Phenomenological Decomposition Heuristic for Process Design Synthesis of Oil-Refinery Units

CATEGORY: REFINERY OPTIMIZATION 
Phenomenological Decomposition Heuristic for Process Design Synthesis of Oil-Refinery Units

Type	Journal Article
Author	Brenno C. Menezes
Author	Jeffrey D. Kelly
URL	Free Full Text Source:  http://linkinghub.elsevier.com/retrieve/pii/B9780444635761500078
Volume	37
Pages	1877-1882
Publication	Computer Aided Chemical Engineering
Date	2015
Abstract	Authors propose a mixed - integer nonlinear optimization for process design synthesis of oil - refinery units that includes crude - oil mixing , unit processing and product blending . The quantity - logic - quality phenomena involving a non - convex mixed - integer nonlinear problem is decomposed in to a two - stage stochastic programming model with complete recourse considering , in a first stage, quantity and logic variables in a mixed - integer linear model and, in a second stage, quantity and quality variables in a nonlinear programming formulation. Iteratively, nonlinear models of each demand scenario are restricted by the multi - scenario process design results. An industrial - sized example that is not solved in a full space model demonstrates authors’ tailor - made decomposition scheme , which yields within 5% gap between the first and the average second stage results.