A Study of Utilization of Coconut Oil for Diesel Fuel

椰子油作为柴油的利用研究

• 批准号: 18560207
• 负责人: KINOSHITA Eiji
• 金额: $ 2.44万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560207/
• 关键词: Thermal Engineering; Renewable Energy; Biomass; Reduction of Global Warming Gas; Diesel Fuel

In order to use coconut oil as a diesel fuel, the manufacturing process, the fuel properties and the diesel combustion characteristics of coconut oil' methyl ester (CME)are investigated. CME is made by alkyl catalyst transesterification with water washing. From the experimental analysis, it is shown that the reaction conditions of transesterification from coconut oil to CME to satisfy the EU standard of bio-diesel are that the ratio of methanol amount to its stoichiometric value is 1.8 to 2.0, the KOH amount is 1% mass to coconut oil, the reaction temperature is 60℃, and the reaction time is one hour. CME has low kinematic viscosity and high volatility compared to RME and PME. The pour point of CME is -5.0℃ and it is not reduced by adding the pour point depressant.The combustion characteristics and exhaust emissions of CME are investigated using a single cylinder direct injection diesel engine, and are compared to PME, RME and JIS No.2 gas oil. The injection timing and ignition delay o … More f CME are almost the same as those of JIS No.2 gas oil. The thermal efficiency of CME is almost the same as the other test fuels. The exhaust emissions (HC, CO, NOx and Smoke) of CME are low compared to the other test fuels due to the higher oxygen content of CME. Especially, at 100% load condition, about 50% reduction in smoke emission is found in CME compare to that of JIS No.2 gas oil. From the practical viewpoint, a blend of 20% CME with 80% JIS No.2 gas oil (CME-B20) is tested. The pour point of CME-B20 is -12.5℃, is same as that of JIS No.2 gas oil. The CO, HC and Smoke emissions of CME-B20 are lower than those of JIS No.2 gas oil.The exhaust emissions and carbon deposit in combustion chamber of diesel engine continuously operated for 50 hours by fuelling CME, CME-B20, RME and JIS No.2 gas oil are investigated. The carbon deposit in combustion chamber after 50 hour run for CME is about 60% higher than that for JIS No.2 gas oil. The carbon deposit of CME-B20 after 50 hour run is slightly lower than that of CME. The acid value of lubricant engine oil after 50 hour run for CME is almost the same as that for the gas oil. It is considered that the carbon deposit of CME must be investigated in detail with the carbon deposit formation mechanism in combustion chamber.From the experimental results, it is concluded that CME is a good alternative fuel as diesel fuel compared PME and RME. Less

为了将椰子油用作柴油，研究了椰子油甲酯（CME）的制备工艺、燃料性能和柴油燃烧特性。CME是由烷基催化酯交换和水洗制备的。实验分析表明，满足欧盟生物柴油标准的椰子油转酯化制CME的反应条件为：甲醇用量与其化学计量值之比为1.8 ~ 2.0，KOH用量为椰子油质量的1%，反应温度为60℃，反应时间为1小时。与RME和PME相比，CME具有低运动粘度和高挥发性。CME的倾点为-5.0℃，添加降凝剂不能降低CME的倾点。在单缸直喷柴油机上研究了CME的燃烧特性和废气排放，并与PME、RME和JIS 2号汽油进行了比较。更多CME的喷射时间和点火延迟与JIS 2号汽油几乎相同。CME的热效率与其他试验燃料基本相同。CME的废气排放（HC、CO、NOx和Smoke）比其他测试燃料低，这是由于CME的氧含量较高。特别是，在100%负荷工况下，与JIS 2号汽油相比，CME的烟雾排放量减少了约50%。从实际的角度出发，对20% CME与80% JIS 2号汽油（CME- b20）的混合物进行了测试。CME-B20的倾点为-12.5℃，与JIS 2号汽油的倾点相同。CME-B20的CO、HC和Smoke排放量低于JIS 2号汽油。研究了以CME、CME- b20、RME和JIS 2号汽油为燃料连续运行50小时的柴油机的尾气排放和燃烧室积碳情况。CME燃烧室运行50小时后的积碳量比JIS 2号汽油高出约60%。运行50小时后CME- b20的积碳量略低于CME。内燃机润滑油运行50小时后的酸值与普通汽油的酸值基本一致。认为应结合燃烧室内积碳的形成机理，对CME的积碳进行详细的研究。实验结果表明，相对于PME和RME， CME是一种较好的柴油替代燃料。少

项目成果

Combustion Characteristics of a DI Diesel Engine with Palm Kernel Oil Biodiesel and Its Blend(B20)

棕榈仁油生物柴油及其调配物（B20）直喷式柴油机的燃烧特性

• 发表时间: 2007
• 作者: T.Myo;E.Kinoshita;H.Tsuru;K.Hamasaki
• 通讯作者: K.Hamasaki

Diesel Combustion Characteristics of Coconut Oil and Palm Oil Biodiesels

椰子油和棕榈油生物柴油的柴油燃烧特性

• 发表时间: 2006
• 作者: E.Kinoshita;T.Myo;K.Hamasaki;H.Tajima;Zhang RuKun
• 通讯作者: Zhang RuKun

Combustion Characteristics of a DI Diesel Engine with Palm Kernel Oil Biodiesel and Its Blend (B20)

棕榈仁油生物柴油及其混合物 (B20) 直喷式柴油机的燃烧特性

• 发表时间: 2007
• 作者: Thet;MYO;Eiji;KINOSHITA;Hidenori;TSURU;Kazunori;HAMASAKI
• 通讯作者: HAMASAKI

Combustion Characteristics of Diesel Engine with Coconut Oil Ethyl Ester

椰子油乙酯柴油机的燃烧特性

• 发表时间: 2007
• 作者: E.Kinoshita;T.Myo;K.Hamasaki;S.Nishi
• 通讯作者: S.Nishi