Shortcut methods for nonideal multicomponent distillation: 2. Complex columns

Rapid generation of composition profiles for reactive and extractive cascades

“…This method can be used in combination with other shortcut design methods, such as the rectification body method9, 16, 18–19 to implement the nonlinearity of column profiles and to determine key design parameters. By combining the concept of critical composition regions7, it can also be used to screen suitable entrainers for a particular separation before conducting extensive bench scale separation experiments.…”

Residue curves map analysis for tert-amyl methyl ether synthesis by reactive distillation in kinetically controlled conditions with energy-saving evaluation

“…The boundary value method (BVM) [7][8][9] and some other methods (improving limitations of BVM) such as the ''operation leaf'' with corresponding stage composition lines, were applied successfully for hybrid or for kinetically controlled reactive distillation columns with single/multiple feeds [10][11][12][13][14][15][16]. The rectification body method (RBM) [17][18][19][20] or the feed value method (FVM) [21] is also implemented at this level of computation. In the final step, the design takes into account all the process variables at the same time, providing deeper details on the optimal configuration, operating conditions and energy-saving opportunities.…”

Towards computer‐aided separation synthesis

“…Heat integration of distillation networks without establishing rigorous column profiles were studied by several groups (e.g., Aggarwal and Floudas, 1990, 1992; Andrecovich and Westerberg, 1985; Floudas and Paules, 1988). Other methods determined the feasibility and minimum reflux in sharp separations based on topological concepts (Bausa et al, 1998; Doherty and Malone, 2001; Hauan et al, 1999; Julka and Doherty, 1990, 1993; Wahnschafft et al, 1992; Watzdorf et al, 1999; Westerberg, 2004; Westerberg et al, 2000). Some researchers proposed rigorous mathematical programs for optimal feed location and number of stages (Bauer and Stichlmair, 1995, 1996, 1998; Viswanathan and Grossmann, 1993).…”