Optimization of Lignocellulosic Waste Biorefinery using Multi-Actor Multi-Objective Mathematical Framework

Muhammad T. Ashraf, Ana I. Torres, Iwona Cybulska, Chuanji Fang, Mette H. Thomsen, Jens E. Schmidt, George Stephanopoulos

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Scopus citations


Lignocellulosic biorefineries consist of multiple processing steps that can be carried out by a single or by different actors. In the latter case, biorefineries can be decomposed into suppliers of intermediates and consumers of them. Following this decomposition, a multi-actor multi-objective optimization problem can be formulated and a two-level Lagrangian approach used to find the solution that optimizes the profit of the biorefinery. This methodology is applied here to a date palm waste biorefinery in which an organosolv process is used to produce a sugar stream; and fermentation to ethanol and succinic acid are considered to compete for the utilization of it. Results shows that at selling price of $400/t ethanol and $1500/t succinic acid, it is feasible to produce these products with an organosolv-sugar stream selling at $510/t.

Original languageEnglish (US)
Title of host publication26 European Symposium on Computer Aided Process Engineering, 2016
EditorsZdravko Kravanja, Milos Bogataj
PublisherElsevier B.V.
Number of pages6
ISBN (Print)9780444634283
StatePublished - 2016
Externally publishedYes

Publication series

NameComputer Aided Chemical Engineering


  • biorefinery
  • economic analysis
  • lignocellulosic
  • optimization

ASJC Scopus subject areas

  • General Chemical Engineering
  • Computer Science Applications


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