Effects of the biodiesel blend fuel on aldehyde emissions from diesel engine exhaust

Individual hydrocarbons and particulate matter emission from a turbocharged CRDI diesel engine fueled with n -butanol/diesel blends

“…The SOF contains polycyclic aromatic compounds such as PAHs, containing oxygen, nitrogen, and sulfur [37]. Also, an increase in the proportion of oxygen in the fuel blends may cause them to emit more aliphatic and aromatic components, leading to the formation of agglomerates and PAHs [38] and it has a close relationship to the results shown in Fig. 4.…”

Seasonal Variation and Source Apportionment of Atmospheric Carbonyl Compounds in Urban Kaohsiung, Taiwan

“…FC1: high loadings of formaldehyde, benzaldehyde and tolualdehyde are related to gasoline engines emissions, whereas acetone, propionaldehyde and hexaldehyde are related to petrochemical industry emissions. FC2: high loadings of acetaldehyde and isovaleraldehyde are related to food industry emissions , whereas acetaldehyde, crotonaldehyde and cyclohexanone are found in diesel engines emissions (Schauer et al, 1999;Peng et al, 2008;Lin et al, 2009). FC3: high loadings of heptaldehyde, octaldehyde, nonaldehyde and decylaldehyde are related to restaurant emissions.…”

Emission analysis of a modern Tier 4 DI diesel engine fueled by biodiesel-diesel blends with a cold flow improver (Wintron Synergy) at multiple idling conditions

“…The CFI chosen for this study is Wintron Synergy, which is a combination of polymethacrylate compounds in a solution of mineral oil [36]. Polymethacrylate (PMA) is an oxygenated compound with significant amount of oxygen in it [37]. The objective of this study is to address multiple idle conditions using Synergy as an additive on Tier 4 engines.…”

“…Furthermore, wall-adhering of fuel and overleaning of fuel air mixture play an important role to partial oxidation of unburnt hydrocarbon fuels; this is also responsible for aldehyde emissions. Typically formaldehyde and acetaldehyde are the most prominent aldehydes with the majority of emissions being formaldehyde [37]. At idle conditions diesel engines typically run more lean which allows for the intermediate combustion products such as aldehydes to convert further to CO, CO 2 and H 2 O.…”