满足重型柴油机超低排放法规的后处理技术现状与展望

王志坚; 王晓华; 郭圣刚; 李建文; 王意宝; 孔梦茜; 帅石金

doi:10.13205/j.hjgc.202009026

满足重型柴油机超低排放法规的后处理技术现状与展望

doi: 10.13205/j.hjgc.202009026

1. 潍柴动力股份有限公司, 山东潍坊 261000;
2. 清华大学, 北京 100084

基金项目:

国家重点研发计划（2017YFC0211301）。

详细信息

作者简介:
王志坚(1971-),男,博士,主要研究方向为内燃机研发。wangzhij@weichai.com

通讯作者:
王晓华(1988-),女,学士,主要研究方向为发动机排放控制。wangxiaoh@weichai.com

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- 被引次数: 0
出版历程
- 收稿日期: 2019-10-16

REVIEW AND OUTLOOK OF AFTERTREATMENT TECHNOLOGIES TO SATISFY ULTRA-LOW EMISSION REGULATIONS FOR HEAVY-DUTY DIESEL ENGINES

1. Weichai Power Co., Ltd, Weifang 261000, China;
2. Tsinghua University, Beijing 100084, China

摘要

摘要: 柴油机排放污染物控制是全球应对大气环境恶化问题的重要解决方案之一。美国加利福尼亚州在2019年率先发布了针对超低排放要求的白皮书，建议将重型柴油机的NO_x排放继续降低90%，即最低达到0.027 g/（kW·h）。针对未来超低排放法规的技术要求，全球相关机构开展了大量的研发和试验工作，有效推动了排放控制技术的升级。从发动机后处理零部件的角度，总结了国内外相关文献及研究成果，提出发动机和后处理技术需联动升级，在加强发动机热管理的同时，降低原机NO_x排放。重点介绍了潜在的后处理技术解决方案，如NO_x吸附脱附技术和紧耦合SCR技术等控制低温NO_x排放的关键技术，灰分管理和PN控制相关的DPF控制技术，以及电加热催化器和燃烧器等可能应用于后处理系统的热管理技术，并对相关技术的优劣势进行了分析。
- 重型柴油机 /
- 排放法规 /
- 后处理 /
- 颗粒物 /
- NO_x
Abstract: Emission control of heavy-duty (HD) diesel engines is one of the focuses to reduce the air pollution. California Air Resources Board (CARB) had taken the action on issuing a white paper to further limit the emission of heavy-duty vehicles, which especially suggested reducing the NO_x emission to maximum 90% based on EPA2010 legislation (0.027 g/(kW·h)). To satisfy the ultra-low emission requirements, global related research institutes carried on a lot of tasks to explore the potential pathway for the future heavy duty after-treatment solutions. To some extent, these actions purged the upgradation of emission legislation around the world, including Europe and China. This paper reviewed the current status of HD diesel engine emission control and available approaches for future emission control obtained from published materials and author's study from the point of aftertreatment component. Thermal management and emission control system should be considered together during the engine design. The paper compared different solutions such as passive NO_x absorber(PNA)/close-coupled SCR(cc-SCR)/SCR on Filter(SCRF) in NO_x control, ash management and PN emission in DPF control, electrical heated catalyst (EHC)/diesel burner in aftertreatment temperature control.
- heavy-duty diesel engine /
- emission legislation /
- aftertreatment system /
- particulate matter /
- NO_x

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参考文献(37)

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