Various active materials (NaCl and Na₂WO₄ doped on Mn₂O₃) and supports (SiC, SiO₂, WO₄, CoO, La₂O₃, Ce₂O₃, ZnO, Al₂O₃, Cr₂O₃, La_0.3Sr_0.7Cr_0.7Fe_0.3O_3-δ (LSCF), and clinker) were prepared and tested for use in the OCM reaction in a packed-bed reactor. NaCl-Mn₂O₃/SiO₂ showed the best performance among the catalysts, with 37.5 % methane conversion, 60.5 % C₂ selectivity, and 22.7 C₂ yield at an optimum temperature of 750 °C under atmospheric pressure. The ethylene-to-ethane ratio of NaCl-Mn₂O₃/SiO₂ (7.5) was found to be the highest, and higher than that of Na₂WO₄-Mn₂O₃/SiO₂ (1.4), possibly due to its high basicity. Na₂WO₄-Mn₂O₃/SiO₂ showed good catalytic stability during 12 h time-on-stream experiment whereas slight deactivation was observed in NaCl-Mn₂O₃/SiO₂ due to the decomposition of NaCl, evidenced from traces of gaseous chloride compounds such as CH₃CH₂Cl, CH₃Cl, and Cl₂ in the outlet stream. However, the degree of deactivation was found to be more severe when (1) level of NaCl was lower (from 60% to 10%) and (2) time-on-stream experiment was tested for the longer period of time (12 h to 62 h). The loss of chloride was estimated at 57 and 69 % (by weight) after 12 and 62 h TOS, respectively. The results were in good agreement with information received from XRD where Na₂SiO₃ was observed due to the loss of chloride, when the deactivation was extreme. From O₂-TPSR result, Na₂WO₄-Mn₂O₃/SiO₂ showed no coke deposition, which could be the result of the high surface oxygen (O_s) contained in Na₂WO₄. Carbon formation at 56.36 µmol/g.hr was detected when using NaCl-Mn₂O₃/SiO₂ as catalyst. The solid-gas mechanism of the catalytic OCM reaction was predicted using the CH₄-TPSR technique.

各种活性材料（掺杂在Mn ₂ O ₃上的NaCl和Na ₂ WO ₄）和载体（SiC，SiO ₂，WO ₄，CoO，La ₂ O ₃，Ce ₂ O ₃，ZnO，Al ₂ O ₃，Cr ₂ O ₃，拉_0.3锶_0.7铬_0.7的Fe _0.3 ø _3-δ（LSCF），和熟料）被制备并用于在填充床反应器中的OCM反应使用测试。NaCl-Mn ₂ O ₃ / SiO ₂该催化剂在750℃的最佳温度和大气压下具有37.5％的甲烷转化率，60.5％的C ₂选择性和22.7 C _2的收率，表现出最佳的催化剂性能。发现NaCl-Mn ₂ O ₃ / SiO ₂（7.5）的乙烯/乙烷比最高，并且高于Na ₂ WO ₄ -Mn ₂ O ₃ / SiO ₂（1.4）的乙烯/乙烷比。高度基础。Na ₂ WO ₄ -Mn ₂ O ₃ / SiO ₂在12 h的运行时间实验中显示出良好的催化稳定性，而由于NaCl的分解，在NaCl-Mn ₂ O ₃ / SiO _2中观察到轻微的失活，从痕量的气态氯化物如CH ₃ CH ₂ Cl可以看出，出口物流中的CH ₃ Cl和Cl ₂。但是，当（1）NaCl含量较低（从60％到10％）并且（2）长时间运行实验被测试更长的时间（12 h）时，发现失活程度更加严重。至62小时）。在12和62小时的TOS后，氯化物的损失估计分别为57％和69％（重量）。结果与从XRD获得的信息高度吻合，其中Na当极度失活时，由于氯化物的损失，观察到₂ SiO ₃。从O ₂ -TPSR的结果来看，Na ₂ WO ₄ -Mn ₂ O ₃ / SiO ₂没有显示出焦炭沉积，这可能是由于Na ₂ WO _4中含有高表面氧（O _s）的结果。当使用NaCl-Mn ₂ O ₃ / SiO ₂作为催化剂时，在56.36μmol/ g.hr下检测到碳的形成。使用CH ₄ -TPSR技术预测了催化OCM反应的固气机理。