《机电工程》杂志,月刊( 详细... )
中国标准连续出版物号: ISSN 1001-4551 CN 33-1088/TH
主办单位:浙江省机电集团有限公司
浙江大学
主编:陈 晓
副 主 编:唐任仲、罗向阳(执行主编)
总 经 理:罗向阳
出 版:浙江《机电工程》杂志社有限公司
地 址:杭州市上城区延安路95号浙江省机电集团大楼二楼211、212室
电话Tel:+86-571-87041360、87239525
E-mail:meem_contribute@163.com
国外发行:中国国际图书贸易总公司
订阅:全国各地邮局 国外代号:M3135
国内发行:浙江省报刊发行局
邮发代号:32-68
广告发布登记证:杭上市管广发G-001号
在线杂志 |
当前位置: 机电工程 >>在线杂志 |
NO2和O3氧化柴油机微粒的对比试验研究*
作者:温佐华,杨国华,刘大海 日期:2009-06-24/span> 浏览:3299 查看PDF文档
NO2和O3氧化柴油机微粒的对比试验研究*
温佐华,杨国华,刘大海
(宁波大学 海运学院,浙江 宁波 315211)
摘要:柴油机微粒物质(PM)后处理最有效的措施是微粒捕集器(DPF)技术,而DPF技术的关键点在于其再生。为了降低DPF的再生温度,首先采用玻璃纤维无胶滤筒捕集PM,然后在管式反应器内加入氧化性气体氧化PM,并通过试验对比研究了NO2和O3对PM的氧化效果。研究结果表明,NO2氧化PM的起燃温度为250 ℃,而O3在155 ℃时开始明显氧化PM,适宜温度为200 ℃~240 ℃;提高了臭氧或NO2气体浓度,明显加快了氧化速度;O3可以在低温下快速氧化PM,且不需任何催化剂。
关键词:柴油机微粒物质;臭氧;NO2;氧化;微粒捕集器
中图分类号:TK421+.5文献标识码:A文章编号:1001-4551(2009)06-0104-03
Experiment on contrast O3 to NO2 oxidation of diesel particulate matter
WEN Zuohua, YANG Guohua, LIU Dahai
(College of Maritime, Ningbo University, Ningbo 315211, China)
Abstract: The most effective measure of diesel particulate matter(PM) postprocessing is the diesel particulate filter(DPF) technology, and the key of DPF lies in its regeneration. In order to reduce the regeneration temperature of DPF, an experimental study was carried out by two steps. The PM from diesel engine was captured by glass fiber filter firstly. Then oxidation of PM was carried by oxidizing gas in a tube furnace. The experimental study on contrast ozone to NO2 oxidation of PM was done. The results indicate that the oxidation reaction between NO2 and PM start combustion at 250 ℃, but ozone and PM start obviously at 155 ℃, the optimal oxidation reaction temperature window is between 200 ℃ and 240 ℃. It gets the higher ozone or NO2 concentration and the faster oxidation reaction. The ozone can oxide PM fast under no any catalyst at lowtemperature.
Key words: diesel particulate matter(DPM); ozone; NO2; oxidation; diesel particulate filter(DPF)
参考文献(References):
[1]田春芝.柴油汽车微粒排放控制措施[J].北京汽车,2000(2):20-23.
[2]THOMAS S, MARTIN A R, RAYBONE D, et al. Non Thermal Plasma Aftertreatment of ParticulatesTheoretical Limits and Impact on Reactor Design[C]. SAE Paper,2000.
[3]WANG X, GAO X, RONG H. Experimental Investigation on Electrostatic DPF[C]. SAE Paper,2001.
[4]杨德胜,高希彦,王宪成,等.柴油机微粒陶瓷过滤器电加热再生时机的研究[J].内燃机工程,2003,24(4):42-49.
[5]韩炜,徐鹏,龚依民,等.柴油机尾气净化装置的微波加热催化再生技术[J].吉林大学学报:理学版,2004,42(2):311-315.
[6]许益存,浦甲辰,许钰龙,等.柴油机尾气净化装置中利用微波加热再生技术的研究[J].农机化研究,2007(1):215-217.
[7]许晓光,高希彦.红外加热在柴油机排气颗粒过滤器再生中的应用[J].红外技术,2001,23(4):29-31.
[8]JUNKO O U, OBUCHI A, WANG Shudong, et al. Catalytic performance of Pt/MOx loaded over SiCDPF for soot oxidation[J]. Applied Catalysis B: Environmental,2003,43(2):117-129.
[9]CRAENENBROECK J V, ANDREEVA D, TABAKOVA T, et al. Spectroscopic analysis of AuVBased catalysts and their activity in the catalytic removal of diesel soot particulates[J]. Journal of Catalysis,2002,209(2):515-527.
[10]CALDEIRA I, LEOCADIO L, BRAUN S, et al. Diesel soot combustion on Mo/Al2O3 and V/ Al2O3 catalyst s: investigation of the active catalytic species[J]. Journal of Catalysis,2004,223(1):114-121.
[11]HARRISON P G, BALL I K, DANIELL W, et al. Cobalt catalysts for the oxidation of diesel soot particulate[J]. Chemical Engineering Journal,2003,95(1-3):47-55.
[12]HONGMEI A, CAITLIN K, MCGINN P J. Combinatorial synthesis and characterization of alkali metal doped oxides for diesel soot combustion[J]. Catalysis Today,2004,98(3):423-429.
[13]TRIANA A P, JOHNSON J H, YANG S L. An Experimental and Numerical Study of the Performance Characteristics of the Diesel Oxidation Catalyst in a Continuously Regenerating Particulate Filter[C]. SAE Paper,2003.
[14]HAWKER P N. Experience with a New Particulate Trap Technology in Europe[C]. SAE Paper,1997.
友情链接