Problems in Aspen simulation of biomass pyrolysis

Thread Content

I mainly intend to use Aspen to simulate the slow pyrolysis of biomass; after reviewing numerous studies, I decided to use the Powerlaw kinetic equation for pyrolysis along with the RBatch module for simulation. It’s been stuck for several days now due to two main issues; the files are attached below. The current problems can be divided into two categories: 1. The physical properties used in this simulation were entered based on relatively authoritative literature, yet the property analysis often throws warnings about missing properties; as shown in the figure below. Various methods have been tried across the internet without success. I would like to ask if any experts have a solution. 2. During the process simulation, after the feed is introduced, it enters the RBatch reactor for reaction, but no reaction occurs. I think the reaction not taking place might be due to an issue with the settings of the active phase in the reactor and the reactant phase, but even after continuously changing these two options, the reaction still does not occur. So I’d like to ask the experts: what’s the problem?