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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Integrating pinch analysis and process simulation within equation-oriented simulators

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Author(s):
Elias, Andrew Milli [1] ; Giordano, Roberto de Campos [2, 1] ; Secchi, Argimiro Resende [3] ; Furlan, Felipe Fernando [2]
Total Authors: 4
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: Computers & Chemical Engineering; v. 130, NOV 2 2019.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants