A temperature-dependent potential model for mercury in the description of vapour-liquid equilibrium & adsorption in activated carbon
MetadataShow full item record
Funding and Sponsorship
© 2019 Elsevier Ltd A practical potential equation for mercury was developed, by incorporating the long-ranged interaction and multi-body effects into the temperature-dependent dispersion parameters, to describe the thermodynamic properties of the liquid-vapour equilibrium and adsorption in carbonaceous materials. The collision diameter (σ) decreases and the well depth of interaction energy (ε) increases with temperature, with the product σ6ε (a measure of attraction) decreasing with temperature. The critical temperature derived from this model, 1745 K, agrees well with the experimental value of 1751 K, and the wetting temperature of mercury on graphite was found to be 1600 K, supporting the fact that mercury does not wet carbon under ambient conditions. Furthermore, it was illustrated with mercury can fill ultrafine graphitic slit pores, whose widths less than 0.7 nm, under ambient temperatures, because of the enhancement of the solid-fluid potential and the strong intermolecular interactions, and the simulation results qualitatively agree well with experimental data.
Showing items related by title, author, creator and subject.
Pojtanabuntoeng, Kod; Saiwan, C.; Sutthiruangwong, S.; Gallup, D. (2011)The effect of mercury on the corrosion of materials used for tubing in oil and gas production wells was studied. Carbon steel (L80) and 13% chromium stainless steel (13Cr) were selected for study by potentiodynamic ...
Preparation of activated carbon from spent catalyst with mercury by microwave‐induced CO2 activationLiu, Jian; Liu, C.; Zhang, L.; Liu, C.; Cheng, S.; Chandrasekar Srinivasa, K. (2018)This study reported the regeneration of mercury-loaded porous carbon catalyst utilized in the manufacture of PVC (Polyvinyl chloride) resin using the combined effect of microwave heating and CO2 purging. The porosity, ...
Oraby, Elsayed A. (2009)Nowadays, keeping mining and the environment sustainable is a major concern all over the world. Using toxic chemicals such as cyanide and mercury in the gold leaching process is one of the main factors that need to be ...