Conversion and rate behavior of brown macroalgae in pyrolysis: Detailed effects of operating parameters

Non-catalytic pyrolysis of brown macroalgae (Padina sp.) was studied in a batch reactor at temperature ranges 400–600 °C and 10–90 min reaction times on the product distribution conversion rate behavior. The highest pyro-oil pyro-gas yields were obtained 600 °C, which reached 67 wt% 27 wt%, respectively, when prolonged (30–90 min). In addition, high resulted more generations heavy tar considerable enhancement aromatization degree. N-aromatic groups phenol observed from 500 respectively. Tar yield increased with temperature, reflecting an order greater than one for production. constant formation found to be 0.0013/s 400 °C; 0.0023/s 0.0033/s being higher (1.25). These findings highlighted that proposed model could used accurately predict process's