A novel hybrid Cu–Cl thermochemical cycle is developed and assessed for the co-production of hydrogen and copper using copper waste. An experiment is also conducted to establish the high-temperature electrolytic step as a proof of concept. A detailed parametric study is conducted to assess the effects of such parameters as process step temperature and energy efficiency of the electrical power plant that provides electricity to the cycle on the energy and exergy efficiencies of the overall cycle. The values of the energy and exergy efficiencies of the cycle are 31.8 and 69.7%, respectively. The maximum specific exergy destruction occurs in the electrolytic step. The results show that the proposed cycle performs better in terms of energy and exergy efficiencies compared to similar four-step Cu–Cl cycles. Using the proposed cycle, a new avenue may be open for copper waste to be more advantageously managed, potentially enhancing the sustainability of the relevant processes through improved environmental protection and resource recovery.

中文翻译：

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利用热化学Cu–Cl循环从铜废料中联产氢气和铜

开发了一种新颖的杂化铜-氯热化学循环，并评估了利用铜废料联产氢和铜的能力。还进行了实验以建立高温电解步骤作为概念证明。进行了详细的参数研究，以评估诸如工艺步骤温度和为整个循环提供电能的火力发电厂的能效等参数对整个循环的能量和火用效率的影响。该循环的能量效率和火用效率分别为31.8和69.7％。在电解步骤中发生最大的比能用破坏。结果表明，与类似的四步式Cu-Cl循环相比，拟议的循环在能量和火用效率方面表现更好。使用建议的周期，