Oxygenates for Advanced Petroleum-Based Diesel Fuels

Naegeli, D. W.; Moulton, Stan; Owens, E.C.; Frame, Edwin A

doi:10.21236/ada465522

Cited by 14 publications

(8 citation statements)

References 16 publications

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“…It is important to point out that neat diesel fuel usually does not have MTBE [26] and the amount of other oxygenated compounds is low [27][28][29]. Therefore, there are not tert-butylation agents responsible of the alkylation of aromatic compounds.…”

Section: Diesel Fuel Mixed With Sulphuric Acidmentioning

confidence: 99%

Study of chemical modifications in acidified ignitable liquids analysed by GC–MS

2015

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Section: Diesel Fuel Mixed With Sulphuric Acidmentioning

confidence: 99%

Study of chemical modifications in acidified ignitable liquids analysed by GC–MS

2015

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“…27 Other authors have argued that the addition of more than 5% of any oxygenate additive would be cost-prohibitive or that additive supplies would prevent fuel formulation on such a concentration level for the entire fleet. 28,29 Several major classes of chemical additives have been considered for diesel oxygenates: alcohols, ethers, ketones, glycol ethers, glycol esters, lactones, and carbonates. The best studied of these fluids are the lower organic carbonates, organic ethers, acetates, glycol ethers, and glycol esters.…”

Section: ' Introductionmentioning

confidence: 99%

Comparison of Diesel Fuel Oxygenate Additives to the Composition-Explicit Distillation Curve Method. Part 1: Linear Compounds with One to Three Oxygens

et al. 2011

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There is a great deal of interest in formulating oxygenated diesel fuels that produce low particulate emissions. The most common oxygenate additives for diesel fuels include the glycol ethers, glycol esters, alcohols, ethers, and ketones. It is important to characterize the mixture properties of diesel fuel with oxygenate additives, to assess the degree of departure of the oxygenated fuels from the base fuel. One of the most important properties to use for this purpose is the volatility, as expressed by the distillation curve. We have recently introduced several important improvements in the measurement of distillation curves of complex fluids. The modifications to the classical measurement provide (1) a composition-explicit data channel for each distillate fraction (for both qualitative, quantitative, and trace analysis), (2) temperature measurements that are true thermodynamic state points that can be modeled with an equation of state, (3) temperature, volume, and pressure measurements of low uncertainty suitable for equation of state development, (4) consistency with a century of historical data, (5) an assessment of the energy content of each distillate fraction, and (6) a corrosivity assessment of each distillate fraction. In this paper, we present measurements for dimethoxymethane, butyl methyl ether, 1,2-dimethoxyethane, 2-methoxyethyl acetate, 2-ethoxyethyl acetate, and diethylene glycol dimethyl ether. We find that the more volatile additives cause significant early departures from the distillation curves of diesel fuel, while the less volatile additives act more to displace the entire curve. We also note that the additive affects the curve shape and temperature profile even after being totally depleted, an observation made in earlier studies of oxygenate additive mixtures.

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“…Alcohols constitute a widely tested category of oxygenated fuel components to use in mixtures with conventional ultra-low-sulfur diesel (ULSD) [21][22][23]. As oxygenates, they introduce oxygen into the fuel and are known to help promote complete combustion and reduce PM, usually leaving NOx unaffected or slightly changed (increased or decreased) [5,8,21,[24][25][26][27]. Furthermore, alcohols can be produced from biomass, thus helping increase the renewable energy share in the fuel blend.…”

Section: Of 20mentioning

confidence: 99%

Exhaust Emissions and Physicochemical Properties of n-Butanol/Diesel Blends with 2-Ethylhexyl Nitrate (EHN) or Hydrotreated Used Cooking Oil (HUCO) as Cetane Improvers

2018

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Currently, n-butanol is a promising oxygenate (potentially of renewable origin) to be used in blends with conventional diesel fuel in compression ignition engines. However, its poor ignition quality can drastically deteriorate the cetane number (CN) of the blend. In the present work, the effects of adding n-butanol to ultra-low-sulfur diesel (ULSD) were assessed, aiming at simultaneously eliminating its negative effect on the blend’s ignition quality. Concentrations of 10% and 20% (v/v) n-butanol in ULSD fuel were studied. As cetane-improving agents, a widely used cetane improver (2-ethylhexyl nitrate—EHN) and a high-CN, bio-derived paraffinic diesel (hydrotreated used cooking oil—HUCO) were used. The initial investigation of ignition quality improvement with the addition of either EHN or HUCO produced four “ignition quality response curves” that served as mixing guides in order to create four blends of identical ignition quality as the baseline ULSD fuel. These four blends (10% and 20% v/v n-butanol in ULSD fuel, with the addition of either EHN or HUCO, at the cost of ULSD volume share only) were evaluated comparatively to the baseline ULSD fuel and a 10% (v/v) n-butanol/90% ULSD blend with regards to their physicochemical properties and the effect on the operation and exhaust emissions of a stationary diesel engine.

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Oxygenates for Advanced Petroleum-Based Diesel Fuels

Cited by 14 publications

References 16 publications

Study of chemical modifications in acidified ignitable liquids analysed by GC–MS

Study of chemical modifications in acidified ignitable liquids analysed by GC–MS

Comparison of Diesel Fuel Oxygenate Additives to the Composition-Explicit Distillation Curve Method. Part 1: Linear Compounds with One to Three Oxygens

Exhaust Emissions and Physicochemical Properties of n-Butanol/Diesel Blends with 2-Ethylhexyl Nitrate (EHN) or Hydrotreated Used Cooking Oil (HUCO) as Cetane Improvers

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