Thermodynamic analysis and parametric optimization of steam-CO2 based biomass gasification system using Aspen PLUS

Shruti Vikram, Pali Rosha, Sandeep Kumar and Sanjay Mahajani

Energy, 2022, vol. 241, issue C

Abstract: Energy procurement from renewable energy sources to promote carbon neutrality has gained a significant boost in recent times. The present study contributes to developing a reliable numerical model for syngas production from woody biomass with steam and CO2 as gasifying agents. Aspen PLUS process simulator was employed to investigate the critical parameters such as gasification temperature, reactions temperature, and gas agent composition on H2 and CO concentrations, CO and CO2 conversion, H2/CO ratio, and the syngas process efficiency. The gasification system's energy performance was evaluated at 900 °C. Simulation results showed that the substitution of H2O by CO2 did not significantly influence the gasification efficiency yet, enhanced the biofuel energy from the biomass, and aided in tailoring the H2/CO ratio for downstream synthesis. The replacement of H2O by CO2 can effectively generate useful syngas for downstream synthesis applications and reduce global greenhouse emissions. This data information can be beneficial to understand and optimize the overall gasification process for exploring possible utilization of CO2 without the need for laborious, high-cost, and time-consuming experimental investigation.

Keywords: Thermodynamic analysis; Steam gasification; Syngas; CO2 utilization; Chemical synthesis; H2/CO ratio (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:241:y:2022:i:c:s0360544221031030

DOI: 10.1016/j.energy.2021.122854

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