A Multiobjective Optimization Including Results of Life Cycle Assessment in Developing Biorenewables-Based Processes

Daniel Helmdach, Polina Yaseneva, Parminder K. Heer, Artur M. Schweidtmann, Alexei A. Lapkin*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)

Abstract

A decision support tool has been developed that uses global multiobjective optimization based on 1) the environmental impacts, evaluated within the framework of full life cycle assessment; and 2) process costs, evaluated by using rigorous process models. This approach is particularly useful in developing biorenewable-based energy solutions and chemicals manufacturing, for which multiple criteria must be evaluated and optimization-based decision-making processes are particularly attractive. The framework is demonstrated by using a case study of the conversion of terpenes derived from biowaste feedstocks into reactive intermediates. A two-step chemical conversion/separation sequence was implemented as a rigorous process model and combined with a life cycle model. A life cycle inventory for crude sulfate turpentine was developed, as well as a conceptual process of its separation into pure terpene feedstocks. The performed single- and multiobjective optimizations demonstrate the functionality of the optimization-based process development and illustrate the approach. The most significant advance is the ability to perform multiobjective global optimization, resulting in identification of a region of Pareto-optimal solutions.

Original languageEnglish
Pages (from-to)3632-3643
JournalChemSusChem
Volume10
Issue number18
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • biomass
  • circular economy
  • life cycle assessments
  • multiobjective optimization
  • process modeling

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