Abstract Energy is a vital and inseparable driver of the present industrial world. Nevertheless, the main concern, unlike in the past, is not only energy supply but also environmental issues must be considered. Hydrogen, an alternative energy carrier, is currently produced mainly from mature reforming technology, which leads to CO2 emission. Therefore, in this paper, a steam methane reforming unit is integrated with i) a Ca-Cu cycle, which is the combination of a CO2 capture cycle with CaO sorbent and a copper chemical combustion looping to meet the heat requirement, ii) a hydration step as well as iii) a gasification section for syngases generation. The novel proposed process is simulated in Aspen Plus software. Based on the results, the mass flow rate of produced H2 and captured CO2 are 4.68 kg/s and 51.85 kg/s, respectively. In terms of thermal load, the process requires 111 MW of external heat to bring the methane and steam mixture to 600 °C, and rest of the demand is often supplied by the cycle solely. The CO2 capture efficiency and thermal efficiency were obtained as 91.11% and 66.55%, respectively. Eventually, a sensitivity analysis was performed by selecting the decisive parameters, which include steam to carbon molar ratio, Ca(OH)2 to carbon molar ratio, temperature, pressure and steam to biomass and coal mass ratio.

中文翻译：

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用于清洁制氢的煤/生物质气化装置的新型集成钙铜循环

摘要 能源是当今工业世界不可或缺的重要驱动力。然而，与过去不同的是，主要关注点不仅是能源供应，还必须考虑环境问题。氢气是一种替代能源载体，目前主要采用成熟的重整技术生产，导致二氧化碳排放。因此，在本文中，蒸汽甲烷重整装置与 i) Ca-Cu 循环相结合，这是一个 CO2 捕获循环与 CaO 吸附剂和铜化学燃烧循环的组合以满足热量需求，ii) 水合步骤以及 iii) 用于生成合成气的气化段。新提出的过程在 Aspen Plus 软件中进行模拟。根据结果​​，产生的 H2 和捕获的 CO2 的质量流量分别为 4.68 kg/s 和 51.85 kg/s。在热负荷方面，该过程需要 111 MW 的外部热量才能使甲烷和蒸汽混合物达到 600 °C，而其余需求通常仅由循环提供。CO2 捕集效率和热效率分别为 91.11% 和 66.55%。最后，通过选择决定性参数进行敏感性分析，这些参数包括蒸汽与碳的摩尔比、Ca(OH)2 与碳的摩尔比、温度、压力以及蒸汽与生物质和煤的质量比。