A mathematical model for polymerization kinetics and molar mass development in the nitroxide-mediated (NMP) of vinyl monomers supercritical carbon dioxide (scCO2) has been developed. The method moments is used development. perturbed-chain statistical associating fluid theory (PC-SAFT) equation state to estimate number stable phases present at equilibrium reaction mixture, critical average chain...

The methods for improving second law efficiency have been considered in this paper by using liquid vapour heat exchanger is investigated in this paper. Detailed energy and exergy analysis of multi-evaporators at different temperatures with single compressor and single expansion valve using liquid vapour heat exchanger vapour compression refrigeration systems have been done in terms of performan...

The associative property of artificial neural networks (ANNs) and their inherent ability to “learn” and “recognize” highly non-linear and complex relationships finds them ideally suited to a wide range of applications in chemical engineering. The present paper deals with the potential applications of ANNs in thermodynamics – particularly, the prediction/ estimation of vapour-liquid equilibrium ...

In process simulation, reliable and accurate property estimation methods play an important role in the solution of various simulation problems where convergence is often traced to failures in the reliable predictions of physical and thermodynamic properties. Convergence and reliability of the simulation is heavily dependent on the fluid package selected. Predictions of phase equilibrium using v...

The phase behaviour of two model multi-component salt-water mixtures (NaCl-KCl-H2O and NaCl-Na2SO4-H2O) was investigated for the application supercritical water desalination (SCWD). experimental investigation a two-step procedure starting with qualitative analysis followed by quantitative measurements. experiments served as screening step to visually inspect behaviour. results NaCl-KCl-H2O, sho...

We consider fluids where the attractive interaction at distances slightly larger than the particle size is dominated at larger distances by a repulsive contribution. A previous investigation of the effects of the competition between attraction and repulsion on the liquid-vapour transition and on the correlations is extended to the study of the stability of liquid-vapour phase separation with re...

Extracts from a peat, a low-rank coal and a bituminous oíl shale obtained with liquid carbon dioxide were studied by capillary gas chromatography-mass spectrometry and compared with those obtained by Soxhlet extraetion with n-hexane. Although the extraetion yields with liquid carbon dioxide were lower, the composition of the extraets, comprising mainly a large variety of linear and cyclic hydro...