Taylor & Francis Group
Browse
gcec_a_1613230_sm1743.docx (60.35 kB)

Surrogate-model-based, particle swarm optimization, and genetic algorithm techniques applied to the multiobjective operational problem of the fluid catalytic cracking process

Download (60.35 kB)
Version 2 2020-03-17, 13:28
Version 1 2019-05-28, 13:14
journal contribution
posted on 2020-03-17, 13:28 authored by José F. Cuadros Bohorquez, Laura Plazas Tovar, Maria Regina Wolf Maciel, Delba C. Melo, Rubens Maciel Filho

This article provides a concise multiobjective optimization methodology for an industrial fluid catalytic cracking unit (FCCU) considering stochastic optimization techniques, genetic algorithms (GA) and particle swarm optimization (PSO), based on surrogates or meta-models in order to approximate the objective function. A FCCU was considered and simulated in an AspenONE process simulator. In addition the article examines the claim that PSO has the same effectiveness (finding the optimal global solution) as GA, but with significantly better computational efficiency (fewer function evaluations). The optimization results obtained with the PSO technique, based on the evaluation of less functions and adjustment of less parameters, showed a 3% increase in yield of naphtha as compared to results obtained with the GA technique. Finally, the results of the optimization obtained with the stochastic optimization techniques were compared and analyzed with a deterministic one. The performance targets of the multiobjective operational optimization supported the FCCU design and production planning to ensure refinery profitability and a regulatory environment.

Funding

This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico under Grant No. 143241/2008-7.

History