Abstract
Abstract Substituted benzenes such as phenol, benzaldehyde, and anisole are the simplest fragments from the lignin separation feedstocks. We have collected available primary experimental results on vapour pressures, enthalpies of phase transition, and enthalpies of combustion of phenol, benzaldehyde, and anisole. The resulting data on the gas-phase standard molar enthalpies of formation were validated using the quantum chemical method G4. The consistent sets of evaluated thermodynamic data are essential for calculating the energy balances of lignin conversion in the value-added chemicals and materials. Graphic abstract
Highlights
Lignin is the most abundant polymer material that is based on aromatic units in nature
C The previously published primary vapour pressures data were recalculated in this work with the current heat capacity difference
Such an excellent agreement can be seen as the proof of the internal consistency of all three phase transitions: solid–liquid, solid–gas, and liquid–gas which were evaluated in this work
Summary
Lignin is the most abundant polymer material that is based on aromatic units in nature. We collected and evaluated available in the literature results on vapour pressures, phase transitions, and enthalpies of formation of three basic lignin building blocks: phenol, benzaldehyde, and anisole.
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