Measuring and predicting the vapor pressure of gasoline containing oxygenates

Gaspar, Daniel J.; Phillips, Steven D.; Polikarpov, Evgueni; Albrecht, Karl; Jones, Susanne B.; George, Anthe; Landera, Alexander; Santosa, Daniel M.; Baldwin, Anna G.

doi:10.1016/j.fuel.2019.01.137

Cited by 45 publications

(23 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All of the samples with the addition of bio-ETBE alone demonstrate vapor pressure within the specification limits. The results are in accordance with the results from other publications [6,7,[32][33][34][35].…”

Section: Vapor Pressure Measurementssupporting

confidence: 92%

Impact of Bio-Ethanol, Bio-ETBE Addition on the Volatility of Gasoline with Oxygen Content at the Level of E10

Michalopoulou

Komiotou

Zannikou

et al. 2021

Fuels

View full text Add to dashboard Cite

This study examines the impact of the addition of bio-ethanol/bio-ETBE on the main volatility properties of gasoline. Although several studies have been published on the addition of ethanol or ETBE to gasoline, the simultaneous addition of these oxygenates has not been studied by taking the maximum oxygen content of 3.7% m/m into account. The EN 228:2012-A1:2017 standard specifies the requirements for marketed unleaded gasoline. This standard is able to determine, among other things, a gasoline type with a maximum oxygen content of 3.7% m/m and sets the maximum limits for ethanol content at 10% v/v and 22% v/v for ethers with a minimum five carbon atoms, such as ΕΤΒΕ. Five refinery fractions were mixed in various proportions and were used as base fuels. A total of 30 samples were prepared by blending the base fuels with bio-ethanol/bio-ETBE. In each of these base fuels, bio-ethanol was added in concentrations up to 10% v/v. Subsequently, bio-ETBE was added to each of these fuels in concentrations up to 20.8% v/v for use as a stabilizer. All of the samples were examined using the EN ISO 13016-1 and EN ISO 3405 test methods while considering the volatility requirements set by EN 228. The results showed that the addition of bio-ETBE has a beneficial effect on the volatility characteristics of the samples, as it reduces the vapor pressure of the final blend and sets all fuels in compliance with the required specification limits set by the EN 228 standard.

show abstract

Section: Vapor Pressure Measurementssupporting

confidence: 92%

Impact of Bio-Ethanol, Bio-ETBE Addition on the Volatility of Gasoline with Oxygen Content at the Level of E10

Michalopoulou

Komiotou

Zannikou

et al. 2021

Fuels

View full text Add to dashboard Cite

show abstract

“…Vapor pressure can be regulated by additives or it is possible to use winter gasoline, which evaporates more than the summer gasoline. Gaspar et al, 2019 [ 93 ] analyzed Reid vapor pressure for methanol, ethanol, n–propanol, and i–propanol for various concentrations in gasoline. The results are similar to summer gasoline mixtures analyzed in this paper.…”

Section: Discussionmentioning

confidence: 99%

Physicochemical Properties of Biobutanol as an Advanced Biofuel

et al. 2021

View full text Add to dashboard Cite

Biobutanol is a renewable, less polluting, and potentially viable alternative fuel to conventional gasoline. Biobutanol can be produced from same sources as bioethanol, and it has many advantages over the widespread bioethanol. This paper systematically analyzes biobutanol fuel as an alternative to bioethanol in alcohol–gasoline mixtures and the physicochemical properties. Based on the conducted analyses, it was found that biobutanol mixtures have a more suitable behavior of vapor pressure without the occurrence of azeotrope, do not form a separate phase in lower temperature, it has higher energy density, but slightly reduce the octane number and a have higher viscosity. However, in general, biobutanol has many advantageous properties that could allow its use in gasoline engines instead of the commonly used bioethanol.

show abstract

“…The parameter called exposure (the pollutant concentration multiplied by the time) was used as an independent variable to characterize the effects of pollutants on gas permeation (Figures 4-6) and separation selectivity behavior (Figures 7-9). For example, if the membrane is exposed to 1000 ppm of pollutant for 0.1 h, the exposure is equal to 100 ppm × h. The BTX and dodecane concentrations in Table 1 were estimated by the Antoine equation in CHEMCAD [25].…”

Section: Methodsmentioning

confidence: 99%

The Impact of Various Natural Gas Contaminant Exposures on CO2/CH4 Separation by a Polyimide Membrane

et al. 2020

View full text Add to dashboard Cite

In this study, hollow fibers of commercial polyimide were arranged into membrane modules to test their capacity and performance towards natural gas processing. Particularly, the membranes were characterized for CO2/CH4 separation with and without exposure to some naturally occurring contaminants of natural gases, namely hydrogen sulfide, dodecane, and the mixture of aromatic hydrocarbons (benzene, toluene, xylene), referred to as BTX. Gas permeation experiments were conducted to assess the changes in the permeability of CO2 and CH4 and related separation selectivity. Compared to the properties determined for the pristine polyimide membranes, all the above pollutants (depending on their concentrations and the ensured contact time with the membrane) affected the permeability of gases, while the impact of various exposures on CO2/CH4 selectivity seemed to be complex and case-specific. Overall, it was found that the minor impurities in the natural gas could have a notable influence and should therefore be considered from an operational stability viewpoint of the membrane separation process.

show abstract

Measuring and predicting the vapor pressure of gasoline containing oxygenates

Cited by 45 publications

References 54 publications

Impact of Bio-Ethanol, Bio-ETBE Addition on the Volatility of Gasoline with Oxygen Content at the Level of E10

Impact of Bio-Ethanol, Bio-ETBE Addition on the Volatility of Gasoline with Oxygen Content at the Level of E10

Physicochemical Properties of Biobutanol as an Advanced Biofuel

The Impact of Various Natural Gas Contaminant Exposures on CO2/CH4 Separation by a Polyimide Membrane

Contact Info

Product

Resources

About