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Reactive distillation for multiple-reaction systems: optimisation study using an evolutionary algorithm

Keller T., Dreisewerd B., Górak A.

Chemical and Process Engineering

2013

Vol. 34, nr 1

17--38

Reactive distillation (RD) has already demonstrated its potential to significantly increase reactant conversion and the purity of the target product. Our work focuses on the application of RD to reaction systems that feature more than one main reaction. In such multiple-reaction systems, the application of RD would enhance not only the reactant conversion but also the selectivity of the target product. The potential of RD to improve the product selectivity of multiple reaction systems has not yet been fully exploited because of a shortage of available comprehensive experimental and theoretical studies. In the present article, we want to theoretically identify the full potential of RD technology in multiple-reaction systems by performing a detailed optimisation study. An evolutionary algorithm was applied and the obtained results were compared with those of a conventional stirred tank reactor to quantify the potential of RD to improve the target product selectivity of multiple-reaction systems. The consecutive transesterification of dimethyl carbonate with ethanol to form ethyl methyl carbonate and diethyl carbonate was used as a case study.

Opracowanie modelu równowagi stanu agroekosystemu z zastosowaniem równań Waltera

Chigarev Y., Nowowiejski R.

Inżynieria Rolnicza

2003

R. 7, nr 9

199--205

Praca przedstawia matematyczne ujęcie zagadnienia równowagi agroekosystemu w aspekcie energii wprowadzanej do gleby poprzez urządzenia techniki rolniczej i jej wpływu na energię populacji dżdżownic. W wyniku otrzymano zależność wiążącą te dwie wielkości i wykazano cykliczność ich przebiegu.

The work presents a mathematic view upon the agricultural ecosystem balance in the aspect of the energy introduced to the soil by technical agricultural equipment and its influence upon the earthworm population. As result, a relationship was obtained, relating these two variables and their cyclical feature was proven.