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De Bruycker R.,Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 9149052Gent Belgium | Pyl S.P.,Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 9149052Gent Belgium | Reyniers M.-F.,Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 9149052Gent Belgium | Van Geem K.M.,Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 9149052Gent Belgium | Marin G.B.,Laboratory for Chemical TechnologyGhent UniversityTechnologiepark 9149052Gent Belgium
AIChE Journal | Year: 2015

A tool for the generation of decomposition schemes of large molecules has been developed. These decomposition schemes contain radicals which can be eliminated from the model equations if both the μ-hypothesis and the pseudosteady-state approximation are valid. The reaction rate coefficients and thermodynamic parameters have been calculated by incorporating a comprehensive group additive framework. A microkinetic model for the pyrolysis of methyl esters with a carbon number of up to 19 has been generated using this tool. It is validated by comparing calculated and experimental yields of the pyrolysis of methyl decanoate and novel rapeseed methyl ester pyrolysis data in the temperature range from 800 to 1100 K and methyl ester partial pressure range from 1 × 10-3 to 1 × 10-2 MPa. This modeling frame work allows to not only assess the use of methyl ester mixtures as potential feedstock for olefin production but also their effect as blend-in or trace impurity. © 2015 American Institute of Chemical Engineers. Source

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