Thermodynamic Evaluation of the Intermediate Liquid Compounds (ILC) from Biomass Fast Pyrolysis

Biomass fast pyrolysis process is a technology that converts renewable solids into dense liquid. This study aims to apprehend the thermodynamic behaviour of Intermediate Liquid Compounds (ILCs) observed during biomass pyrolysis. The system studied was closed (20 mL) with air and mixture solution five components (Acetic acid (AA), hydroxyacetone (HX), phenol; furfural (FF) methanol) at 90°C under atmospheric pressure. flash calculation conducted given temperature vapor-liquid equilibrium compositions were determined combining equation state activity coefficient models, Soave-Redlich-Kwong (SRK) coupled Modified Huron-Vidal (MHV2) mixing rules incorporating UNIversal Functionnal Activity Coefficient (UNIFAC) model. Theoretical calculations experimentally validated by using Head-Space GC-MS system. A quantitative agreement between simulated measured concentrations in liquid phase achieved this combined state-predictive model SRK-MHV2-UNIFAC model; thus, confirming it accounts well for nonidealities.