Integrated Dual-Production Mode Modeling and Multiobjective Optimization of an Industrial Continuous Catalytic Naphtha Reforming Process

Integrated Dual-Production Mode Modeling and Multiobjective Optimization of an Industrial Continuous Catalytic Naphtha Reforming Process

Type	Journal Article
Author	Min Wei
Author	Minglei Yang
URL	http://pubs.acs.org/doi/abs/10.1021/acs.iecr.6b00441
Volume	55
Issue	19
Pages	5714-5725
Publication	Industrial & Engineering Chemistry Research
Date	2016-05-18
Abstract	Catalytic naphtha reforming is a key process both in refineries and in the production of aromatic compounds. Unfortunately, the characteristics of dual-production modes make the process model difficult to adapt to changing production needs. Because catalytic naphtha reforming has a complicated reaction mechanism along with multiple operation variables and objectives, its optimization is a challenge. Authors present the modeling and optimization steps used to resolve these issues. A detailed continuous catalytic regenerative (CCR) reforming process model was established, integrating the reaction kinetic model, reactor model, heater model, compressor model, and separator model. On the basis of the CCR model, multiobjective optimizations were performed, and a hierarchical structure of stochastic algorithm was proposed, thus reducing computation costs during model calculations. Three multiobjective optimization problems were solved using the proposed algorithm, with these cases being based on refinery production, the production of aromatic compounds, and energy conservation.