Characteristics of carbonyl compounds emission from a diesel-engine using biodiesel-ethanol-diesel as fuel

被引：114
作者：
Pang, Xiaobing
Shi, Xiaoyan
Mu, Yujing [1 ]
He, Hong
Shuai, Shijin
Chen, Hu
Li, Rulong
机构：
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
[2] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
来源：
ATMOSPHERIC ENVIRONMENT | 2006年 / 40卷 / 36期
关键词：
carbonyl compounds; biodiesel; ethanol; diesel;
D O I：
10.1016/j.atmosenv.2006.06.010
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Characteristics of carbonyl compounds (carbonyls) emissions from biodiesel-ethanol-diesel (BE-diesel) were investigated in a Commins-4B diesel engine and compared with those from fossil diesel. Acetaldehyde was the most abundant carbonyls in the exhaust, followed by formaldehyde, acetone, propionaldehyde and benzaldehyde. Apliphatic carbonyls emitted from BE-diesel were higher than those from diesel fuel, while formaldehyde and aromatic carbonyls were less than those from diesel fuel. Total carbonyls emissions from BE-diesel were 1-12% higher than those from diesel fuel depending on engine operating conditions. The effects of engine speed and load level were also investigated carefully. It was found that total carbonyls emission was in positive correlation with the engine speed. During the constant speed/varying load tests, minimum total carbonyls emission was found at 50% load. Compared with fossil diesel, the BE-diesel was observed to significantly reduce PM emission and increase slightly NO, emission. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7057 / 7065
页数：9
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