Mass Diffusion Coefficients of Oxygenated Fuel Additives in Diesel Oil and in Heptane atT= (276 to 333) K†

The depletion of fossil fuels has heightened research and utilization of renewable energy such as biodiesel. However, this has thrown up another challenge of significant increase in its byproduct, glycerol. In view of the characteristics and potentials of glycerol, efforts are on the increase to convert it to higher-value products, which will in turn improve the overall economics of biodiesel production. These high-value products include biofuels, oxygenated fuel additives, polymer precursors and other industrial bio-based chemicals. This review gives up-to-date research findings in the conversion of glycerol to the above high-value products, with a special focus on the performance of the catalysts used and their challenges. The specific products reviewed in this paper include hydrogen, ethanol, methanol, acetin, glycerol ethers, solketal, acetal, acrolein, glycerol carbonate, 1,3-propanediol, polyglycerol and olefins.

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Mass transition and mass diffusion coefficients in a diffuse interface model

Physica Scripta ◽

10.1088/1402-4896/ab2e81 ◽

2019 ◽

Vol 94 (12) ◽

pp. 125702

Author(s):

Lun Sheng Pan ◽

Jing Lou ◽

Hong Ying Li ◽

Chang Wei Kang

Keyword(s):

Diffusion Coefficients ◽

Mass Diffusion ◽

Diffuse Interface ◽

Interface Model ◽

Diffuse Interface Model

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Influence of oxygenated fuel additives and their metabolites on the binding of a convulsant ligand of the γ-aminobutyric acidA (GABAA) receptor in rat brain membrane preparations

Toxicology Letters ◽

10.1016/s0378-4274(02)00020-6 ◽

2002 ◽

Vol 129 (3) ◽

pp. 219-226 ◽

Cited By ~ 6

Author(s):

Joseph V Martin ◽

Nesli M Bilgin ◽

M.Michael Iba

Keyword(s):

Rat Brain ◽

Gabaa Receptor ◽

Fuel Additives ◽

Brain Membrane ◽

Oxygenated Fuel

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Role of Variable Conductance on Heat and Mass Transport Mechanism Using Generalized Theory

Journal of Thermal Science and Engineering Applications ◽

10.1115/1.4047445 ◽

2020 ◽

Vol 13 (2) ◽

Author(s):

Imran Haider Qureshi ◽

Ahmed Elmoasry ◽

Jawdat Alebraheem ◽

M. Nawaz

Keyword(s):

Thermal Conductivity ◽

Heat Conduction ◽

Chemical Reaction ◽

Diffusion Coefficients ◽

Mass Diffusion ◽

Memory Effects ◽

Temperature Dependent ◽

Newton's Law ◽

Newton’S Law ◽

The Impact

Abstract Fourier law of heat conduction, its analog Fick's first law, and Newton's law of viscosity are classical laws that are not capable of exhibiting memory effects. Conservation laws based on these classical laws do not give predictions about memory effects on the transport phenomena. Recently, proposed novel laws are called Cattaneo–Christov heat flux. Models are based on the generalization of classical laws of heat conduction, mass diffusion, and Newton's law of viscosity. This investigation considers this generalized theory to model the impact of relaxation phenomenon on the transport of momentum, heat, and mass in Maxwell fluid (viscoelastic fluid) of temperature-dependent viscosity and thermal conductivity in the presence of temperature-dependent mass diffusion coefficients. It is observed from the simulations that memory effects play a key role in controlling momentum, thermal and concentration boundary layer thicknesses. It is also noted that the rate of diffusion of heat and mass has shown an increasing trend when thermal conductivity and mass diffusion coefficients are increased via rise in temperature of the fluid. The generative chemical reaction on the transport of specie relative to the impact on the transport of specie when it is compared with the impact of destructive chemical reaction on the transport of specie.

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