Integrating pinch analysis and process simulation within equation-oriented simulators

Autor(es)

Elias, Andrew Milli ^[1] ; Giordano, Roberto de Campos ^{[2, 1]} ; Secchi, Argimiro Resende ^[3] ; Furlan, Felipe Fernando ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos UFSCar, Chem Engn Grad Program, Rodovia Washington Luis, SP 310, Km 235, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Sao Carlos UFSCar, Dept Chem Engn, Rodovia Washington Luis, SP 310, Km 235, BR-13565905 Sao Carlos, SP - Brazil

^[3] Univ Fed Rio de Janeiro, COPPE, Chem Engn Grad Program, BR-21941972 Rio De Janeiro, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Computers & Chemical Engineering; v. 130, NOV 2 2019.
• Citações Web of Science: 0

Resumo

Process integration techniques may increase productivity and profitability while, at the same time, reducing environmental impacts. In this work, pinch analysis (one of the most popular energy-integration methodologies) was integrated into an equation-oriented simulator, providing energy integration in simulation time, without an external convergence loop. Based on four case studies, pinch analysis was showed to overestimate the optimal total annual cost within a maximum deviation of 10.7%, compared to superstructure-based optimization approaches, providing a near-optimal solution. This is well suited for the initial stages of process synthesis, where only rough estimates of process costs are sought. The methodology was also applied to a bioethanol biorefinery, containing more than 27,000 variables. Energy integration reduced steam consumption by up to 12.8%, increasing plant productivity. An additional advantage of the integrated pinch analysis is that it increased the robustness to the process simulation, by replacing heat exchangers by the pinch formulae. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas
• Beneficiário: Roberto de Campos Giordano
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático