Mitigation of NOx emission using aromatic and phenolic antioxidant-treated biodiesel blends in a multi-cylinder diesel engine

Ibrahim Khalil Adam, Morgan Heikal, Abdul Rashid Abdul Aziz, Suzana Yusup

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The present work analyzes the effect of antioxidants on engine combustion performance of a multi-cylinder diesel engine fueled with PB30 and PB50 (30 and 50 vol.% palm biodiesel (PB)). Four antioxidants namely N,N′-diphenyl-1,4-phenylenediamine (DPPD), N-phenyl-1,4-phenylenediamine (NPPD), 2(3)-tert-Butyl-4-methoxyphenol (BHA), and 2-tert-butylbenzene-1,4-diol (TBHQ) were added at concentrations of 1000 and 2000 ppm to PB30 and PB50. TBHQ showed the highest activity in increasing oxidation stability in both PB30 and PB50 followed by BHA, DPPD, and NPPD respectively, without any negative effect on physical properties. Compared to diesel fuel, PB blends showed 4.61–6.45% lower brake power (BP), 5.90–8.69% higher brake specific fuel consumption (BSFC), 9.64–11.43% higher maximum in cylinder pressure, and 7.76–12.51% higher NO emissions. Carbon monoxide (CO), hydrocarbon (HC), and smoke opacity were reduced by 36.78–43.56%, 44.12–58.21%, and 42.59–63.94%, respectively, than diesel fuel. The start of combustion angles (SOC) of PB blends was − 13.2 to − 15.6 °CA BTDC, but the combustion delays were 5.4–7.8 °CA short compared to diesel fuel which were − 10 °CA BTDC and 11°CA respectively. Antioxidant fuels of PB showed higher BP (1.81–5.32%), CO (8.41–24.60%), and HC (13.51–37.35%) with lower BSFC (1.67–7.68%), NO (4.32–11.53%), maximum in cylinder pressure (2.33–4.91%) and peak heat release rates (HRR) (3.25–11.41%) than baseline fuel of PB. Similar SOC of − 13 to − 14 °CA BTDC was observed for PB blended fuels and antioxidants. It can be concluded that antioxidants’ addition is effective in increasing the oxidation stability and in controlling the NOx emissions of palm biodiesel fuelled diesel engine.

Original languageEnglish
Pages (from-to)28500-28516
Number of pages17
JournalEnvironmental Science and Pollution Research
Volume25
Issue number28
DOIs
Publication statusPublished - 7 Aug 2018

Fingerprint

Biofuels
diesel engine
Engine cylinders
Biodiesel
Antioxidants
antioxidant
Diesel engines
mitigation
Brakes
Gasoline
combustion
Diesel fuels
fuel consumption
Butylated Hydroxyanisole
carbon monoxide
Carbon Monoxide
Hydrocarbons
hydrocarbon
Fuel consumption
Carbon monoxide

Keywords

  • Antioxidant
  • Combustion
  • NO reduction
  • Oxidation stability

Cite this

Adam, Ibrahim Khalil ; Heikal, Morgan ; Aziz, Abdul Rashid Abdul ; Yusup, Suzana. / Mitigation of NOx emission using aromatic and phenolic antioxidant-treated biodiesel blends in a multi-cylinder diesel engine. In: Environmental Science and Pollution Research. 2018 ; Vol. 25, No. 28. pp. 28500-28516.
@article{9a644a3090784ddba44968a5041029dc,
title = "Mitigation of NOx emission using aromatic and phenolic antioxidant-treated biodiesel blends in a multi-cylinder diesel engine",
abstract = "The present work analyzes the effect of antioxidants on engine combustion performance of a multi-cylinder diesel engine fueled with PB30 and PB50 (30 and 50 vol.{\%} palm biodiesel (PB)). Four antioxidants namely N,N′-diphenyl-1,4-phenylenediamine (DPPD), N-phenyl-1,4-phenylenediamine (NPPD), 2(3)-tert-Butyl-4-methoxyphenol (BHA), and 2-tert-butylbenzene-1,4-diol (TBHQ) were added at concentrations of 1000 and 2000 ppm to PB30 and PB50. TBHQ showed the highest activity in increasing oxidation stability in both PB30 and PB50 followed by BHA, DPPD, and NPPD respectively, without any negative effect on physical properties. Compared to diesel fuel, PB blends showed 4.61–6.45{\%} lower brake power (BP), 5.90–8.69{\%} higher brake specific fuel consumption (BSFC), 9.64–11.43{\%} higher maximum in cylinder pressure, and 7.76–12.51{\%} higher NO emissions. Carbon monoxide (CO), hydrocarbon (HC), and smoke opacity were reduced by 36.78–43.56{\%}, 44.12–58.21{\%}, and 42.59–63.94{\%}, respectively, than diesel fuel. The start of combustion angles (SOC) of PB blends was − 13.2 to − 15.6 °CA BTDC, but the combustion delays were 5.4–7.8 °CA short compared to diesel fuel which were − 10 °CA BTDC and 11°CA respectively. Antioxidant fuels of PB showed higher BP (1.81–5.32{\%}), CO (8.41–24.60{\%}), and HC (13.51–37.35{\%}) with lower BSFC (1.67–7.68{\%}), NO (4.32–11.53{\%}), maximum in cylinder pressure (2.33–4.91{\%}) and peak heat release rates (HRR) (3.25–11.41{\%}) than baseline fuel of PB. Similar SOC of − 13 to − 14 °CA BTDC was observed for PB blended fuels and antioxidants. It can be concluded that antioxidants’ addition is effective in increasing the oxidation stability and in controlling the NOx emissions of palm biodiesel fuelled diesel engine.",
keywords = "Antioxidant, Combustion, NO reduction, Oxidation stability",
author = "Adam, {Ibrahim Khalil} and Morgan Heikal and Aziz, {Abdul Rashid Abdul} and Suzana Yusup",
year = "2018",
month = "8",
day = "7",
doi = "10.1007/s11356-018-2863-8",
language = "English",
volume = "25",
pages = "28500--28516",
journal = "Environmental Science and Pollution Research",
issn = "0944-1344",
number = "28",

}

Mitigation of NOx emission using aromatic and phenolic antioxidant-treated biodiesel blends in a multi-cylinder diesel engine. / Adam, Ibrahim Khalil; Heikal, Morgan; Aziz, Abdul Rashid Abdul; Yusup, Suzana.

