Plantwide optimization coupled with column sequencing and stacking using a process simulator automation server

Ni, Yuan-Wei; Lin, Wan-Wan; Tang, Weiting; Ward, Jeffrey D.

doi:10.1016/j.compchemeng.2020.107196

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…In this work, all process designs are optimized using an simulated annealing (SA) algorithm , with total annual cost (TAC) as the objective function. TAC is determined by the following formula: The payback period is assumed to be 3 years in this work.…”

Section: Process Simulation and Optimizationmentioning

confidence: 99%

“…SA is a stochastic algorithm and global optimality of the solution cannot be guaranteed. The algorithm used in this work is the same as that used previously by Ward and co-workers. ,,, Decision variables for all distillation configurations are listed in Table S1 in the Supporting Information. All column pressures are optimization variables.…”

Section: Process Simulation and Optimizationmentioning

confidence: 99%

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Comparison of Separation Alternatives for Two Industrial C6–C7 Aliphatic Hydrocarbon Mixtures Including Stacked Complex Sequences

Tang

Ward

2022

Ind. Eng. Chem. Res.

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Distillation configurations are optimized and compared for two industrially relevant C6−C7 aliphatic hydrocarbon mixtures: methylcyclopentane/cyclohexane/methylcyclohexane (MCM), which is formed during the rectification of hydrocracked coal tar, and lights/methylcylopentane/cyclohexane (LMC), which is a byproduct in the manufacture of caprolactam. Design alternatives considered include conventional and complex sequences with and without column stacking (CS) and dividing-wall columns (DWCs). The results show that stacked complex sequences (SCSs) outperform DWCs in both cases, reducing cost relative to the conventional sequence by 13.1% (MCM) and 17.1% (LMC) compared with 1.7% (MCM) and 7.1% (LMC) for DWCs. This suggests that SCSs should be considered to be a strong candidate for saving energy and reducing cost in multicomponent distillation.

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