Derivative-Free Optimization of a Fixed-Bed Methanol Synthesis Reactor

OBUT S.

CHEMICAL ENGINEERING & TECHNOLOGY, vol.44, no.10, pp.1830-1839, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 10
  • Publication Date: 2021
  • Doi Number: 10.1002/ceat.202100165
  • Journal Name: CHEMICAL ENGINEERING & TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1830-1839
  • Keywords: Carbon conversion, Constrained optimization, Derivative-free optimization, Fixed-bed reactor, Methanol synthesis, FLUID DISPERSION COEFFICIENTS, EFFICIENT GLOBAL OPTIMIZATION, DYNAMIC OPTIMIZATION, PACKED-BEDS, MASS, THERMODYNAMICS, TEMPERATURE, LIMITATIONS, CONVERSION, DIFFUSION
  • Yıldız Technical University Affiliated: Yes

Abstract

A one-dimensional heterogeneous fixed-bed methanol synthesis reactor model was developed for the optimization of carbon conversion and rate of methanol production. The developed model was validated both at pellet and reactor scales. The reactor inlet syngas composition and cooling water temperature, i.e., the design variables, providing the highest carbon conversion and rate of methanol production were determined by a constrained derivative-free optimization algorithm. The results revealed that after optimization the carbon conversion was increased by 12 % and the rate of methanol production by 48 %. Under the optimized conditions, the stoichiometric number was in the range of industrial values.