In: Environmental Science and Pollution Research, Vol. 25, No. 28, 07.08.2018, p. 28500-28516.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Mitigation of NOx emission using aromatic and phenolic antioxidant-treated biodiesel blends in a multi-cylinder diesel engine

AU - Adam, Ibrahim Khalil

AU - Heikal, Morgan

AU - Aziz, Abdul Rashid Abdul

AU - Yusup, Suzana

PY - 2018/8/7

Y1 - 2018/8/7

N2 - The present work analyzes the effect of antioxidants on engine combustion performance of a multi-cylinder diesel engine fueled with PB30 and PB50 (30 and 50 vol.% palm biodiesel (PB)). Four antioxidants namely N,N′-diphenyl-1,4-phenylenediamine (DPPD), N-phenyl-1,4-phenylenediamine (NPPD), 2(3)-tert-Butyl-4-methoxyphenol (BHA), and 2-tert-butylbenzene-1,4-diol (TBHQ) were added at concentrations of 1000 and 2000 ppm to PB30 and PB50. TBHQ showed the highest activity in increasing oxidation stability in both PB30 and PB50 followed by BHA, DPPD, and NPPD respectively, without any negative effect on physical properties. Compared to diesel fuel, PB blends showed 4.61–6.45% lower brake power (BP), 5.90–8.69% higher brake specific fuel consumption (BSFC), 9.64–11.43% higher maximum in cylinder pressure, and 7.76–12.51% higher NO emissions. Carbon monoxide (CO), hydrocarbon (HC), and smoke opacity were reduced by 36.78–43.56%, 44.12–58.21%, and 42.59–63.94%, respectively, than diesel fuel. The start of combustion angles (SOC) of PB blends was − 13.2 to − 15.6 °CA BTDC, but the combustion delays were 5.4–7.8 °CA short compared to diesel fuel which were − 10 °CA BTDC and 11°CA respectively. Antioxidant fuels of PB showed higher BP (1.81–5.32%), CO (8.41–24.60%), and HC (13.51–37.35%) with lower BSFC (1.67–7.68%), NO (4.32–11.53%), maximum in cylinder pressure (2.33–4.91%) and peak heat release rates (HRR) (3.25–11.41%) than baseline fuel of PB. Similar SOC of − 13 to − 14 °CA BTDC was observed for PB blended fuels and antioxidants. It can be concluded that antioxidants’ addition is effective in increasing the oxidation stability and in controlling the NOx emissions of palm biodiesel fuelled diesel engine.

AB - The present work analyzes the effect of antioxidants on engine combustion performance of a multi-cylinder diesel engine fueled with PB30 and PB50 (30 and 50 vol.% palm biodiesel (PB)). Four antioxidants namely N,N′-diphenyl-1,4-phenylenediamine (DPPD), N-phenyl-1,4-phenylenediamine (NPPD), 2(3)-tert-Butyl-4-methoxyphenol (BHA), and 2-tert-butylbenzene-1,4-diol (TBHQ) were added at concentrations of 1000 and 2000 ppm to PB30 and PB50. TBHQ showed the highest activity in increasing oxidation stability in both PB30 and PB50 followed by BHA, DPPD, and NPPD respectively, without any negative effect on physical properties. Compared to diesel fuel, PB blends showed 4.61–6.45% lower brake power (BP), 5.90–8.69% higher brake specific fuel consumption (BSFC), 9.64–11.43% higher maximum in cylinder pressure, and 7.76–12.51% higher NO emissions. Carbon monoxide (CO), hydrocarbon (HC), and smoke opacity were reduced by 36.78–43.56%, 44.12–58.21%, and 42.59–63.94%, respectively, than diesel fuel. The start of combustion angles (SOC) of PB blends was − 13.2 to − 15.6 °CA BTDC, but the combustion delays were 5.4–7.8 °CA short compared to diesel fuel which were − 10 °CA BTDC and 11°CA respectively. Antioxidant fuels of PB showed higher BP (1.81–5.32%), CO (8.41–24.60%), and HC (13.51–37.35%) with lower BSFC (1.67–7.68%), NO (4.32–11.53%), maximum in cylinder pressure (2.33–4.91%) and peak heat release rates (HRR) (3.25–11.41%) than baseline fuel of PB. Similar SOC of − 13 to − 14 °CA BTDC was observed for PB blended fuels and antioxidants. It can be concluded that antioxidants’ addition is effective in increasing the oxidation stability and in controlling the NOx emissions of palm biodiesel fuelled diesel engine.

KW - Antioxidant

KW - Combustion

KW - NO reduction

KW - Oxidation stability

UR - http://www.scopus.com/inward/record.url?scp=85051869299&partnerID=8YFLogxK

U2 - 10.1007/s11356-018-2863-8

DO - 10.1007/s11356-018-2863-8

M3 - Article

VL - 25

SP - 28500

EP - 28516

JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

SN - 0944-1344

IS - 28

ER -