Publication details

Title A water saving methodology for the efficient development of biorefineries
Document Type Article
Year 2012
Authors Nikolakopoulos, A., Karagiannakis, P., Galanis, A., Kokossis, A.
Source Computer Aided Chemical Engineering, vol.30, p.7-10
Keywords Biorefineries; Mathematical modeling; Relative residuals; Water integration
Abstract The paper addresses the complexities of biorefinery models in regards of minimizing water consumption, and offers paradigms of integration between mathematical programming methods and Water Pinch Analysis. In a new framework the Relative Residual Analysis (RRA) is introduced as a targeting tool of enhanced precision. Integrated water network designs are driven by RRA and accomplished through optimization of superstructure models (SM). The approach is illustrated through a water minimization problem in a real life bio-refinery, and mathematical formulations take the form of MILP and NLP models. Water targets report ∼18 % savings of use in the case of re-use, and ∼58% in the case of recycle-regeneration. © 2012 Elsevier B.V.
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