![]() Another approach used by many authors, is the âlumpingâ of species, where different species are grouped by families ( Chen et al., 2011 Korsten and Hoffmann, 1996). ![]() A feed characterization step is required to obtain a representative feed composition in terms of these pseudo-components.Ī traditional approach to face this task is by defining a set of pseudo-compounds generated from a true boiling point distillation curve as described in ( Kaes, 2000). Instead, pseudo or hypothetical compounds are defined, which are taken as a basis to represent the feed. In the case of refinery reactors such as light-medium cuts hydrotreating reactors, since the feed is a mixture of hundreds (or even thousand) of compounds, not all compounds can be considered explicitly. Frequently, detailed studies are required in order to operate at optimal conditions and/or to design new plants, where a rigorous steady state reactor model becomes an imperative tool to face these process engineering tasks ( Korsten and Hoffmann, 1996 Chen et al., 2011 Murali et al., 2007). ![]() Hydrotreating is a process widely used in the petroleum industry for producing high quality fuels and as part of a scheme for upgrading heavy crude oil by reducing sulfur, nitrogen and/or metal content ( Chen et al., 2011). Arévalo, in Computer Aided Chemical Engineering, 2015 1 Introduction 12th International Symposium on Process Systems Engineering and 25th European Symposium on Computer Aided Process EngineeringĬésar G.
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