Experimental Study on Characteristics of NOx Reduction with a Passive LNT-SCR System in a Passenger Diesel Engine

被引：0
|
作者：
Park, Seung Won [1 ]
Park, Gi Young [1 ]
Lee, Seang Wock [2 ]
机构：
[1] Kookmin Univ, Grad Sch Automot Engn, Seoul, South Korea
[2] Kookmin Univ, Dept Automot Engn, Seoul, South Korea
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2018年 / 42卷 / 06期
关键词：
LNT(Lean NOx Trap); SCR(Selective Catalytic Reduction); NOx; NH3; Slip; Diesel Engine;
D O I：
10.3795/KSME-B.2018.42.6.421
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A De-NOx system is introduced essentially to satisfy the emissions standard of EURO-6 and Post-EURO-6 because the diesel engine has the drawback of emitting nitrogen oxides. An LNT system uses only fuel in the regeneration, but has drawbacks of both NOx and NH3 slip. The NOx reduction efficiency of the Urea-SCR system is close to 100% theoretically when the catalyst temperature is sufficiently high. Continuously supplying a NH3 as a reducing agent is necessary. The purpose of this study is to maximize the performance of a passive LNT-SCR system by enhancing the reduction of NOx in the system and load, and to suggest the basic data for establishing a strategy for controlling the passive LNT-SCR system to satisfy the exhaust gas regulations of EURO-6 and Post-EURO-6.
引用
收藏
页码：421 / 428
页数：8
相关论文
共 50 条
  • [31] De-NOx characteristics of a combined system of LNT and SCR according to space velocity
    Department of Mechanical Engineering, Graduate School of Chonnam National University, Gwangju, 500-757, Korea, Republic of
    不详
    不详
    SAE Techni. Paper.,
  • [32] Experimental Study on Reduction of NOx Emissions of TBD234 Diesel Engine with Miller-System
    Xu Hongjun
    Chang Hanbao
    Shao Limin
    PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON TEST AUTOMATION & INSTRUMENTATION, VOL. 3, 2008, : 1445 - 1448
  • [33] Experimental investigation of the characteristics of an NOx reduction system for a dimethyl ether engine
    Lee, SW
    Satio, Y
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 2005, 219 (D1) : 89 - 96
  • [34] Study on steady and transient characteristics of urea-SCR system for diesel engine
    Jiang, Lei
    Ge, Yun-Shan
    Ding, Yan
    Liu, Zhi-Hua
    Tan, Jian-Wei
    You, Ke-Wei
    Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering, 2010, 31 (06): : 38 - 42
  • [35] An Experimental Study for NOx - Emission Reduction with Urea-SCR Technology in Vehicular Diesel Engines
    Wang, Qian
    Zhou, Mingxing
    Wang, Baoyi
    FRONTIERS OF GREEN BUILDING, MATERIALS AND CIVIL ENGINEERING, PTS 1-8, 2011, 71-78 : 2089 - 2093
  • [36] Control of NOx emissions from diesel engine by selective catalytic reduction (SCR) with urea
    Baik, JH
    Yim, SD
    Nam, IS
    Mok, YS
    Lee, JH
    Cho, BK
    Oh, SH
    TOPICS IN CATALYSIS, 2004, 30-1 (1-4) : 37 - 41
  • [37] Control of NOx emissions from diesel engine by selective catalytic reduction (SCR) with urea
    Joon Hyun Baik
    Sung Dae Yim
    In-Sik Nam
    Young Sun Mok
    Jong-Hwan Lee
    Byong K. Cho
    Se H. Oh
    Topics in Catalysis, 2004, 30-31 : 37 - 41
  • [38] Evaluation of amines for the selective catalytic reduction (SCR) of NOx from diesel engine exhaust
    Kelly, James F.
    Stanciulescu, Maria
    Charland, Jean-Pierre
    FUEL, 2006, 85 (12-13) : 1772 - 1780
  • [39] EXPERIMENTAL STUDY ON THE EMISSION CHARACTERISTICS OF HEAVY-DUTY DIESEL ENGINE WITH COMBINATION SYSTEM OF DOC/DPF/SCR
    Chen, Xu
    Bai, Shuzhan
    Li, Guoxiang
    Wang, Guihua
    FRESENIUS ENVIRONMENTAL BULLETIN, 2019, 28 (06): : 4591 - 4597
  • [40] A System of Selective Non Catalytic Reduction of NOx for Diesel Engine
    Xu, Boyan
    Tian, Haiying
    Yang, Jie
    Sun, Dezhi
    Cai, Shaoli
    ADVANCED MANUFACTURING SYSTEMS, PTS 1-3, 2011, 201-203 : 643 - +
12345