A new CO2/CH4 gas separation process is presented in this paper. Capture of CO2 from natural gas is carried out using an n-alkane solvent in a conventional physical absorption process. A methodology to find optimal process condition and solvent has been developed using an advanced equation of state (SAFT-VR), process modelling-optimisation software (gPROMS), and detailed process cost estimation...

the simplified perturbed chain statistical associating fluid theory (spc-saft) equation of state (eos) was proposed to describe the thermodynamic properties of pure ionic liquids (ils). a set of spc-saft parameters for 2 ils was obtained by fitting the experimental liquid densities data over a wide range of temperature at atmospheric pressure. good agreement with experimental density data was o...

Recent research has shown that TCP, the quasi-standard reliable transport protocol, exhibits poor performance in mobile ad-hoc networks. Most proposals of alternatives to TCP were aiming at improving performance while maintaining compatibility with existing TCP implementations. In this Master’s thesis, a framework for transport protocols based on the store and forward principle is introduced: S...

While we could argue that the goals of modelling fluid phase equilibria have not changed greatly since the time of van der Waals, there is little doubt that the systems of interest have gradually increased in complexity; surfactants, polymers, hydrogen-bonding molecules such as water, and polyfunctional molecules such as amino acids and peptides are now routinely considered. The demand for effe...

Combing the stress wave signals with Synthetic Aperture Focusing Technique (SAFT) to inspect and image the interior defect of concrete structural has shown its feasibility by some researchers. However, some bright zones displayed in the image plot are not corresponding to the Rayleigh waves and reflection signals from the bottom surface of the structural component or the embedded defect. This t...

National Institute for Occupational Safety and Health (NIOSH) researchers continue to study the potential for lithium and lithium-ion battery thermal runaway from an internal short circuit in equipment for use in underground coal mines. Researchers conducted cell crush tests using a plastic wedge within a 20-L explosion-containment chamber filled with 6.5% CH4-air to simulate the mining hazard....

The aim of this study is to describe the phase equilibrium behavior of aqueous solutions of selected ionic liquids (ILs) as new potential pairs of absorption cooling systems. The ILs under study have a shared cation, 1-butyl-3-methylimidiazolium, [C4mim]þ, and the following anions: methanesulfonate, [CH3SO3] , trifluoromethanesulfonate, [CF3SO3] , acetate, [CH3CO2] , trifluoroacetate, [CF3CO2] ...