A flexible framework for optimal biorefinery product allocation

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Abstract
The integrated biorefinery has the opportunity to provide a strong, self‐dependent, sustainable alternative for the production of bulk and fine chemicals, e.g., polymers, fiber composites and pharmaceuticals as well as energy, liquid fuels, and hydrogen. Although most of the fundamental processing steps involved in biorefining are well‐known, there is a need for a methodology capable of evaluating the integrated processes in order to identify the optimal set of products and the best route for producing them. The complexity of the product allocation problem for such processing facilities demands a process systems engineering approach utilizing process integration and mathematical optimization techniques to ensure a targeted approach and serve as an interface between simulation work and experimental efforts. The objective of this work is to assist the bioprocessing industries in evaluating the profitability of different possible production routes and product portfolios while maximizing stakeholder value through global optimization of the supply chain. To meet these ends, a mathematical optimization based framework is being developed, which enables the inclusion of profitability measures and other technoeconomic metrics along with process insights obtained from experimental as well as modeling and simulation studies. © 2007 American Institute of Chemical Engineers Environ Prog, 2007

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