Simultaneous Reductions of Smoke and NOx from a DI Diesel Engine with EGR and Dimethyl Carbonate

Murayama, Tadashi; Zheng, Ming; Chikahisa, Takemi; Oh, Young-Taig; Fujiwara, Yasuhiro; Tosaka, Shigeru; Yamashita, Masayoshi; Yoshitake, Hideya

doi:10.4271/952518

Cited by 81 publications

(48 citation statements)

References 9 publications

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“…Miyamoto et al (1996) reported an increase in ignition delay when DMC was blended with diesel fuel. Murayama et al (1995) suggested that the addition of DMC by 20% volume fraction caused a longer ignition delay. Some other literatures also reported an increase of ignition delay as well as a decrease of total combustion duration for diesel-DMC blends (Huang et al 2003;Lu et al 2005;Li et al 2006).…”

Section: Combustion Characteristicsmentioning

confidence: 99%

“…DMC exists in liquid state at room temperature, which makes storage and transportation convenient. Murayama et al (1995) suggested that DMC is a suitable oxygenated additive with good blend fuel properties, and there exists a relationship between the amount of soot reduction and the oxygen content of the blended fuel. Huang et al (2003) and Zhang et al (2005) investigated the combustion and emission characteristics of diesel engine fueled with diesel-DMC blends, and found that smoke emission can be reduced without sacrificing NO x emission and thermal efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Zhu

Cheung

Huang

2011

Aerosol Science and Technology

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The effect of fuel composition on the combustion characteristics and particulate emissions of a compression-ignition engine fueled with Euro V diesel fuel blended with dimethyl carbonate (DMC) was investigated experimentally. Blended fuels containing 4.48%, 9.07%, 13.78%, and 18.6% by volume of DMC, corresponding to 3%, 6%, 9%, and 12% by mass of oxygen in the blended fuels, were investigated. By analyzing the measured in-cylinder pressure data and the derived heat release rate, it is observed that the addition of DMC increases the ignition delay and the amount of heat release in the premixed combustion duration, but shortens both the diffusive burning duration and the total combustion duration. On the emission side, the smoke opacity, the particulate mass concentration as well as the total number of particulates are all reduced, while the proportion of soluble organic fraction (SOF) in the particulate is increased, by using the blended fuels. The geometric mean diameter of the particles shifts towards smaller size in comparison with that of the diesel fuel. The particulate mass concentration, the total number of particles and SOF can be further reduced by the use of diesel oxidation catalyst (DOC), while the particles shift towards larger geometric mean diameter for each fuel, indicating that the DOC could reduce the finer particles.

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Section: Combustion Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Zhu

Cheung

Huang

2011

Aerosol Science and Technology

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“…NO x production increases when oxygenates are blended to base diesel, but this variation is really unremarkable (lower than 10%) and reaches its maximum value when the aromatic compounds in the blends are at maximum quantity. Many researchers believe that NO x production variation depends not only on the oxygen content but also on the type of used additive (Choi and Reitz 1999;Montalvo and Liotta 1993;Murayama et al 1995;Song et al 2002). For diglyme and butyl diglyme, the increase is about 2.5% with 5% v/v additive content up to 26% with 15% v/v additive content.…”

Section: Dbe Emissionsmentioning

confidence: 96%

Emissions from Ethers and Organic Carbonate Fuel Additives: A Review

Arteconi

Mazzarini

Nicola

2011

Water Air Soil Pollut

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This paper is a review of the available literature on the main features of 11 of the most widely adopted oxygenated additives to base gasoline and diesel, focusing particularly on the emissions from the oxygenates considered as additives. The oxygenated additives studied are methyl tert-butyl ether, ethyl tertiary butyl ether, tert-amyl ethyl ether, tertiary amyl methyl ether, isopropyl ether, dimethyl carbonate, dimethoxymethane, dibutyl ether, diglycol methyl ether, diethyl carbonate, and 2-methoxyethyl acetate.

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“…68 We found that DFC was easily soluble in diesel #2, 1 : 5 part ratio and vice versa, which implies that DFC would be perfectly soluble in diesel #2 at the small percentage blends (10 wt%) at which DMC was shown to decrease PM emissions by 35%. 69 DFC was also soluble in gasoline but further study of DFC as an additive in gasoline and diesel fuels will be reported in a future communication.…”

Section: Diesel Fuel Properties Of Difusel Carbonate (Dfc)mentioning

confidence: 98%

Solubility of hydrocarbon oils in alcohols (≤C₆) and synthesis of difusel carbonate for degreasing

et al. 2019

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The empirical solubility of hydrocarbon fluids, polyalphaolefin (PAO) and mineral oil, in thirteen small molecular weight alcohols (C 1 -C 6 ) was determined. Butanols, pentanols, and 1-hexanol could dissolve up to PAO-10 and mineral oil. tert-Pentanol and 1-hexanol could also dissolve high-viscosity PAO-150.The dialkyl carbonate of fusel oil (DFC) was synthesized from dimethyl carbonate in 69% yield. DFC had excellent non-polar solubility and could dissolve PAO-150 and several common industrial lubricants. The flash point of DFC was 93 C, more than twice that of isoamyl alcohol. DFC had net heating value of 30.47 MJ kg À1 , nearly double that of dimethyl carbonate. However, its derived cetane number of 22.8 indicates DFC could not be used directly as diesel fuel.

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Simultaneous Reductions of Smoke and NOx from a DI Diesel Engine with EGR and Dimethyl Carbonate

Cited by 81 publications

References 9 publications

Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Emissions from Ethers and Organic Carbonate Fuel Additives: A Review

Solubility of hydrocarbon oils in alcohols (≤C₆) and synthesis of difusel carbonate for degreasing

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Simultaneous Reductions of Smoke and NOx from a DI Diesel Engine with EGR and Dimethyl Carbonate

Cited by 81 publications

References 9 publications

Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Particulate Emission Characteristics of a Compression Ignition Engine Fueled with Diesel–DMC Blends

Emissions from Ethers and Organic Carbonate Fuel Additives: A Review

Solubility of hydrocarbon oils in alcohols (≤C6) and synthesis of difusel carbonate for degreasing

Contact Info

Product

Resources

About

Solubility of hydrocarbon oils in alcohols (≤C₆) and synthesis of difusel carbonate for degreasing