HI decomposition using a membrane reactor is one of the important steps in hydrogen production by the thermal splitting of water using the Sulfur-Iodine cycle. Though, this reaction is endothermic. The mathematical model available to study the performance of such a reactor is an isothermal model. In this study, a non-isothermal mathematical model was developed by microscopic material and energy balance across the length of the membrane reactor. Experimental results from the literature were used for validation of the developed model. Comparing the simulations from the developed model and already reported isothermal model showed significant differences, which endorses the importance of the developed model.

Later, the effects of different operating and design parameters were analyzed. Higher feed temperature (950 – 1000 K), lower feed pressure (100000–150000 Pa), lower feed flow rate (<200 ml/minute), lower permeate pressure ( <2500 Pa) and low to moderate $N_2$/HI ratio (0.3–0.4) were found to be the optimum operating conditions. Similarly, the conversion also increased with increasing reactor length, membrane area, and membrane permeance but eventually became constant. Reactor length around 0.4 m, membrane area around 0.008 m${}^2$ and membrane permeance around 2 $\times$ 10 ⁻⁷ mol m² Pa⁻¹ s⁻¹ were estimated to be the optimum design conditions for the maximum HI decomposition.

使用膜反应器的HI分解是通过使用硫碘循环对水进行热裂解而制氢的重要步骤之一。但是，该反应是吸热的。可用于研究这种反应器性能的数学模型是等温模型。在这项研究中，通过在膜反应器整个长度上的微观材料和能量平衡，建立了一个非等温数学模型。来自文献的实验结果用于验证开发的模型。比较来自已开发模型和已报告的等温模型的模拟结果显示出显着差异，这证明了已开发模型的重要性。

随后，分析了不同操作和设计参数的影响。较高的进料温度（950 – 1000 K），较低的进料压力（100000–150000 Pa），较低的进料流速（<200 ml /分钟），较低的渗透压（<2500 Pa）和中低水平${ñ}_2$/ HI比（0.3-0.4）被认为是最佳的操作条件。类似地，转化率也随着反应器长度，膜面积和膜渗透率的增加而增加，但最终变得恒定。反应器长度约0.4 m，膜面积约0.008 m${}^2$ 和膜通透性约为2 $\times$估计10 ^-7 mol m ² Pa ^-1 s ^-1是最大HI分解的最佳设计条件。