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Single-event kinetic modeling of the hydrocracking of hydrogenated vacuum gas oil

The primary objective of the research project was to further develop a computer program
modeling the hydrocracking of partially hydrogenated vacuum gas oil (HVGO), and to use the
model to compare the theoretical product distribution to experimental data describing the product
distribution of an industrial pilot reactor. The hydrocracking of HVGO on acid zeolites is
effectively modeled utilizing a single-event kinetic approach developed by Froment and
coworkers. The hydrocracking of HVGO can be described in terms of the fundamental reaction
steps involving carbenium ions. Some 45 single-event rate parameters are used to dictate the rate
of each single-event in the reaction network. The composition of the partially hydrogenated
feed stock is detailed up to C33. Each component and lump is considered in terms of the
elementary steps to generate a network of continuity equations and single-event rate parameters.
A reactor model comprising this kinetic model can be used to simulate the isothermal and nonisothermal
hydrocracking of a HVGO feed stock. The results are represented in terms of the
yields of 241 lumps and components in the gas phase and 241 components and lumps in the
liquid phase. The predicted yields of various commercial oil fractions and particular components
are then compared to experimental data from an industrial pilot reactor to verify the accuracy of
the model and the single-event rate parameters.

Identiferoai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/4757
Date25 April 2007
CreatorsErtas, Alper T.
ContributorsFroment, Gilbert F.
PublisherTexas A&M University
Source SetsTexas A and M University
Languageen_US
Detected LanguageEnglish
TypeBook, Thesis, Electronic Thesis, text
Format941106 bytes, electronic, application/pdf, born digital

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