Naslov
Controllability Study of a Dual Condenser Four Product DWC

Autori
Lukač, Goran ; Halvorsen, Ivar Johan ; Olujić, Žarko ; Dejanović, Igor

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Skup
12th international conference Distillation & Absorption

Mjesto i datum
Toulouse, Francuska, 18.09.2022. - 21.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Distillation ; Dividing wall column ; Column control ; Dynamic simulation

Sažetak
The sustainability of distillation operations could be maximized by implementation of four-product dividing wall columns (DWC), where appropriate, but this is hampered by the lack of related know-how and concerns about controllability of a demanding separation process occurring within a complex internal configuration including up to three liquid and three vapor splits. Due to its unique design featuring two separate overhead condensers, so-called 2-3-3 DWC configuration offers extra degrees of freedom compared to other feasible configurations of a four-product DWC, which, in theory, gives a possibility of manipulating directly one of the vapor splits. Present study is concerned with dynamic properties of a 2-3-3 DWC, and was carried out using established modelling methods and mathematical tools for control system synthesis, but at the same time taking practical limitations and feasibility into consideration. Therefore, a realistic multicomponent feed composition was used, as well as simple, established means of control. Closed-loop performance was evaluated using a series of controlled disturbances. Although the operation could be successfully stabilized, using simple temperature control without active vapor split manipulation could prove insufficient in regard to maintaining desired product composition in certain scenarios.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA