Distillation is the most widely used but the most energy-consuming separation process in the chemical industry. The internally Heat-Integrated Distillation Columns (HIDiC) are one of the promising alternatives of the conventional distillation processes to reduce the energy consumptions in chemical processes. The HIDiC has a similar structure to a heat exchanger. The rectifying section is contac...

M and control of distillation columns is a research area that evokes considerable interest. On the one hand, substantial savings are possible with good controllers, on the other hand, distillation columns are often used as test cases for new methods of model based controller design. Strongly nonlinear behavior and high order are the characteristics that present challenges when designing control...

In the present paper, Mathematica, the famous computer algebra, is used to perform steadystate and dynamic simulations of a multi-component distillation column. In order to describe the vapor liquid equilibrium (VLE) relationships and to compute the vaporand liquid-phase enthalpies, the Soave Redlich Kwong equation of state (SRK EOS) is chosen. Rigorous modeling is performed where both mass and...

Essential oils have increasing importance in flavour and fragrance industries. They are obtained by distillation techniques. In order to produce an oil with market potential its optimum production parameters have to be well known prior to its commercial production. Determination of the steam distillation parameters of commercially available Laurel leaves oil in pilot plant scale is described. T...

The most important demand in an efficient carbon isotope separation is to keep the cryogenic distillation column parameters at their required set points, despite disturbances or uncertainties. One of the key parameters is the column temperature that has a direct influence on the carbon separation coefficient. The nonlinear model of the separation process considers the top and bottom column temp...

Biodiesel is a fuel made from vegetable oils, animal fats and microbial oil (algae, bacteria and fungi). The raw materials are converted to biodiesel through a chemical reaction involving alcohol and catalyst. The purpose of the present work is to present an efficient process using reactive distillation columns applied to biodiesel production. Reactive distillation is the simultaneous implement...

We obtain an efficient parametrization that ensures stability of switched linear systems under arbitrary switching. Apart from stability analysis, our results are useful for addressing several important system theoretic problems, e.g. designing controllers that ensure robustness against arbitrary combinations of sensor or actuator failure. We illustrate our results by considering control of a d...