The Sulfur-Iodine Cycle for the thermochemical production of hydrogen offers many benefits to traditional methods of hydrogen production. As opposed to steam methane reforming - the most prevalent method of hydrogen production today - there are no carbon dioxide emissions. Compared to other methods of hydrogen production, the efficiency of the cycle is excellent. Due to the high temperatures necessary for the cycle, which are generally greater than 8500C, several of the Generation IV nuclear reactor concepts are attractive thermal energy sources. However, the high temperature and corrosive reaction conditions of the cycle, involving reactions including the decomposition of H2SO4 at 400-9000C, present formidable corrosion challenges. The conversion of sulfuric acid to sulfur dioxide was the focus of this study. The alloying of structural materials to platinum has been proposed as a solution to this problem. A catalytic loop to test the materials was constructed. Sulfuric acid was pumped over the material at 903+20C. The sulfur dioxide production of the catalyst was measured as a means of quantifying the efficiency of the system as a function of temperature.
展开▼
机译：用于氢气热化学生产的硫碘循环为传统的氢气生产方法提供了许多好处。与蒸汽甲烷重整（当今最流行的制氢方法）相反，没有二氧化碳排放。与其他制氢方法相比，该循环的效率极佳。由于循环所需的高温通常高于8500℃，因此第四代核反应堆的几种概念都是有吸引力的热能源。然而，该循环的高温和腐蚀性反应条件，包括在400-9000℃下分解H 2 SO 4在内的反应，提出了巨大的腐蚀挑战。硫酸向二氧化硫的转化是本研究的重点。已经提出将结构材料与铂合金化以解决该问题。构建了催化回路以测试材料。在903 + 20℃下将硫酸泵送到该材料上。测量催化剂的二氧化硫产量，作为量化系统效率随温度变化的手段。
展开▼
