Comparative study of zeolites matrices in bio-wastes pyrolytic valorization

PIERELLA, LILIANA B.; FERMANELLI, CARLA S.; SAUX, CLARA

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

INST CHEMICAL ENGINEERS

Año: 2021 vol. 147 p. 808 - 817

0957-5820

Considering the importance of bio-wastes thermo-chemical conversion to fuel and platform molecules, three types of zeolites (ZSM-5, Beta and Y) were tested as heterogeneous catalysts. Peanut shell is a high volume agricultural waste. Its pyrolysis mediated by different catalysts was evaluated. The effect of the zeolite matrix over the bio-oil yield and products selectivities was carefully considered. Fresh and used materials were widely characterized by XRD, FTIR, ICP and BET techniques. Pyrolysis reactions were done at 500 °C under N2 flow. The use of zeolites in biomass pyrolysis showed interesting results in terms of bio-oil composition. When H-ZSM-5 catalyst was employed, higher bio-oil yields and greater concentration of aromatic hydrocarbons and furans were obtained.