Effectiveness of Selective Catalytic Reduction Systems on Reducing Gaseous Emissions from an Engine Using Diesel and Biodiesel Blends

被引：17

作者：

Borillo, Guilherme C. ^{[1
]}

Tadano, Yara S. ^{[2
]}

Godoi, Ana F. L. ^{[1
]}

Santana, Simone S. M. ^{[1
]}

Weronka, Fernando M. ^{[1
]}

Penteado Neto, Renato A. ^{[3
]}

Rempel, Dennis ^{[3
]}

Yamamoto, Carlos I. ^{[4
]}

Potgieter-Vermaak, Sanja ^{[5
]}

Potgieter, Johannes H. ^{[6
]}

Godoi, Ricardo H. M. ^{[1
]}

机构：

[1] Univ Fed Parana, Environm Engn Dept, BR-81531980 Curitiba, Parana, Brazil

[2] Univ Tecnol Fed Parana, Dept Math, BR-84016210 Ponta Grossa, Parana, Brazil

[3] Inst Technol Dev LACTEC, Vehicle Emiss Lab, BR-80210170 Curitiba, Parana, Brazil

[4] Univ Fed Parana, Chem Engn Dept, BR-81531970 Curitiba, Parana, Brazil

[5] Manchester Metropolitan Univ, Sch Sci & Environm, Div Chem & Environm Sci, Manchester M15 6HB, Lancs, England

[6] Univ Witwatersrand, Sch Chem & Met Engn, ZA-2000 Johannesburg, South Africa

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2015年 / 49卷 / 05期

关键词：

OZONE CREATION POTENTIALS; UNREGULATED EMISSIONS; ORGANIC-COMPOUNDS; UREA-SCR; AMMONIA; EXHAUST; NO; FUEL; DIOXIDE;

D O I：

10.1021/es505701r

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this investigation was to quantify organic and inorganic gas emissions from a four-cylinder diesel engine equipped with a urea selective catalytic reduction (SCR) system. Using a bench dynamometer, the emissions from the following mixtures were evaluated using a Fourier transform infrared (FTIR) spectrometer: low-sulfur diesel (LSD), ultralow-sulfur diesel (ULSD), and a blend of 20% soybean biodiesel and 80% ULSD (B20). For all studied fuels, the use of the SCR system yielded statistically significant (p < 0.05) lower NOx emissions. In the case of the LSD and ULSD fuels, the SCR system also significantly reduced emissions of compounds with high photochemical ozone creation potential, such as formaldehyde. However, for all tested fuels, the SCR system produced significantly (p < 0.05) higher emissions of N2O. In the case of LSD, the NH3 emissions were elevated, and in the case of ULSD and B20 fuels, the non-methane hydrocarbon (NMHC) and total hydrocarbon of diesel (HCD) emissions were significantly higher.

引用

页码：3246 / 3251

页数：6

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