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Title: Development of a Thermophysical Properties Model for Flowsheet Simulation of Biomass Pyrolysis Processes

Journal Article · · ACS Sustainable Chemistry & Engineering
ORCiD logo [1];  [2]; ORCiD logo [2]
  1. Savannah River National Lab, Aiken, SC (United States)
  2. Texas Tech Univ., Lubbock, TX (United States)
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A properties model was developed for use in commercial process simulators to model pyrolysis of lignocellulosic biomass. The component list was chosen to enable process simulations based on a recently published lumped pyrolysis kinetics model. Since many of the compounds involved in pyrolysis are not found in simulator databanks, estimation based on available literature data was used to establish missing parameters. Standard solid enthalpy of formation, solid heat capacity, and solid density estimates calculated from the limited experimental data available were prepared for six biomass constituents and nine intermediate and end-products of their pyrolysis. Ideal gas enthalpy of formation and heat capacity, critical property, and vapor pressure estimates were prepared for another four pyrolysis end-products and one biomass component. The estimates were all validated against the closest available experimental data in the literature. The addition of these new components and properties allows thermodynamically rigorous simulation of lumped biomass pyrolysis reactions with accurate energy balances. Furthermore enthalpies of reaction calculated from the properties model were compared with reported reaction enthalpies for the same lumped biomass pyrolysis reactions and found to be in general agreement.

Research Organization:
RAPID Manufacturing Institute, New York, NY (United States); Savannah River Site (SRS), Aiken, SC (United States); Savannah River National Laboratory (SRNL), Aiken, SC (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0007888; AC09-08SR22470
OSTI ID:
1642083
Alternate ID(s):
OSTI ID: 1513688
Report Number(s):
SRNL-STI-2019-00182
Journal Information:
ACS Sustainable Chemistry & Engineering, Vol. 7, Issue 9; ISSN 2168-0485
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (1)

A rigorous process modeling methodology for biomass fast pyrolysis with an entrained‐flow reactor journal August 2019

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Biomass pyrolysis
thermophysical property parameters
property estimation
pyrolysis reaction enthalpy
pyrolysis process flowsheet simulation