Naslov
Investigation of control structures for a four-product laboratory multiple dividing-wall column using dynamic simulation

Autori
Preißinger, Ulrich ; Lukač, Goran ; Dejanović, Igor ; Grützner, Thomas

Izvornik
Chemical engineering & technology (0930-7516) 44 (2021), 2; 223-237

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
column control ; distillation ; dividing-wall column ; dynamic simulation ; four-product column

Sažetak
The dynamic behavior of a multiple dividing-wall column pilot plant is evaluated by means of dynamic simulation. Three different control structures are developed or adapted from the literature, which are constrained by the actual design features of the pilot plant column. Since in the present case the design of the column was chosen such that very different mixtures can be separated, it cannot be optimally designed for each of these potential mixtures. Rather, the design focused on the flexibility of the plant. All three investigated control structures were tested on feed flow rate and feed composition disturbance and allowed a robust control of the pilot plant, whereby control structure 2 is slightly better than others in terms of steady-state deviations and less pronounced fluctuations during the dynamic phase. The transferability of control structure 2 to other variants of multiple dividing- wall columns is easily possible.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA