The separation of azeotropic mixtures is often energy intensive, thus process intensification (PI) becomes an attractive route to enhance efficiency. Two the most commonly used intensifications are dividing wall columns and hybrid distillation-membrane processes. In this work, three typical distillation structures, followed by pervaporation (D-P), (P-D), then (D-P-D), considered compared with a...

Monoethanolamine is an essential chemical used as feedstock in the production of detergents, emulsifiers, pharmaceuticals, polishes, corrosion inhibitors, and intermediates. It produced industrially by treating ethylene oxide with aqueous ammonia, but reaction also leads to di- tri-ethanolamine less desired by-products. This study first propose intensified process for ethanolamines combining re...

A dynamic model of a reactive divided wall column is presented so as to analyse a novel process concept for the esterification of lactic acid with ethanol to ethyl lactate. The divided wall column is modelled by composing single packing columns to a Petlyuk-structure using different correlations for fluid dynamics and pressure drop. Besides, a variety of side reactions are considered such as th...

• Novel dual reactive dividing wall column for processing bio-based lactic acid Methodology synthesis and design of a distillation Advanced overcomes challenging separations (reactive impurities) Methodologies designing intensified units are necessary to enable the industrial application process intensification concepts. This article presents ruled-based systematic methodology conceptual (dual ...

Dividing Wall Column(DWC) offers the large potential for operating and capital cost saving in compared with conventional distillation sequence. In the studied DWC in this study, the aid of Vmin diagrams, it is shown that without a suitable value for vapor split fraction bellow the dividing wall in different operating conditions, the energy requirement increases from optimal value and it wil...