Dividing-wall column Process Flowsheets & Simulations
Explore 3 validated, solved Dividing-wall column simulation flowsheets in MaximaLabs — real components: benzene, toluene, ethylbenzene, n_heptane, o_xylene, ethane. Open any one directly in your browser.
Solved via: PENG-ROBINSON.
BTX separation via dividing-wall column
Benzene/toluene/ethylbenzene split into three purified products by a single rigorous dividing-wall column (prefractionator + two coupled main columns) instead of two ordinary columns in series — the thermally-coupled route real DWC retrofits use.
5 unit ops • PENG-ROBINSON
17 0
View & openReformate splitter via dividing-wall column
A refinery catalytic-reformer stream (benzene/toluene/o-xylene plus a non-aromatic n-heptane proxy) is split into three purified aromatics cuts by a single thermally-coupled dividing-wall column instead of two ordinary columns in series — the same DWC economics as the BTX example, applied to a genuine reformate splitter duty. Dejanovic, Matijasevic, Jansen, Olujic, "Designing a Packed Dividing Wall Column for an Aromatics Processing Plant," Ind. Eng. Chem. Res. 2011, 50, 5680.
5 unit ops • PENG-ROBINSON
17 0
View & openNGL fractionation: single-shell Petlyuk dividing-wall column
A natural-gas-liquids cut (ethane / propane / n-butane) split into three on-spec products by ONE thermally-coupled dividing-wall column instead of two columns in series. This uses the native Petlyuk unit op: a prefractionator whose reflux and boilup are supplied by the main column (the single condenser + single reboiler), solved by an outer Wegstein loop that converges the bidirectional vapor/liquid coupling to self-consistency — the coupling legacy sequential-modular solvers approximate with two connected columns whose recycle fails to converge. Honesty note: the vapor-split and liquid-split ratios are specified inputs (not solved from tray hydraulics), and this is an outer-loop coupling of two rigorous MESH sub-solves, not a single monolithic Petlyuk MESH.
5 unit ops • PENG-ROBINSON
18 0
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