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Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events

Tutkimustuotosvertaisarvioitu

Standard

Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events. / Amanatidis, Stavros; Ntziachristos, Leonidas; Giechaskiel, Barouch; Bergmann, Alexander; Samaras, Zissis.

julkaisussa: Environmental Science and Technology, Vuosikerta 48, Nro 19, 07.10.2014, s. 11527-11534.

Tutkimustuotosvertaisarvioitu

Harvard

Amanatidis, S, Ntziachristos, L, Giechaskiel, B, Bergmann, A & Samaras, Z 2014, 'Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events', Environmental Science and Technology, Vuosikerta. 48, Nro 19, Sivut 11527-11534. https://doi.org/10.1021/es502895v

APA

Amanatidis, S., Ntziachristos, L., Giechaskiel, B., Bergmann, A., & Samaras, Z. (2014). Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events. Environmental Science and Technology, 48(19), 11527-11534. https://doi.org/10.1021/es502895v

Vancouver

Amanatidis S, Ntziachristos L, Giechaskiel B, Bergmann A, Samaras Z. Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events. Environmental Science and Technology. 2014 loka 7;48(19):11527-11534. https://doi.org/10.1021/es502895v

Author

Amanatidis, Stavros ; Ntziachristos, Leonidas ; Giechaskiel, Barouch ; Bergmann, Alexander ; Samaras, Zissis. / Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events. Julkaisussa: Environmental Science and Technology. 2014 ; Vuosikerta 48, Nro 19. Sivut 11527-11534.

Bibtex - Lataa

@article{bddf6899fd2b4cc3b2e3f179592d590d,
title = "Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events",
abstract = "The introduction of selective catalytic reduction (SCR) aftertreatment to meet stringent diesel NOx emission standards around the world increases exhaust ammonia. Further to the direct air quality and health implications of ammonia, this may also lead to particle formation in the exhaust. In this study, an ammonia SCR system was examined with respect to its impact on both solid and total exhaust particle number and size distribution, downstream of a diesel particulate filter (DPF). Fuel post-injection was conducted in some tests to investigate the effect of ammonia during active DPF regeneration. On average, the post-DPF solid >23 nm and total x control. Ammonia did not have a significant additional effect on the high particle concentrations measured during DPF regeneration. Based on species availability and formation conditions, sulfate, nitrate, and chloride salts with ammonium are possible sources of the new particles formed. Ammonia-induced particle formation corresponds to an environmental problem which is not adequately addressed by current regulations.",
author = "Stavros Amanatidis and Leonidas Ntziachristos and Barouch Giechaskiel and Alexander Bergmann and Zissis Samaras",
year = "2014",
month = "10",
day = "7",
doi = "10.1021/es502895v",
language = "English",
volume = "48",
pages = "11527--11534",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "19",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Impact of selective catalytic reduction on exhaust particle formation over excess ammonia events

AU - Amanatidis, Stavros

AU - Ntziachristos, Leonidas

AU - Giechaskiel, Barouch

AU - Bergmann, Alexander

AU - Samaras, Zissis

PY - 2014/10/7

Y1 - 2014/10/7

N2 - The introduction of selective catalytic reduction (SCR) aftertreatment to meet stringent diesel NOx emission standards around the world increases exhaust ammonia. Further to the direct air quality and health implications of ammonia, this may also lead to particle formation in the exhaust. In this study, an ammonia SCR system was examined with respect to its impact on both solid and total exhaust particle number and size distribution, downstream of a diesel particulate filter (DPF). Fuel post-injection was conducted in some tests to investigate the effect of ammonia during active DPF regeneration. On average, the post-DPF solid >23 nm and total x control. Ammonia did not have a significant additional effect on the high particle concentrations measured during DPF regeneration. Based on species availability and formation conditions, sulfate, nitrate, and chloride salts with ammonium are possible sources of the new particles formed. Ammonia-induced particle formation corresponds to an environmental problem which is not adequately addressed by current regulations.

AB - The introduction of selective catalytic reduction (SCR) aftertreatment to meet stringent diesel NOx emission standards around the world increases exhaust ammonia. Further to the direct air quality and health implications of ammonia, this may also lead to particle formation in the exhaust. In this study, an ammonia SCR system was examined with respect to its impact on both solid and total exhaust particle number and size distribution, downstream of a diesel particulate filter (DPF). Fuel post-injection was conducted in some tests to investigate the effect of ammonia during active DPF regeneration. On average, the post-DPF solid >23 nm and total x control. Ammonia did not have a significant additional effect on the high particle concentrations measured during DPF regeneration. Based on species availability and formation conditions, sulfate, nitrate, and chloride salts with ammonium are possible sources of the new particles formed. Ammonia-induced particle formation corresponds to an environmental problem which is not adequately addressed by current regulations.

UR - http://www.scopus.com/inward/record.url?scp=84907936083&partnerID=8YFLogxK

U2 - 10.1021/es502895v

DO - 10.1021/es502895v

M3 - Article

VL - 48

SP - 11527

EP - 11534

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 19

ER -