Simultaneous process synthesis, heat and power integration in a sustainable integrated biorefinery

Rex T. L. Ng, Douglas H. S. Tay, Denny K. S. Ng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


An integrated biorefinery is a processing facility that converts biomass feedstocks into a wide range of value added products (e.g., biofuels, specialty chemicals) via multiple technologies. To synthesize a sustainable integrated biorefinery, consumption of energy within such biorefinery should be self-sustained. The performances of integrated biorefinery can be improved via simultaneous process synthesis, heat and power integration. Due to the complexity of the process synthesis and integration problem, there is a need for a systematic approach to address the problem. In this work, the modular optimization approach, which breaks a large optimization problem into small models, is adapted to solve the complex problem. This allows engineers to 'zoom in' on specific key process units in a smaller model. Based on the proposed approach, selection of the optimum process alternatives/technologies and products, as well as integration of heat and power between process units, can be performed simultaneously. To illustrate the capability of proposed approach, two case studies are solved.

Original languageEnglish
Pages (from-to)7316-7330
Number of pages15
JournalEnergy and Fuels
Issue number12
Publication statusPublished - 20 Dec 2012

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology


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