Performance analysis of sabatier reaction on direct hydrogen inlet rates based on solar-to-gas conversion system
Performance analysis of sabatier reaction on direct hydrogen inlet rates based on solar-to-gas conversion system
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DOI：
10.1016/j.ijhydene.2021.05.156
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发表时间：
2021-06
影响因子：
7.2
通讯作者：
S. Wai;Y. Ota;K. Nishioka
中科院分区：
文献类型：
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作者：
S. Wai;Y. Ota;K. Nishioka
合成甲烷是一种能量密度高的主要能源载体，具有替代化石燃料的潜力。在这项研究中，利用二氧化碳和太阳能制氢开发了一种太阳能制气系统，以满足目前的能源需求。然而，入口反应物气体引起的高反应温度会影响催化剂的性能和投资成本。因此，我们研究了反应器运行温度对系统的功耗。分析了产氢速率（GRH2）对Sabatier反应的影响，重点分析了甲烷化系统的甲烷浓度和总功耗。甲烷浓度在GRH2浓度为0.337和0.449 NL/min时最高。随后，在220°C和0.449 NL/min的GRH2条件下，观察到高甲烷组成（98.4%）。因此，太阳能制氢甲烷化系统可以有效地将合成甲烷分配到燃气管网。
Synthetic methane is a major energy carrier having high energy density and can potentially replace fossil fuels. In this study, a solar-to-gas conversion system was developed using CO2and solar-based hydrogen to meet the present energy demands. However, high reaction temperature induced by the inlet reactant gases can affect catalyst performance and cost of investment. Thus, we investigated power consumption of the reactor operating temperature for the system. The influence of hydrogen generation rates (GRH2) on the Sabatier reaction was analyzed, and the concentration of methane and total power consumption of the methanation system was highlighted. The highest methane concentrations were observed at 0.337 and 0.449 NL/min of GRH2. Subsequently, high methane composition (98.4%) was observed at 220 °C and 0.449 NL/min of GRH2. Therefore, methanation system with solar-based hydrogen can effectively distribute synthetic methane to the gas grid.