SCI和EI收录∣中国化工学会会刊

›› 2010, Vol. 18 ›› Issue (6): 914-922.

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Energy and Water Optimization in Biofuel Plants

Ignacio E. Grossmann, Mariano Martín   

  1. Center for Advanced Process Decision-making, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
  • 收稿日期:2010-06-24 修回日期:2010-07-19 出版日期:2010-12-28 发布日期:2010-12-28
  • 通讯作者: Ignacio E. Grossmann, E-mail: grossmann@cmu.edu

Energy and Water Optimization in Biofuel Plants

Ignacio E. Grossmann, Mariano Martín   

  1. Center for Advanced Process Decision-making, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
  • Received:2010-06-24 Revised:2010-07-19 Online:2010-12-28 Published:2010-12-28

摘要: In this paper we address the topic of energy and water optimization in the production of bioethanol from corn and switchgrass. We show that in order for these manufacturing processes to be attractive,there is a need to go beyond traditional heat integration and water recycling techniques. Thus,we propose a strategy based on mathematical programming techniques to model and optimize the structure of the processes,and perform heat integration including the use of multi-effect distillation columns and integrated water networks to show that the energy efficiency and water consumption in bioethanol plants can be significantly improved. Specifically,under some circumstances energy can even be produced and the water consumption can be reduced below the values required for the production of gasoline.

关键词: bioethanol, water networks, energy optimization, mathematical programming

Abstract: In this paper we address the topic of energy and water optimization in the production of bioethanol from corn and switchgrass. We show that in order for these manufacturing processes to be attractive,there is a need to go beyond traditional heat integration and water recycling techniques. Thus,we propose a strategy based on mathematical programming techniques to model and optimize the structure of the processes,and perform heat integration including the use of multi-effect distillation columns and integrated water networks to show that the energy efficiency and water consumption in bioethanol plants can be significantly improved. Specifically,under some circumstances energy can even be produced and the water consumption can be reduced below the values required for the production of gasoline.

Key words: bioethanol, water networks, energy optimization, mathematical programming