Optimal design of a multi-product biorefinery system

E. Zondervan, Mehboob Nawaz, André B. de Haan, John Woodley, Rafiqul Gani

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In this paper we propose a biorefinery optimization model that can be used to find the optimal processing route for the production of ethanol, butanol, succinic acid and blends of these chemicals with fossil fuel based gasoline. The approach unites transshipment models with a superstructure, resulting in a Mixed Integer Non-Linear Program (MINLP). We consider a specific problem based on a network of 72 processing steps (including different pretreatment steps, hydrolysis, fermentation, different separations and fuel blending steps) that can be used to process two different types of feedstock. Numerical results are presented for four different optimization objectives (maximize yield, minimize costs, minimize waste and minimum fixed cost), while evaluating different cases (single product and multi-product).
Original languageEnglish
JournalComputers & Chemical Engineering
Volume9
Issue number14
Pages (from-to)1752-1766
ISSN0098-1354
DOIs
Publication statusPublished - 2011

Keywords

  • Fuel blends
  • Biorefinery
  • Mixed-Integer Non-Linear Program (MINLP)
  • Biomass
  • Butanol
  • Succinic acid
  • Optimization
  • Ethanol

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