DOI: 10.1016/j.atmosenv.2014.11.046
Scopus记录号: 2-s2.0-84916623697
论文题名: Effects of fuels, engine load and exhaust after-treatment on diesel engine SVOC emissions and development of SVOC profiles for receptor modeling
作者: Huang L ; , Bohac S ; V ; , Chernyak S ; M ; , Batterman S ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 102 起始页码: 228
结束页码: 238
语种: 英语
英文关键词: Biodiesel
; Diesel particulate filter (DPF)
; Hopanes
; Nitro-PAHs (NPAHs)
; Polycyclic aromatic hydrocarbons (PAHs)
; Steranes
Scopus关键词: Air filters
; Aromatization
; Biodiesel
; Diesel engines
; Engines
; Fuel filters
; Fuels
; Loading
; Naphthalene
; Particulate emissions
; Petroleum industry
; Risk assessment
; Risk perception
; Toxicity
; Diesel particulate filters
; Hopanes
; Nitro-PAHs (NPAHs)
; Polycyclic aromatic hydrocarbons (PAHS)
; Steranes
; Polycyclic aromatic hydrocarbons
; 1 nitronaphthalene
; 1 nitropyrene
; 2 nitrofluorene
; 2 nitronaphthalene
; acenaphthene derivative
; alkene
; anthracene
; anthracene derivative
; aromatic compound
; benzo[a]pyrene
; benzo[b]fluoranthene
; benzo[k]fluoranthene
; benz[a]anthracene
; biodiesel
; chrysene
; dibenz[a,h]anthracene
; fluoranthene
; fuel
; hopanoid
; indeno[1,2,3 cd]pyrene
; naphthalene
; naphthalene derivative
; petroleum
; phenanthrene
; polycyclic aromatic hydrocarbon
; polycyclic aromatic hydrocarbon derivative
; pyrene
; semivolatile organic compound
; sulfur
; unclassified drug
; volatile organic compound
; biomarker
; carcinogen
; diesel engine
; emission inventory
; exhaust emission
; fuel
; PAH
; particulate matter
; risk assessment
; volatile organic compound
; Article
; carcinogenicity
; catalyst
; diesel engine
; environmental exposure
; exhaust gas
; filter
; molecular weight
; oxidation
; particulate matter
; risk assessment
; soybean
; Sweden
; Glycine max
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Diesel exhaust emissions contain numerous semivolatile organic compounds (SVOCs) for which emission information is limited, especially for idling conditions, new fuels and the new after-treatment systems. This study investigates exhaust emissions of particulate matter (PM), polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs (NPAHs), and sterane and hopane petroleum biomarkers from a heavy-duty (6.4L) diesel engine at various loads (idle, 600 and 900kPa BMEP), with three types of fuel (ultra-low sulfur diesel or ULSD, Swedish low aromatic diesel, and neat soybean biodiesel), and with and without a diesel oxidation catalyst (DOC) and diesel particulate filter (DPF). Swedish diesel and biodiesel reduced emissions of PM2.5, σ15PAHs, σ11NPAHs, σ5Hopanes and σ6Steranes, and biodiesel resulted in the larger reductions. However, idling emissions increased for benzo[k]fluoranthene (Swedish diesel), 5-nitroacenaphthene (biodiesel) and PM2.5 (biodiesel), a significant result given the attention to exposures from idling vehicles and the toxicity of high-molecular-weight PAHs and NPAHs. The DOC+DPF combination reduced PM2.5 and SVOC emissions during DPF loading (>99% reduction) and DPF regeneration (83-99%). The toxicity of diesel exhaust, in terms of the estimated carcinogenic risk, was greatly reduced using Swedish diesel, biodiesel fuels and the DOC+DPF. PAH profiles showed high abundances of three and four ring compounds as well as naphthalene; NPAH profiles were dominated by nitronaphthalenes, 1-nitropyrene and 9-nitroanthracene. Both the emission rate and the composition of diesel exhaust depended strongly on fuel type, engine load and after-treatment system. The emissions data and chemical profiles presented are relevant to the development of emission inventories and exposure and risk assessments. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82029
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States; Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Huang L,, Bohac S,V,et al. Effects of fuels, engine load and exhaust after-treatment on diesel engine SVOC emissions and development of SVOC profiles for receptor modeling[J]. Atmospheric Environment,2015-01-01,102