The processes of extractive distillation and heteroazeotropic mixtures containing water a high-boiling component (propionic acid, acetic 1-methoxy-2-propanol) are compared. Entrainers declared in the literature as effective agents for these were selected separating agents. A process simulation AspenPlus V.11.0 is made. Parametric optimization carried out column operation parameters (number stag...

Abstract The fine chemical and pharmaceutical industries use large amounts of various organic solvents in their manufacturing processes. By reusing them, production costs can be significantly reduced. If we regenerate waste solvent mixtures, have the opportunity to reuse them process or other Our study illustrates an efficient regeneration using example a four-component mixture. Calculations we...

Considerable effort is currently being put towards process intensification to design more sustainable and energy-efficient processes. Hybrid distillation-membrane processes are prime examples of such intensified In this work, different strategies presented for how handle the complexity membrane network hybrid in terms initialisation convergence simulation optimisation. A superstructure approach...

RESUMO – This work aimed the evaluation of a saline extractive distillation for the ethanol production. Unlike the current method of dehydration of ethanol, which uses a solvent, distillation with the use of salt does not include problems related to toxicity and has lower power consumption, since salt is not volatilized within the distillation column. Many salts had been tested like calcium chl...

A combination of molecular modelling and experiments was conducted to study the separation acrylic acid propionic through extractive distillation with polar aprotic entrainers. It found that can be efficiently separated a entrainer, resulting in entrainment making most volatile compound. Vapour-liquid equilibrium were 25 wt% acid, propionic, 50% entrainer. Dimethyl sulfoxide (DMSO) induce highe...