Influence of the Increase of Hydrogen and Oxygen in the Minimum Formula of Saccharum Spontaneum Energy Cane Biomass and Its Effects on the Yield of Pyrolysis Products in a National Process Simulator (dwsim)
Year: 2025
Type: article
Abstract: This work aims to evaluate the influence of hydrogen and oxygen increase in the minimum formula of the energy cane Saccharum spontaneum on the pyrolysis products at 450 C and 40 bar, to achieve a greater bio-oil yield. This work adopted DWSIM 6.4.9 with a stoichiometric reactor and a minimum formula for the biomass (CH1.75O0.84). The simulations considered the sub-index varying individually between 1.0-5.0 for hydrogen, and between 0.5-2.5 for oxygen, with increments of 1.0 and 0.5, increasing its molar mass between 26.44 g/mol-30.44 g/mol and 21.75 g/mol-53.75 g/mol, respectively. By varying hydrogen, liquid yields increased (51.79%-53.57%), gas yields decreased (32.20%-29.46%), and solid yields remained practically constant (26.01%-26.97%). Regarding the oxygen, gases decreased (36.66%-21.42%) and solids and liquids increased more significantly (24.61%-30.62% and 48.73%-57.96%). Finally, the oxygen increment in the biomass lowered CO and CO2 fractions (1.38-0.53 and 0.88-0.33) kg/h, respectively, and the presence of water-gas shift reaction increased CO2 fraction (0.04-0.08).
Authors: T. R. Oliveira, A. C. L. Lisboa
Institution: Universidade Estadual de Campinas (UNICAMP)
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415031331
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