A biomass-based integrated energy system for urea and power production: Thermodynamic analysis
Year: 2024
Type: article
Abstract: The study aims to optimize the poly-generation of power and urea through the thermochemical conversion of biomass feedstock into hydrogen-rich syngas using steam gasification. This hydrogen-rich syngas serves as a crucial intermediate for producing valuable products, including power and urea. Biomass wastes such as date pits, manure, sludge, and food waste are utilized in this poly-generation process. Using Aspen Plus process modeling software, the system integrates biomass steam gasification with the cogeneration of urea and power, simulating the system's performance. A sensitivity analysis assesses the effects of carbon dioxide utilization and the power-to-urea splitting ratio on the system's overall energy and heat demands. The optimized results of the thermodynamic assessment of the integrated system demonstrate an overall energy efficiency of 52.30% and exergy efficiency of 56.40%, resulting in a power generation of 39.49 MW, a urea production rate of 2.8 kg/s, and a total steam production of 15.56 kg/s. These findings provide valuable insights for determining the optimal power ratio to urea production. • Optimal feedstock blending strategies are employed to enhance hydrogen yield. • Biomass steam gasification yields hydrogen-rich syngas for power and urea synthesis. • Aspen Plus simulation models integrated biomass gasification and cogeneration system. • Sensitivity analysis examines CO 2 utilization and power-to-urea ratio effects. • The system achieves 52.30% energy efficiency and 56.40% exergy efficiency.
Institutions: Hamad bin Khalifa University, Qatar Foundation
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,400
Award: G4532945831
OpenAlex ID: W4403632333