Amino acids under hydrothermal conditions: apparent molar heat capacities of aqueous alpha-alanine, beta-alanine, glycine, and proline at temperatures from 298 to 500 K and pressures up to 30.0 MPa

Article Abstract:

The thermal stability of the candidate amino acids under hydrothermal conditions were examined and determined the apparent molar volume of alpha alanine, beta alanine, and proline using the platinum vibrating tube densitometers. The hydration term becomes larger for larger molecules, necessitating a more realistic modeling approach in which the presence of hydrophobic groups and the location of the dipole are specifically considered.

Amino acids, Glycine

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Heat transfer and thermographic analysis of catalyst surface during multiphase phenomena under spray-pulsed conditions for dehydrogenation of cyclohexane over Pt catalysts

Article Abstract:

The dehydrogenation of cyclohexane over Pt/alumite and Pt/activated carbon catalysts was carried out for hydrogen storage and supply to fuel cell applications. The analysis of temperature profiles, reaction products over two different supports namely activated carbon cloth and aluminate, revealed that the more conductive support such as aluminate is more suitable for dehydrogenation of cyclohexane.

Science & research, Cyclic crudes and intermediates, Cyclic Crude and Intermediate Manufacturing, Cyclohexane, Research, Heat transfer

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Heat of adsorption of naphthalene on Pt(111) measured by adsorption calorimetry

Article Abstract:

The heat of adsorption of naphthalene on Pt(111) at 300K was measured with single-crystal adsorption calorimetry. The heat of adsorption of naphthalene on Pt(111) decreases with coverage and the heat of formation of naphthalene on Pt(111) is, 166kJ/mol at zero coverage.

Naphthalene, Petrochemical Manufacturing, Usage, Calorimetry

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