Modeling of thermodynamics for hydrogenation of pyrolysis oil
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School of Chemical Engineering |
Master's thesis
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Date
2011
Department
Major/Subject
Teknillinen kemia
Mcode
Kem-40
Degree programme
Language
en
Pages
viii + 57 + [28]
Series
Abstract
This master's thesis is an investigation of a suitable thermodynamic model for the vapor-liquid equilibrium of binary and ternary mixtures of hydrodeoxygenation of pyrolysis oil. The selected investigative equations of state were PSRK and API-SRK. Of API-SRK two different types of models were examined, namely as the BIPs (binary interaction parameters) were set to zero and by fitted BIPs. Furthermore extrapolations of the original experimental measurements were made by PSRK. The simulations were made by VLEfit -software. Pyrolysis oil components included in the work were partly predetermined pseudo components. In addition product components and other suitable components for the hydrodeoxygenation of pyrolysis oil were selected. Superior models in the simulations were PSRK and the API-SRK (with fitted BIPs) that modelled equally well. API-SRK with BIPs set to zero gave poor results. Extrapolations gave fairly good results. Mixtures containing light gases (hydrogen, methane and carbon dioxide) gave in general the biggest errors.Description
Supervisor
Krause, OutiThesis advisor
Keskinen, KariKuosmanen, Janne
Keywords
vapor-liquid equilibria, gas-vätska jämvikt, equation of state, tillståndsekvation, PSRK, PSRK, API-SRK, API-SRK, pyrolysis oil, pyrolys olja, hydrogenation, hydrering