Impact of layered and delaminated zeolites on catalytic fast pyrolysis of microalgae using fixed-bed reactor and Py-GC/MS

The aim of this work is to exploit the pyrolysis characteristics microalgae Botryococcus braunii (BB) with a medium pore framework zeolite (MCM-22) and its delaminated counterpart higher external surface area (ITQ-2) using pyrolysis-gas-chromatography-mass-spectrometry (Py-GC/MS) fixed-bed reactor. study evaluates effect synthesized zeolites that possess different size, shape acidity on promoting deoxygenation reactions producing aromatic compounds during microalgae. Further, role (layered & delaminated) for carbohydrate, protein lipid-derived formation discussed. Py-GC/MS results showed (area%) was significantly (35.17 %) (28.76 layered than non-catalytic (17.85 at catalyst/biomass ratio 10.1. increase in from 3 10 550 °C has increased aromatics (90.66 % ITQ-2 75.25 MCM-22 zeolites. In addition, produced 20.47 which attributed thinner structure makes reactants more accessible catalytic site accelerate reactions.