Hydrogen-rich syngas production from tobacco stem pyrolysis in an electromagnetic induction heating fluidized bed reactor.

Addressing the issues of low heating efficiency and high carbon emissions in traditional biomass pyrolysis processes, this study explores the potential of induction heating fluidized bed pyrolysis reactor (IHFBR) to enhance heating efficiency, reduce carbon emissions, and increase syngas yield during biomass pyrolysis. The effects of induction heating power (5.7–6.8 kW), carrier gas flowrate (200–800 ml/min), reaction time (2–8 min), and fluidizing medium mass (0–33.0 g) on the yield of gas, liquid, solid products from tobacco stem (TS) pyrolysis in the IHFBR are assessed. The results show IHFBR demonstrates higher syngas yield from TS pyrolysis, reaching 356.9 ml/g-TS at 700 °C and 6 min, with CO and H 2 comprising 28.5 vol% and 29.6 vol% of the total gas volume, respectively. This represents a substantial increase in syngas yield by 67.6%, 137.2%, and 526.9%, respectively, compared to conventional fluidized bed, induction and resistance furnace heating fixed beds. [Display omitted] • Induction heating fluidized bed reactor (IHFBR) is developed for biomass pyrolysis. • Tungsten rod with fast self-heating rate (9.7–20.3 °C/s) serves as induction medium. • IHFBR creates localized high-temperature zones and enhances mass/heat transfer. • IHFBR achieves lower solid and liquid yields, and higher gas and syngas yields. • IHFBR boosts syngas by 67.6%, 137.2%, and 526.9% compared to traditional methods. [ABSTRACT FROM AUTHOR]