A Review of Research on Emission Characteristics of Ethanol-Diesel Blends in Diesel Engines

Meng Chen


This paper reviews research on the emission characteristics of blended ethanol and other fuels. With the rapid development of modern industry, the extensive use of fuel engines has led to increasingly prominent contradictions between energy and the environment. In order to respond to sustainable development and reduce engine emissions in various countries, many scientific research institutions have conducted research on mixed fuels. The research of blended fuel mainly focuses on its sustainability, economy and environmental protection. Compared with gasoline engines, diesel engines have a lower fuel consumption rate and are widely used in heavy industry. But its fuel comes from refining crude oil, which is non-renewable and has poor cleanliness. As an emerging renewable fuel, ethanol is a fuel with good development prospects due to its good cleanliness, wide range of sources and renewable. If ethanol can be used as an alternative fuel for traditional internal combustion engines and diesel engines, it can save some traditional fuels and improve the emission problems of internal combustion engines to a certain extent. This paper introduces the research status of ethanol blended fuels, and the emission characteristics of engines (NOx, HC and CO) under different ethanol ratios and different operating conditions. It can be seen that with the increase of ethanol blending ratio, NOx content will increase, while CO and HC emissions will decrease.

Citation: Chen, M. (2023). A Review of Research on Emission Characteristics of Ethanol-Diesel Blends in Diesel Engines. Trends in Renewable Energy, 9(2), 107-119. doi:http://dx.doi.org/10.17737/tre.2023.9.2.00155


Ethanol; Diesel engine; Emission; Renewable

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Cheng Y., & Jiang J. (2019). Study on the combustion characteristics of ethanol fuel and its application. Petrochemical Industry Application, 38(12):1-3.

Kang, R. (2018). Experimental Study on Combustion Characteristics of Ethanol/Gasoline in a Dual-fuel Dual-Direct injection Engine. Tianjin University, Master thesis. doi: https://doi.org/10.27356/d.cnki.gtjdu.2018.000589

Zhai, X. (2018). Visualization Test and Numerical Simulation of Low Temperature Premixed Combustion of Ethanol/Diesel Dual Fuel. Huazhong University of Science and Technology, Master thesis. doi: https://doi.org/10.27157/d.cnki.ghzku.2018.000016

Zhao, Q. (2016). An Experimental Study on the Gas and Soot Formation in Ethanol Pyrolysis. Chongqing University, Master thesis.

Zhang, Y. (2021). Study on Electrostatic Spray of Ethanol-Biodiesel Blend Fuel. Jiangsu University, Master thesis. doi: https://doi.org/10.27170/d.cnki.gjsuu.2021.000705

Zhou, T. (2012). An Experimental Study on Diesel Engine Combustion and Emissions with Butanol-Diesel Blend Fuels. Hunan University, Master thesis.

Luo, X. (2016). Study on Diesel Engine Performance and Emission Characteristics Fueled with Ethanol Blends. North China Electric Power University, Master thesis.

Sun, Z. (2017). Numerical and Experimental Study on the Combustion Process of Diesel/Ethanol Dual-Fuel Engine. Wuhan University of Technology, Master thesis.

Yao, C., Chen, X., Yang, J., Xu, Y., & Xia, Q. (2009). Investigations of Exhaust Emissions of Diesel/Ethanol Compound Combustion in a Turbocharged Inter-Cooled Diesel Engine. Transactions of CSICE, 27(4):314-320. doi: https://doi.org/10.16236/j.cnki.nrjxb.2009.04.006

Zhao, L. (2016). Investigation on dual fuel dual injection system engine fuelled with ethanol and gasoline for fuel economy and emissions. Tianjin University, Master Thesis.

Li, H., Huang, J., Huang, H., & Chen, G. (2012). Contrast Experimental Study of a Diesel Engine Burning Rapeseed Oil-based Bio-diesel and Ethanol-diesel in Various Proportions. Journal of Engineering for Thermal Energy and Power, 27(4), 498-503+521-522.

Wang, X., & Tian, G. (2013). Effect of ethanol-diesel hybrid fuel on emission characteristics of diesel engine. Journal of Chinese Agricultural Mechanization, 34(1), 95-97+106. doi: https://doi.org/10.3969/j.issn.2095-5553.2013.01.023

Britto, R. F., & Martins, C. A. (2015). Emission analysis of a Diesel Engine Operating in Diesel–Ethanol Dual-Fuel mode. Fuel, 148, 191-201. doi: https://doi.org/10.1016/j.fuel.2015.01.008

Zou, C. (2021). Study on Injection Coordinated Control of Ethanol/Diesel Dual Fuel Engine. Kunming University of Science and Technology, Master Thesis. doi: https://doi.org/10.27200/d.cnki.gkmlu.2021.000252.,2021

Morsy, M. H. (2015). Assessment of a direct injection diesel engine fumigated with ethanol/water mixtures. Energy Conversion and Management, 94, 406-414. doi: https://doi.org/10.1016/j.enconman.2015.01.086

Gnanamoorthi, V., & Devaradjane, G. (2015). Effect of compression ratio on the performance, combustion and emission of DI diesel engine fueled with ethanol – Diesel blend. Journal of the Energy Institute, 88(1), 19-26. doi: https://doi.org/10.1016/j.joei.2014.06.001

DOI: http://dx.doi.org/10.17737/tre.2023.9.2.00155


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