The scale-up of plasma reactors for bio, chemical, environmental, materials, and energy applications is an active area of research and development [1, 7]. Based upon the successful scale-up of dielectric barrier plasma technology for ozone generation [4] as well as corona discharges for many applications in flue gas treatment (starting with the early work, for example, of Gallimberti [2] and Katsura [3]) the prospects for scale-up for other applications are very promising. We have gathered here a few papers dealing with plasma reactor scale-up by several leading groups. Rabinovich et al. [6] discuss the scale-up of gliding arc reactors, which combine elements of thermal and non-thermal plasma, to 15 kW, for applications in hydrogen generation from syngas from a variety of biological and waste materials, exhaust gas treatment, water treatment, and fuel desulfurization. Professor Okubo and his collaborators [8] have developed a highly efficient and innovative process for SO2/NOx treatment from exhaust gas based on ozone generation by a dielectric barrier discharge reactor (77 kW) and which produces valuable byproducts. The ozone converts NO to NO2 and SO2 reacts with a NaOH solution to generate Na2SO4 which is collected as dry particles and used in glass manufacturing. Dr. Okubo [5] also provides a valuable review describing the overall progress in the scale-up of hybrid systems that combine plasma reactors for removal of NOx and wet-lime gypsum for SO2 removal. The overall message is that the combination of plasma with other process may be the key to developing highly efficient and larger scale industrial applications. While the plan for this special issue included many other possible contributions, the exigencies of the current pandemic may have affected the contributions of others. We remain optimistic that plasma reactors will continue to develop and scale-up issues will be addressed for future applications.

中文翻译：

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生物、化学、环境、材料和能源应用等离子反应器的等离子化学和等离子处理放大

用于生物、化学、环境、材料和能源应用的等离子反应器的放大是一个活跃的研究和开发领域 [1, 7]。基于用于臭氧生成 [4] 的介电阻挡等离子体技术的成功放大以及在烟道气处理中的许多应用的电晕放电（从早期的工作开始，例如，Gallimberti [2] 和 Katsura [3] ) 其他应用的放大前景非常有前景。我们在这里收集了几篇有关等离子反应器扩大规模的论文，这些论文由几个领导小组提出。拉比诺维奇等人。[6] 讨论了将热等离子体和非热等离子体元素结合到 15 kW 的滑动电弧反应堆的规模扩大，用于从各种生物和废料的合成气产生氢气、废气处理、水处理, 和燃料脱硫。Okubo 教授和他的合作者 [8] 开发了一种高效和创新的 SO2/NOx 处理工艺，该工艺基于介质阻挡放电反应器 (77 kW) 产生的臭氧，并产生有价值的副产品。臭氧将 NO 转化为 NO2，SO2 与 NaOH 溶液反应生成 Na2SO4，Na2SO4 以干燥颗粒的形式收集并用于玻璃制造。Okubo 博士 [5] 还提供了一篇有价值的评论，描述了混合系统扩大规模的总体进展，该系统结合了等离子反应器去除 NOx 和湿石灰石膏去除 SO2。总体信息是，等离子体与其他工艺的结合可能是开发高效和更大规模工业应用的关键。尽管本期特刊的计划包括许多其他可能的贡献，但当前大流行的紧急情况可能影响了其他人的贡献。我们仍然乐观地认为，等离子反应器将继续发展，并为未来的应用解决扩大规模的问题。