From simulation studies to experimental tests in a reactive dividing wall distillation column

From laboratory experiments to simulation studies of methanol dehydration to produce dimethyl ether reaction—Part II: Simulation and cost estimation

“…It is calculated that the DWC-DME process leads to 44.53 % reduction in operating costs, compared to the classic DME production unit. This saving is in a fair agreement with the A c c e p t e d M a n u s c r i p t 11 researchers findings for the DWCs schemes [9][10][11][12][13][14][15]25]. Figure 7 shows the composition profiles in both sides of the wall.…”

“…By process integration, the feed components can be distilled and separated with a small amount of utilities consumption [7,8]. The main advantage of a DWC is its possibility in saving both energy and capital costs [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. The theoretical studies have shown that DWCs save at least 30 % of energy costs compared to the conventional schemes [7][8][9].…”

“…In order to optimize the DWC system, it is assumed that energy optimization of a DWC with fixed number of trays is equivalent to the energy minimization of the whole DWC process due to this fact that the energy requirement strongly depends on the interconnecting liquid and vapor flows [11]; therefore, it is very important to find the optimal values for thus flows to minimize the energy requirements and make a fair comparison. Moreover, it should be stated that location of side streams and number of stages have only a minor effect on the system and these effects are then neglected [7][8][9][10][11][12][13][14][15][16][17][18][19].…”

Production of Methyl Oleate in Reactive‐Separation Systems

“…Several applications have been reported for the dividing-wall distillation column, such as separation of hydrocarbon mixtures [8], production of fatty esters [9,10], and purification of bioethanol [11] among others. Of the aforementioned applications, reactive distillation has gained importance with reports on its implementation in both pilot-and industrial-scale plants [12,13]. The simultaneous reaction and separation in a dividing-wall distillation column enabled savings in energy consumption and higher conversions for equilibrium reactions since the products are removed as they are formed.…”

A review: control of reactive divided wall distillation column

“…DWCs can be applied to azeotropic, extractive, and reactive distillations, which lead to azeotropic dividing wall columns (ADWC) [1], extractive dividing wall columns (EDWC) [2] and reactive dividing wall columns (RDWC) [3].…”