Research on the impact of CeO₂-based solid solution metal oxide on combustion performance of diesel engine and emissions

Abstract

This paper mainly studies on the performance of high-speed diesel engines and emission reduction when the engine uses heavy oil mixed with nanometer-sized additives Ce_0.9Cu_0.1O₂ and Ce_0.9Zr_0.1O₂. During the test, Indiset 620 combustion analyzer made by AVL, was used to make a real-time survey on the cylinder pressure, the fuel ignition moment, and establish a relation between the change trend of temperature in cylinder and the crank angle. For the engine burning heavy oil and heavy oil mixed with additives, combustion analysis software Indicom and Concerto were used to analyze its combustion process and emission conditions. Experimental investigation shows that nano-sized complex oxide can improve the performance of diesel engine fueled with heavy oil, and reduce the emission of pollutants like NO_x and CO, comparing it with the pure heavy oil. According to the consequences of this experiment, the additives improve the overall performance in the use of heavy oil.

Keywords

oil additives / nano-sized complex oxide / diesel engine / combustion analysis / emissions

References

[1] Aneggi E, Dolcetti G, Trovarelll A. Promotional effect of rare earths and transition metals in the combustion of diesel soot over CeO₂ and CeO₂-ZrO₂. Catalysis Today, 2006, 114(1): 40-47

[2] Atribak I, Such-Basane I, Bueno-Lopez A. Comparison of the catalytic activity of MO₂ (M=Ti.Zr.Ce) for soot oxidation under NO_x/O₂. Journal of Catalysis, 2007, 250: 75-84

[3] Chen Y, Ye D, Liang H, Fu M. Study on diesel soot oxidation over CeO₂-containing catalysts. Industeial Catalysis, 2008, 16(8): 65-69

[4] Escribano VS, López EF, Gallardo-Amores JM, del Martínez C H, Pistarino C, Pistarino C, Resini C, Busca G. A study of a ceria-zirconia-supported manganese oxde catalyst for combustion of diesel soot particles. Combustion and Flame, 2008, 153(1/2): 97-104

[5] Fang P, Lu J, Jia A, Luo M. Catalytic combustion of diesel soot on nanocrystalline CeO₂-based solid solutions. Acta Physico-Chimica Sinica, 2007, 23(8): 1275-1280

[6] He Q, Ye J. Characteristics of nanocatalyst and its application in environment-protection field. Environmental Technology, 2006, 24(4): 42-45

[7] Jiang Y, Wang Q. Preparing nano-CeO₂ technology and its application in catalyst. Materials Review, 2004, 18(II): 131-133

[8] Krishna K, Makkee M, Moulijn JA. Potential rare-earth modified CeO₂ catalysts for soot oxidation: Part III. Effect of dopant loading and calcinations temperature on catalytic activity with O₂ and NO+O₂. Applied Catalysis B: Environmental, 2007, 75(3/4): 210-220

[9] Nikolaou K. Emissions reduction of high and low polluting new technology vehicles equipped with a CeO₂ catalytic system. The Science of the Total Environment, 1999, 235(1–3): 71-76

[10] Setiabudi A, Chen J, Mul G. CeO₂ catalysed soot oxidation: The role of active oxygen to accelerate the oxidation conversion. Applied Catalysis B: Environmental, 2004, 51(1): 9-19

[11] Sun s, Chu W, Yang W. Ce-Al mixed oxide with high thermal stability for diesel soot combustion. Chinese Journal of Catalysis, 2009, 30(7): 685-689

[12] Wang X, Lu G, Guo Y, Qiao D, Zhang Z, Guo Y, Li C. Properties of CeO₂-ZrO₂ solid solution supported on Si-modified alumina and its application in Pd catalyst for methane combustion. Chinese Journal of Catalysis, 2008, 29(10): 1043-1050

[13] Yang M, Wu B, Han D, Han N. Influence of VOA fuel additive on engine performance and exhaust of diesel engine. Applied Energy Technology, 2007, 5-7

[14] Yao Chunde, Lu Y. An outlin of the R&D of diesel fuel additatives. Diesel Engine, 2003, 12-15

[15] Yuan S. The managing status quo and countermeasures of fuel oil cost about domestic shipping companies. Logistics Management, 2012, 8: 85-89

[16] Yuan S, Ju W, Zhang Y. Catalytic activity and preparation of nano-Ceria. Journal of the Chinese Rare Earth Society, 2003, 21: 84-86

[17] Zhang D, Di Z, Lian Y, Yu J. Study on the preparation of nanoparticulate CeO₂ and its function as additive to improve fuel consumption and emission of diesel engine. Petroleum Processing and Petrochemicals, 2011, 42(6): 66-72

[18] Zhao Y. The research of improvement of HARM emission HIGH speed diesel engine utilize heavy oil mixed with nanometer rare soil element oxides, 2012, Dalian: Dalian University of Technology

[19] Zhou L, Li L. Effect of nano-CeO₂ on the combustion performance of emulsified heavy oil. Chinese Rare Earths, 2007, 28(6): 92-94