Study on emission characteristics of urea-SCR aftertreatment system of diesel engine

Lei Jiang; Yun Shan Ge; Pu Li; Zhi Hua Liu

Study on emission characteristics of urea-SCR aftertreatment system of diesel engine

Lei Jiang^*, Yun Shan Ge, Pu Li, Zhi Hua Liu

^*此作品的通讯作者

机械与车辆学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

12 引用（Scopus）

摘要

The performance of urea-SCR aftertreatment system is affected by many factors, such as spray type, position of injection, air-blast system and characteristics of catalyst, etc. The study of urea-SCR system performance made on engine test bench reveals that spray type and direction of injection have a great influence on urea solution atomization and spatial distribution; distance between the spray nozzle and the catalyst the greater, the conversion efficiency the better; for the urea-SCR system used here, air-blast pressure of 0.2 MPa is suitable; NO_x conversion efficiency increases with catalyst temperature rising; the catalyst temperature the lower, its storing ammonia capacity the greater; and the SCR may affect ratio of NO and NO₂ and concentration of HC and CO.

源语言	英语
页（从-至）	30-35
页数	6
期刊	Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering
卷	31
期	5
出版状态	已出版 - 10月 2010

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title = "Study on emission characteristics of urea-SCR aftertreatment system of diesel engine",

abstract = "The performance of urea-SCR aftertreatment system is affected by many factors, such as spray type, position of injection, air-blast system and characteristics of catalyst, etc. The study of urea-SCR system performance made on engine test bench reveals that spray type and direction of injection have a great influence on urea solution atomization and spatial distribution; distance between the spray nozzle and the catalyst the greater, the conversion efficiency the better; for the urea-SCR system used here, air-blast pressure of 0.2 MPa is suitable; NOx conversion efficiency increases with catalyst temperature rising; the catalyst temperature the lower, its storing ammonia capacity the greater; and the SCR may affect ratio of NO and NO2 and concentration of HC and CO.",

keywords = "Conversion efficiency, IC engine, NO, SCR, Urea",

author = "Lei Jiang and Ge, {Yun Shan} and Pu Li and Liu, {Zhi Hua}",

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T1 - Study on emission characteristics of urea-SCR aftertreatment system of diesel engine

AU - Jiang, Lei

AU - Ge, Yun Shan

AU - Li, Pu

AU - Liu, Zhi Hua

PY - 2010/10

Y1 - 2010/10

N2 - The performance of urea-SCR aftertreatment system is affected by many factors, such as spray type, position of injection, air-blast system and characteristics of catalyst, etc. The study of urea-SCR system performance made on engine test bench reveals that spray type and direction of injection have a great influence on urea solution atomization and spatial distribution; distance between the spray nozzle and the catalyst the greater, the conversion efficiency the better; for the urea-SCR system used here, air-blast pressure of 0.2 MPa is suitable; NOx conversion efficiency increases with catalyst temperature rising; the catalyst temperature the lower, its storing ammonia capacity the greater; and the SCR may affect ratio of NO and NO2 and concentration of HC and CO.

AB - The performance of urea-SCR aftertreatment system is affected by many factors, such as spray type, position of injection, air-blast system and characteristics of catalyst, etc. The study of urea-SCR system performance made on engine test bench reveals that spray type and direction of injection have a great influence on urea solution atomization and spatial distribution; distance between the spray nozzle and the catalyst the greater, the conversion efficiency the better; for the urea-SCR system used here, air-blast pressure of 0.2 MPa is suitable; NOx conversion efficiency increases with catalyst temperature rising; the catalyst temperature the lower, its storing ammonia capacity the greater; and the SCR may affect ratio of NO and NO2 and concentration of HC and CO.

KW - Conversion efficiency

KW - IC engine

KW - NO

KW - SCR

KW - Urea

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SN - 1000-0925

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JO - Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering

JF - Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering

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ER -

Study on emission characteristics of urea-SCR aftertreatment system of diesel engine

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