Sep 2026· Brazilian Journal of Chemical Engineering· 0 citations· 31 references
Abstract
The increasing demand for renewable energy has driven Brazil to expand its production from biomass sources, with pyrolysis emerging as a key technology. Despite advances, the detailed understanding of particle flow, heat, and mass transfer during biomass pyrolysis remains limited. This study investigates the influence of operational parameters on the pyrolysis of sugarcane bagasse in a spouted bed reactor through numerical modeling. A CFD model based on the Eulerian-Lagrangian approach was developed and implemented in OpenFOAM. Single-particle pyrolysis and inert bed simulations were performed to validate the model against experimental data from the literature. Subsequently, a 2
K
factorial design was employed to assess the effects of temperature, gas velocity, and particle diameter. Results revealed that temperature and particle size strongly affect pyrolysis kinetics, with the optimized condition (873 K, 142 m/s, particle diameter of 1.0 × 10⁻³ m) achieving a conversion efficiency of 71.56%. This work provides insights for the optimization of spouted bed reactors for efficient biomass pyrolysis.
Pyrolysis offers a promising route for recovering liquid hydrocarbons from difficult-to-recycle polyolefin waste; however, small-scale reactor studies can provide incomplete assessment when reported oil production is not considered together with the thermal energy required to heat the feedstock, reactor hardware, and c...
Junaidi Amat Husin, Mukhlis Abdul Rahman, Muhammad Irwanto et al.· Journal of Engineering Techn...· 0 citations
Pyrolysis of waste tires for oil production is an effective approach for resource utilization. To optimize the process parameters of fixed-bed pyrolysis of waste tires and clarify the product characteristics, this study employed a fixed-bed electric heating system to conduct pyrolysis experiments on waste tire chunks u...
Abstract A factorial parametric approach based on CFD simulations was employed in this study to systematically analyze a chemical looping combustion system using two-dimensional numerical modeling. This methodology made it possible to identify the operating conditions that enhance the conversion of fuel gases and the i...
F. A. Ocampo-Vaca, Martha Fabiola Silva-Rojas, Rafael Maya-Yescas et al.· International journal of Che...· 0 citations
Asbuton (Buton asphalt) is an Indonesian natural resource containing bitumen with potential for conversion into alternative liquid fuel through pyrolysis. This study investigated the effects of pyrolysis temperature, Asbuton feed mass, and FeNi/TiO₂ green nanocatalyst mass on oil yield and determined the optimum operat...
R. Y. Parapat, Elsa Tenrilawa Nasution, Lastri Meiwiyanti et al.· Indonesian Journal of Multid...· 0 citations
Abstract A well-studied method of producing biofuels from biomass is pyrolysis, or thermal decomposition in the absence of oxygen. Bio-oil yield is maximized by fast heating rates, short vapor residence times, and temperatures at or above 500 °C. A typical feeding mechanism for pyrolysis reactors is a lock hopper follo...
Jessie E. Troxler, Jonathan J. Stickel, Joseph R. Samaniuk· Transport Phenomena· 0 citations
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