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Process synthesis and controllability assessment of CO2 capture plants in a parallel environment

Vasilas, Nikolaos; Natsiavas, Panagiotis; Papadopoulos, Athanasios; Seferlis, Panos


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{
  "description": "<p>The objective of this work is to develop, implement and evaluate a parallel computational framework for the simultaneous process synthesis and controllability assessment of absorption/desorption processes for postcombustion CO2 capture. The framework employs a stochastic optimisation algorithm which is able to handle efficiently discrete design variables, pertaining to process flowsheet structural features represented through a generic superstructure. The discrete design parameters are introduced iteratively into a deterministic optimisation algorithm which is efficient for continuous design variables and operates internally within the stochastic algorithm. Every solution obtained by the continuous algorithm is transferred into a controllability assessment stage, implemented in the form of a non-linear sensitivity analysis approach which evaluates the effect of disturbances within an optimum control scheme. This layout is realized within a synchronous, parallel realization of a Simulated Annealing algorithm, where the primal-dual interior-point optimisation algorithm, as implemented by the Interior Point Optimizer (IPOPT) software, is used for steady-state process design and the predictor-corrector homotopy-continuation algorithm, using the PITCON software, for controllability assessment. The obtained results show that the parallelisation scheme is computationally very efficient and the obtained solution is 52 % better in terms of overall performance than a corresponding, conventional sequential process design and control approach.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Centre for Research and Technology Hellas (CERTH)", 
      "@type": "Person", 
      "name": "Vasilas, Nikolaos"
    }, 
    {
      "affiliation": "Centre for Research and Technology Hellas (CERTH)", 
      "@type": "Person", 
      "name": "Natsiavas, Panagiotis"
    }, 
    {
      "affiliation": "Centre for Research and Technology Hellas (CERTH)", 
      "@type": "Person", 
      "name": "Papadopoulos, Athanasios"
    }, 
    {
      "affiliation": "Aristotle University of Thessaloniki", 
      "@type": "Person", 
      "name": "Seferlis, Panos"
    }
  ], 
  "headline": "Process synthesis and controllability assessment of CO2 capture plants in a parallel environment", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2020-07-14", 
  "url": "https://zenodo.org/record/3943723", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.3943723", 
  "@id": "https://doi.org/10.5281/zenodo.3943723", 
  "@type": "ScholarlyArticle", 
  "name": "Process synthesis and controllability assessment of CO2 capture plants in a parallel environment"
}
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