A novel framework for simultaneous separation process and product design

Eden, Mario R.; Jørgensen, Sten Bay; Gani, Rafiqul; El‐Halwagi, Mahmoud M.

doi:10.1016/j.cep.2003.03.002

Cited by 173 publications

(92 citation statements)

References 5 publications

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“…Equation 11 indicates that y 1 lies on the line joining x s and d. This is illustrated in Figure 3 for a representative ternary phase diagram for CO 2 . This may be inferred by rearranging Eq.…”

Section: Test 2: Separation Feasibility Testmentioning

confidence: 99%

“…z 1 was set at 0.9 in this study, where the required purity y p ranges from 0.97 to 0.99 assuming the liquid Figure 6. Four types of ternary phase diagrams for a product (1), solute (2), and solvent (3) at constant pressure and temperature.…”

Section: Appendix Cmentioning

confidence: 99%

“…Traditionally, the selection of processing materials and the design of the process (flow sheet, unit sizes, operating conditions) have been approached sequentially, 2 although, material and process decisions are in fact interdependent. 2,3 Choosing a processing material based on a few desirable physicochemical properties, in isolation from process performance considerations, can thus lead to poor decisions: for example, a solvent that exhibits high solubility and selectivity for the solute of interest may be too expensive to regenerate, compromising the economic viability of the process. Instead, a process-wide evaluation of the material is essential to identify choices that lead to better, or even optimal, process performance metrics such as reduced cost and environmental impact.…”

Section: Introductionmentioning

confidence: 99%

“…Another way to develop a continuous optimization formulation at the process level is to optimize process performance in the space of molecular properties or descriptors in a first stage, leaving the identification of the optimal molecule or molecular structure for a second stage. In this vein, Eden et al 2 proposed the formulation of a continuous process design problem to identify physical property targets, that is, the values of the properties that give the best process performance. The concept of a "property cluster" was used to reduce the dimensionality of the problem.…”

Section: Introductionmentioning

confidence: 99%

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Outer approximation algorithm with physical domain reduction for computer‐aided molecular and separation process design

et al. 2016

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Integrated approaches to the design of separation systems based on computer-aided molecular and process design (CAMPD) can yield an optimal solvent structure and process conditions. The underlying design problem, however, is a challenging mixed integer nonlinear problem, prone to convergence failure as a result of the strong and nonlinear interactions between solvent and process. To facilitate the solution of this problem, a modified outer-approximation (OA) algorithm is proposed. Tests that remove infeasible regions from both the process and molecular domains are embedded within the OA framework. Four tests are developed to remove subdomains where constraints on phase behavior that are implicit in process models or explicit process (design) constraints are violated. The algorithm is applied to three case studies relating to the separation of methane and carbon dioxide at high pressure. The process model is highly nonlinear, and includes mass and energy balances as well as phase equilibrium relations and physical property models based on a group-contribution version of the statistical associating fluid theory (SAFT-c Mie) and on the GC 1 group contribution method for some pure component properties. A fully automated implementation of the proposed approach is found to converge successfully to a local solution in 30 problem instances. The results highlight the extent to which optimal solvent and process conditions are interrelated and dependent on process specifications and constraints. The robustness of the CAMPD algorithm makes it possible to adopt higher-fidelity nonlinear models in molecular and process design.

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Section: Test 2: Separation Feasibility Testmentioning

confidence: 99%

Section: Appendix Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Outer approximation algorithm with physical domain reduction for computer‐aided molecular and separation process design

et al. 2016

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“…Similar methods are discussed under product property clustering by Solvason et al [129], where product design is utilized in developing integrated product-process synthesis systems. Several methods have been presented [130][131][132] that use the property clustering techniques by targeting product property values that yield optimal process performance. Once the target properties are deduced, products are generated that satisfy these.…”

Section: Detailed Economicsmentioning

confidence: 99%

Perspectives on Resource Recovery from Bio-Based Production Processes: From Concept to Implementation

Udugama

Mansouri

Mitić³

et al. 2017

Processes

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Abstract:Recovering valuable compounds from waste streams of bio-based production processes is in line with the circular economy paradigm, and is achievable by implementing "simple-to-use" and well-established process separation technologies. Such solutions are acceptable from industrial, economic and environmental points of view, implying relatively easy future implementation on pilot-and full-scale levels in the bio-based industry. Reviewing such technologies is therefore the focus here. Considerations about technology readiness level (TRL) and Net Present Value (NPV) are included in the review, since TRL and NPV contribute significantly to the techno-economic evaluation of future and promising process solutions. Based on the present review, a qualitative guideline for resource recovery from bio-based production processes is proposed. Finally, future approaches and perspectives toward identification and implementation of suitable resource recovery units for bio-based production processes are discussed.

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Process Synthesis and Integration

El‐Halwagi

Foo

2014

Kirk-Othmer Encyclopedia of Chemical Technology

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Process synthesis is a key design activity which focuses on the generation of alternatives for creating new processes or retrofitting existing ones. It is closely tied to process integration which is a holistic approach to design and operation which focuses on the unity of the process . This article provides a brief overview of process synthesis and integration. The focus is on key concepts, tools, and applications. The discussion is organized over classes of problems. First, the synthesis of energy systems is discussed with emphasis on the thermal pinch analysis for the conservation of heat through the integration of process hot and cold streams. Next, the material recovery pinch diagram is presented as a basis for reducing the use of fresh resources and the discharge of waste materials through reuse and recycle. Then, the field of process network synthesis is briefly reviewed. Moving to reactive systems, the topics of reaction pathways synthesis, attainable reaction regions, and reactor network synthesis are discussed. The chapter concludes with a discussion of the simultaneous process and molecular design.

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A novel framework for simultaneous separation process and product design

Cited by 173 publications

References 5 publications

Outer approximation algorithm with physical domain reduction for computer‐aided molecular and separation process design

Outer approximation algorithm with physical domain reduction for computer‐aided molecular and separation process design

Perspectives on Resource Recovery from Bio-Based Production Processes: From Concept to Implementation

Process Synthesis and Integration

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