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Biodiesel Quality Emissions and By Products Part 2

Tham khảo tài liệu 'biodiesel quality emissions and by products part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 14 Biodiesel - Quality Emissions and By-Products Ester2 C8 0 C10 0 C12 0 C14 0 C16 0 C18 0 C18 1 C18 2 C18 3 C20 0 C20 1 Others Obs. ALME - - - 0.6 6.9 3 75.2 12.4 1.2 0.4 - 0.3 - RME - - - - 3.8 1.9 63.9 19 9.7 0.6 - 1.1 - REE - - - - 4.9 1.6 33.0 20.4 7.9 - - 22.2 22.2 C22 1 CME - - - - 4.2 2 57.4 21.3 11.2 1.2 2.1 0.60 - SME - - - - 9.4 4.1 22 55.3 8.9 - - 0.3 - SEE - - - - 10.8 3 26.5 47.3 9 - - 3.40 - SFME - - - - 4.2 3.3 63.6 27.6 0.2 - - 1.1 - PME - - 0.2 0.5 43.4 4.6 41.9 8.6 0.3 0.3 - 0.2 - COME - - - - 12.1 1.8 27.2 56.2 1.3 0.4 - 1 - AME - - - - 11.6 4.4 49.6 33.7 0.7 - - - - OEE - - - - 11.6 3.1 74.9 7.8 0.6 - - 2 - TME - - 0.2 2.9 24.3 22.8 40.2 3.3 0.7 0.2 0.6 4.8 - FOME - - 0.2 7.7 18.8 3.9 15 4.6 0.3 0.2 1.4 47.9 25.1 - C20 5 JME - - - - 12.7 5.5 39.1 41.6 0.2 0.2 - 0.7 - JME - - - - 12.5 30.9 34.4 20.4 - - - 1.8 - WCOME - - 0.1 0.1 11.8 4.4 25.3 49.5 7.1 0.3 - 1.4 - WCOEE - - 2.0 - 15.7 3.1 29.6 41.5 1.0 - - 7.1 - SAFME - - - - 7.3 1.9 13.6 77.2 - - - - - CCME 6.3 6 49.2 18.5 9.1 2.7 6.5 1.7 - - - - - CCEE 7.5 6 53.3 17.1 7.3 1.9 5.5 1.4 - - - - - YMME - - - - 2.6 1.2 20.6 20.6 13.3 0.9 10.7 30.1 25.6 - C20 1 YGME - - 0.1 0.5 14.3 8 35.6 35 4 0.3 - 2.2 - Table 11. Fatty acid composition of different biodiesels methyl and ethyl esters m m a linear-chain hydrocarbon hexadecane C 6H34 also called n-cetane very sensitive to ignition having a cetane number of 100 and a strongly branched-chain hydrocarbon 2 2 4 4 6 8 8-heptamethylnonane HMN also called isocetane having the same chemical formula C16H34 with high resistance to ignition having a cetane number of 15. The cetane number is the percentage by volume of normal cetane in a mixture of normal cetane and HMN which has the same ignition characteristics as the test fuel. Thus the cetane number is given by the formula CN n-cetane v v 0.15 HMN v v . Determination of the cetane number on the monocylinder engine specially designed for this purpose EN ISO 5165 ASTM D613 is an expensive and lengthy .