文要約Title: R&D for Quality and Measurement Standards of Bio-fuels (FY2008-FY2012) FY2011 Annual Report
 The final aim of this project is to contribute to the domestic and international standardization of bio-fuels by establishing methods to evaluate the quality of bio-ethanol and biodiesel (BDF), by establishing methods to measure bio-ethanol, and through the monitoring of international standardization trends.
 New JIS (Japanese Industrial standard) for quality of bio-ethanol was published in November 2011. In this JIS, the evaluation method for pH which was developed in this project was introduced (the standard value of pH was not fixed). To check the adaptability of this JIS into the current bio-ethanol, we evaluated five kinds of bio-ethanol from domestic plants. For almost items, all bio-ethanol adapted to New JIS standard. On the other hand, values of pH were varied. The method to stabilize the pH value will be needed. As one of the methods to stabilize the pH value, we tested the admixture (DCI-11). Although DCI-11 was effective into pHe and pH for almost ethanol, the effect into pH was smaller than the effect into pHe. And for some kinds of bio-ethanol the effect for long term stability was not enough.
 To get a base data of discussion for ISO, we check the evaluation methods of “Electrical conductivity” and “Acidity as acetic acid” which proposed by Brazil. For “Electrical conductivity” the method is almost same as new JIS except temperature. For “Acidity as acetic acid”, although the method is introduced different evaluation method from JIS, the evaluation value gave good agreement with the value of JIS method.
 As R&D for Quality and Measurement Standards of biodiesel-fuel, the ester content analysis was carried out by use of the test method of EN 14103. Two types of biodiesel fuel (BDF) from Indonesian crude jatropha oils were used, and the contents of ester (FAME) and linolenic acid methyl ester were measured by use of gas chromatographic method according to EN 14103. The test results by the two gas chromatographic apparatuses were examined for the tests for comparison. The results revealed that the ester content was within the limit of standards of JIS and others. However, there are several oils, which contain the smaller carbon chain of fatty acid components such as coconut oil. In order to cover the correct result of ester content, the range of shorter carbon number was extended to C8 from C14, and the more precise results could be obtained for ester content.
 The presence of tumor-promoter phorbol esters (PEs) from jatropha was carefully checked by HPLC/UV analysis in the process of BDF production from the two species of crude jatropha oil imported from Indonesia. The amounts of PEs remained in crude feedstock oil, after etherification fuel (jatropha methyl ester) and wastes from the processes were measured by a few test methods. From the results of measuring PEs by
HPLC, about 35 % of phorbol ester was removed by neutralizing process from crude jatropha oil. From the results by electrophoresis, the level of PKC activity of jatropha methyl ester was very low as much as blank data.
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