关于经济性上的讨论可以参考
DOI:10.1039/D3EE90066E

文中提到：

The effect of the energy consumption on the nitric acid cost in the plasma-based NOX synthesis process is shown by the solid and dotted lines in Fig. 8b, from which it follows that the plasma-based NOX synthesis process becomes competitive with the electrolysis-based Haber–Bosch process combined with the Ostwald process at an energy consumption of 1.0–1.5 MJ mol N−1, depending on the cost of the plasma reactor. Note that a significantly higher energy consumption is acceptable compared to the number (0.7 MJ mol N−1) in the paper as published. As listed in Table 1 in the paper as published, this is theoretically attainable for thermal plasmas, which have a minimum energy consumption of 0.72 MJ mol N−1. Warm plasmas and non-thermal plasmas may attain an energy consumption even below 0.7 MJ mol N−1 (see Table 1).

翻译：

图8b中的实线和虚线显示了能量消耗对基于等离子体的NOX合成过程中硝酸成本的影响，从中可以看出，当能量消耗在1.0–1.5 MJ mol N−1之间时，基于等离子体的NOX合成过程变得与基于电解的Haber–Bosch过程结合Ostwald过程具有竞争力，具体取决于等离子体反应器的成本。需要注意的是，与已发表论文中的数值（0.7 MJ mol N−1）相比，更高的能量消耗是可以接受的。如已发表论文中的表1所示，这对于热等离子体在理论上是可实现的，其最小能量消耗为0.72 MJ mol N−1。温等离子体和非热等离子体甚至可以达到低于0.7 MJ mol N−1的能量消耗（见表1）。

在其未修改的原文(doi: 10.1039/D0EE03763J)里提到:
which is required to decrease further to about 0.7 MJ mol N−1 in order to become fully competitive

翻译：为了变得完全具有竞争力，需要进一步降低到约0.7 MJ mol N−1。

  可见温等离子体和非热等离子体的潜力十分巨大