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 14315.2/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.

中文翻译：

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城市污水污泥深度利用钢铁制造低碳制氢发电


该研究对钢铁制造中利用城市污水污泥进行低碳氢和电力生产进行了全面分析。重点关注生物质气化和厌氧消化，评估各种技术的效率。主要发现包括带有洗涤装置的微型涡轮机和带有PSA的斯特林电机在同时供热和发电方面的有效性，分别实现了1081.44千瓦和1167.74千瓦的输出功率，以及9.45吉瓦时和10.20吉瓦时的年发电量。对于氢气和合成气生产，PSA（变压吸附）技术的氢气体积流量为14315.2/天，质量流量为862.4 kg/h，效率很高。经济分析显示，带有PSA装置的微型燃气轮机最具成本效益，因为其沼气升级成本较低，售电盈利能力较高，而且气化技术用于制氢技术。这项研究强调了污水污泥在可持续制氢方面的潜力，符合环境目标和工业需求。