Following discussions between Fluor and PNNL, it was decided to use PNNL’s biomass technology as the process case. For the Aspen Properties mode 39 components representing biomass conversion were chosen.
Investigation of thermodynamic property packages used for the existing hydrothermal liquefaction (HTL) Aspen model provided mass and energy balances for high-level techno-economic analysis of biofuel processes being developed at PNNL.
Fluor was able to demonstrate:
- Property patterns to develop reliable and accurate databases of physical properties.
- The value of the Margules-based perturbation approach to quantitatively relate property uncertainties to design uncertainties.