气候变化领域集成服务门户(CCPortal): The effects of biodiesel blends on real-world carbonyl emissions from diesel trucks

CCPortal

DOI	10.1016/j.atmosenv.2020.117726
	The effects of biodiesel blends on real-world carbonyl emissions from diesel trucks
	Cao X.; Feng S.; Shen X.; Li X.; Yao X.; Yao Z.
发表日期	2020
ISSN	13522310
卷号	238
英文摘要	This work assessed the effects of biodiesel on carbonyl emissions from diesel trucks. Biodiesel converted from waste cooking oil was employed and mixed with commercial fossil diesel to produce four blends: B0 (pure conventional diesel fuel), B5 (5% v/v biodiesel), B20 (20% v/v biodiesel) and B100 (pure biodiesel). Four diesel trucks were tested under real-world conditions using a portable emissions measurement system, including one China III light-duty diesel truck (LDDT), one China IV LDDT, one China III heavy-duty diesel truck (HDDT) and one China IV HDDT. A driving cycle including highway (HW) and non-highway (NHW) driving conditions was employed and carbonyls were sampled using 2,4-dinitrophenylhydrazine cartridges and analyzed via high performance liquid chromatography. Seven carbonyl compounds were detected, and formaldehyde, acetaldehyde, acetone and butyraldehyde were the primary carbonyls. Total carbonyl emissions from the China III LDDT, China III HDDT and China IV HDDT vehicles with selective catalytic reduction decreased monotonically with increases in the biodiesel proportion, while the China IV LDDT with a particle oxidation catalyst system showed an increasing trend. With increases in the biodiesel proportions, complementary variations were observed in the proportions of formaldehyde and butyraldehyde obtained using the China III LDDT, China IV LDDT and China III HDDT vehicles. However, in the case of the China IV HDDT trials, the formaldehyde and acetaldehyde emissions exhibited complementary variations. Under different driving conditions, the effects of adding biodiesel on carbonyl emission factors were different. In China III LDDT trials, biodiesel reduced carbonyl emissions to a greater extent under HW conditions, but the opposite occurred in China III HDDT tests. Using the China IV LDDT vehicle, the emission factors did not increase as much during HW trials compared with NHW trials when the B5 and B20 fuels were used, but were significantly higher than the NHW values when pure biodiesel was employed. In China III LDDT data, the proportions of formaldehyde, acetaldehyde and butyraldehyde showed opposite variations under the two driving conditions. Using the China IV LDDT vehicle, a significant increase in formaldehyde and decrease in butyraldehyde were found during HW trials, but not NHW trials. Ozone formation potentials were obtained from carbonyls emission factors using the maximum incremental reactivity method and their variations were similar to those of the carbonyl emission factors. © 2020 Elsevier Ltd
英文关键词	Biodiesel; Carbonyl; Diesel truck; Emissions; OFP; PEMS
语种	英语
scopus关键词	Acetaldehyde; Acetone; Automobiles; Catalytic oxidation; Diesel engines; Formaldehyde; High performance liquid chromatography; Off road vehicles; Oils and fats; Selective catalytic reduction; Trucks; 2 ,4-Dinitrophenylhydrazine; Bio-diesel blends; Driving conditions; Heavy-duty diesel; Maximum incremental reactivities; Oxidation catalysts; Ozone formation potentials; Portable emissions measurement systems; Biodiesel; 2,4 dinitrophenylhydrazine; acetaldehyde; acetone; biodiesel; butyraldehyde; carbonyl derivative; crotonaldehyde; formaldehyde; fuel; oil; ozone; propionaldehyde; acetaldehyde; biofuel; catalyst; diesel; emission; formaldehyde; Article; catalysis; China; clinical assessment; comparative study; controlled study; cooking; diesel engine; exhaust gas; fossil; high performance liquid chromatography; highway; oxidation kinetics; priority journal; waste; waste management; China
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145024
作者单位	School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China; Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, 100048, China
推荐引用方式 GB/T 7714	Cao X.,Feng S.,Shen X.,et al. The effects of biodiesel blends on real-world carbonyl emissions from diesel trucks[J],2020,238.
APA	Cao X.,Feng S.,Shen X.,Li X.,Yao X.,&Yao Z..(2020).The effects of biodiesel blends on real-world carbonyl emissions from diesel trucks.Atmospheric Environment,238.
MLA	Cao X.,et al."The effects of biodiesel blends on real-world carbonyl emissions from diesel trucks".Atmospheric Environment 238(2020).