Regulated and speciated hydrocarbon emissions from a catalyst equipped internal combustion engine

Poulopoulos, SG; Samaras, DP; Philippopoulos, CJ

dc.contributor.author	Poulopoulos, SG	en
dc.contributor.author	Samaras, DP	en
dc.contributor.author	Philippopoulos, CJ	en
dc.date.accessioned	2014-03-01T01:17:00Z
dc.date.available	2014-03-01T01:17:00Z
dc.date.issued	2001	en
dc.identifier.issn	1352-2310	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14321
dc.subject	Benzene	en
dc.subject	Catalytic converter	en
dc.subject	Exhaust emissions	en
dc.subject	Unregulated emissions	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.other	Catalysts	en
dc.subject.other	Dynamometers	en
dc.subject.other	Hydraulic brakes	en
dc.subject.other	Industrial emissions	en
dc.subject.other	Internal combustion engines	en
dc.subject.other	Converter operations	en
dc.subject.other	Exhaust emissions	en
dc.subject.other	Hydrocarbons	en
dc.subject.other	acetaldehyde	en
dc.subject.other	benzene	en
dc.subject.other	ethylene	en
dc.subject.other	fuel	en
dc.subject.other	hydrocarbon	en
dc.subject.other	ozone	en
dc.subject.other	toluene	en
dc.subject.other	xylene	en
dc.subject.other	exhaust emission	en
dc.subject.other	air pollution	en
dc.subject.other	article	en
dc.subject.other	catalyst	en
dc.subject.other	combustion	en
dc.subject.other	effluent	en
dc.subject.other	exhaust gas	en
dc.subject.other	gas chromatography	en
dc.subject.other	mass spectrometry	en
dc.subject.other	photochemical smog	en
dc.subject.other	priority journal	en
dc.subject.other	temperature	en
dc.title	Regulated and speciated hydrocarbon emissions from a catalyst equipped internal combustion engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1352-2310(01)00231-X	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1352-2310(01)00231-X	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	In the present work, the effect of engine operating conditions on its exhaust emissions and on catalytic converter operation is studied. A 4-cylinder OPEL 1.61 internal combustion engine equipped with a hydraulic brake dynamometer was used in all the experiments. For exhaust emissions treatment a typical three-way catalyst was used. The highest hydrocarbon and carbon monoxide engine-out emissions were observed at engine power 2-4 HP. These emissions were decreased as the engine power was increased up to 20 HP. Among the various compounds detected in exhaust emissions, the following ones were monitored at engine and catalyst outlet: methane, hexane, ethylene, acetaldehyde, acetone, benzene, toluene and acetic acid. The concentration of each compound in the catalytic converter effluent was in the range 45-132, 5-12, 10-125, 15-22, 3-7, 3-12, 2-9, 0-6 ppm, respectively. After the required temperature for catalyst operation had been achieved, carbon monoxide tailpipe emissions were dramatically decreased and the observed hydrocarbon conversions were also high. Methane was the most resistant compound to oxidation while ethylene was the most degradable compound over the catalyst. The order from the easiest to the most resistant to oxidation compound was: Alkene > Aromatic > Aldehyde > Ketone > Alkane. (C) 2001 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Atmospheric Environment	en
dc.identifier.doi	10.1016/S1352-2310(01)00231-X	en
dc.identifier.isi	ISI:000170933000007	en
dc.identifier.volume	35	en
dc.identifier.issue	26	en
dc.identifier.spage	4443	en
dc.identifier.epage	4450	en