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Advanced utilization of urban sewage sludge for low-carbon hydrogen and power production in steel manufacturing

Bararzadeh Ledari, M ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.1016/j.enconman.2024.118657
  3. Publisher: 2024
  4. Abstract:
  5. The study presents a comprehensive analysis of utilizing urban sewage sludge for low-carbon hydrogen and power production in steel manufacturing. Focusing on biomass gasification and anaerobic digestion, it evaluates the efficiency of various technologies. Key findings include the effectiveness of micro turbines with scrubbing and Stirling Motors with PSA for simultaneous heat and power generation, achieving output powers of 1081.44 kW and 1167.74 kW, and annual electricity generations of 9.45 GWh and 10.20 GWh, respectively. For hydrogen and synthesis gas production, the PSA (Pressure Swing Adsorption) technology showed a volumetric flow rate of 14315.23/day and a mass flow rate of 862.4 kg/h for hydrogen, indicating high efficiency. Economic analysis revealed the microturbine with PSA unit as the most cost-effective, due to lower biogas upgrading costs and higher electricity sales profitability, and gasification technology for hydrogen generation technology. This research underscores the potential of sewage sludge in sustainable hydrogen production, aligning with environmental goals and industrial needs. © 2024 Elsevier Ltd
  6. Keywords:
  7. Gasification technology ; Sewage sludge management ; Sustainable energy conversion ; Waste-to-energy technologies ; Anaerobic digestion ; Cost effectiveness ; Economic analysis ; Gasification ; Hydrogen production ; Industrial research ; Power generation ; Sewage sludge ; Sludge digestion ; Anaerobic digestion technology ; Combined heat and power ; Sludge management ; Sustainable energy ; Urban sewages ; Cost benefit analysis
  8. Source: Energy Conversion and Management ; Volume 315 , 2024 ; 01968904 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0196890424005983