Abstract
We propose two optimization models for designing two liquid extraction systems: simple multistage liquid extractors and extractors with extract reflux. Both models are motivated by the concepts of the modified McCabe-Thiele graphical method for multistage extractor design. The operating and equilibrium curves in the McCabe-Thiele method are represented by material balances and piece-wise linearized thermodynamics properties. The use of piece-wise approximations improves computational tractability of both optimization models. In addition, we consider some extensions such as dilute systems, insoluble solvents, and non-ideal stages. The applicability of the proposed models is demonstrated with four illustrative examples.
Original language | English (US) |
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Article number | 107126 |
Journal | Computers and Chemical Engineering |
Volume | 143 |
DOIs | |
State | Published - Dec 5 2020 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemical Engineering
- Computer Science Applications
Keywords
- Mixed integer nonlinear programing
- Process optimization
- Process synthesis
- Separations