Combustion and Emissions Characteristics of Valeric Biofuels in a Compression Ignition Engine

Contino, Francesco; Dagaut, Philippe; Dayma, Guillaume; Halter, Fabien; Foucher, Fabrice; Mounaïm‐Rousselle, Christine

doi:10.1061/(asce)ey.1943-7897.0000161

Cited by 34 publications

(24 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Valeric acid is the precursor of valeric biofuels, which are esters that range from methyl to pentyl valerate, that can also be produced from LA. The two most promising options for use in current diesel engines are butyl and pentyl valerate . Studies have shown that the addition of 15 % by volume of ethyl valerate to diesel did not have a negative effect on engine wear, oil degradation, vehicle durability, engine deposits, or regulated tailpipe emissions.…”

Section: La Applications and Marketmentioning

confidence: 99%

“…Thet wo most promisingo ptions for use in current diesel engines are butyl and pentyl valerate. [29] Studiesh ave shown that the addition of 15 %b yvolume of ethyl valerate to diesel did not have an egative effect on engine wear, oil degradation,v ehicle durability, engine deposits,o rr egulatedt ailpipe emissions.H owever, as light decrease in mileage was observed and could be explained by the lower energy density of ethyl valerate in comparison to that of diesel; [30] this problem is easily circumvented through adequate pricing of ethyl valerate,ona nenergy content basis.…”

Section: Fuels Andf Uel Additivesmentioning

confidence: 99%

See 1 more Smart Citation

Making Levulinic Acid and Ethyl Levulinate Economically Viable: A Worldwide Technoeconomic and Environmental Assessment of Possible Routes

et al. 2017

View full text Add to dashboard Cite

Ethyl levulinate is a diesel additive that has received special attention recently due to its potential for production in large quantities from inexpensive feedstocks. Several processes have been developed for the conversion of biomass into levulinic acid and ethyl levulinate, and an economic analysis of these routes would indicate the main hindering factors of their commercialization. This Review focuses on filling this gap in current knowledge by gathering data from scientific papers and patents to create a simulation to analyze processes by focusing on the production of ethyl levulinate in nine countries or regions across the globe. The key indicator to analyze the economic feasibility of ethyl levulinate production is a comparison of its minimum selling price to the local wholesale price of diesel on an energy basis. Processes simulated in Brazil, China, and India presented promising results with feedstocks such as sugarcane bagasse and rice residues. Also, the integration of ethyl levulinate production into existing ethanol plants is a factor that may improve process economics. Overall, this Review specifies key factors in economic and environmental performances of the processes to indicate research topics that could achieve high impact on industrial‐scale processes once matured.

show abstract

Section: La Applications and Marketmentioning

confidence: 99%

Section: Fuels Andf Uel Additivesmentioning

confidence: 99%

Making Levulinic Acid and Ethyl Levulinate Economically Viable: A Worldwide Technoeconomic and Environmental Assessment of Possible Routes

et al. 2017

View full text Add to dashboard Cite

show abstract

“…This effect was also observed for other oxygenated fuels such as biodiesel, levulinate esters, valerate esters and dimethyl ether. 17,37–39 However, in specific engine conditions, the CO emissions for the DES 20 blend are higher, as can be seen at moderate engine speeds (2000–3500 r/min) and low pedal demands (0–5%). This may be due to the lower cetane number of the fuel, which is reported to cause unstable combustion events and a significant amount of incomplete combustion at low loads due to the long ignition delay.…”

Section: Resultsmentioning

confidence: 91%

“…35 The increase in the NO x emissions is similar to those observed for alternative ester fuels, in particular biodiesel, levulinate and valerate esters. 17,[37][38][39] It should be noted, however, that to determine the cause of the NO x increase accurately, an in-cylinder pressure and combustion analysis is required.…”

Section: Engine Performance and Emissionsmentioning

confidence: 99%

The emissions and the performance of diethyl succinate in a diesel fuel blend

Jenkins

Bannister

Chuck

2017

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

The finite natures of fossil fuels and their contributions to anthropogenic climate change are driving the development of biofuels. However, because of the inherent issues with current biofuels, such as ethanol and biodiesel, innovative replacements are being increasingly sought. Recently, four esters produced from fermentation, namley diethyl succinate, dibutyl succinate, dibutyl fumarate and dibutyl malonate, were reported to have suitable physical properties as a substitute for conventional diesel fuel. Although the physical properties are indicative of the fuel behaviour, the determination of the combustion emissions and the performance of a fuel using controlled engine testing is vital. In this investigation, the engine performance and emissions produced from the most viable fuel, namely diethyl succinate, were examined. Diethyl succinate was blended with diesel in a 20 vol % blend, owing to the low cetane number of diethyl succinate, and the emissions established in pseudo-steady-state conditions using a 2.0 L turbocharged direct-injection EURO 3-compliant light commercial vehicle equipped with a direct-injection common-rail diesel engine. When using the diesel–20 vol % diethyl succinate blend, the fuel demand and the wheel force were higher for the majority of engine speeds than those of diesel, whereas the exhaust gas temperatures were lower. The difference between the exhaust gas temperature for the diesel–20 vol % diethyl succinate blend and that for diesel increased with increasing pedal demand. In comparison with the carbon monoxide emissions from petroleum-derived diesel, the carbon monoxide emissions obtained when using the diesel–20 vol % diethyl succinate blend were reduced, most probably because of more complete combustion due to the increased oxygen content. However, the total hydrocarbon emissions and the mono-nitrogen oxide emissions were shown to increase on using the diethyl succinate blend. Both of these factors were presumably due to the lower cetane number of the fuel, although the increase in the total hydrocarbon emissions was deemed negligible because of the low amount produced by both fuels.

show abstract

“…Several studies have been carried out to evaluate the properties of such biofuels (ethyl-, butyl-and pentyl-esters) and to test them in compression-ignition and spark-ignition engines (Contino et al, 2011(Contino et al, , 2014Jenkins et al, 2013). The advantage of these ester-based biofuels is that the OAs and alcohols needed for the esterification can be simultaneously produced by acidogenesis of lowvalue biomass wastes (Contino et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Economic evaluation of technology for a new generation biofuel production using wastes

Κουτίνας¹,

Bekatorou²,

Kandylis³

et al. 2016

Bioresource Technology

View full text Add to dashboard Cite

Combustion and Emissions Characteristics of Valeric Biofuels in a Compression Ignition Engine

Cited by 34 publications

References 22 publications

Making Levulinic Acid and Ethyl Levulinate Economically Viable: A Worldwide Technoeconomic and Environmental Assessment of Possible Routes

Making Levulinic Acid and Ethyl Levulinate Economically Viable: A Worldwide Technoeconomic and Environmental Assessment of Possible Routes

The emissions and the performance of diethyl succinate in a diesel fuel blend

Economic evaluation of technology for a new generation biofuel production using wastes

Contact Info

Product

Resources

About