A process for a high yield of aromatics from the oxygen-free conversion of methane: combining plasma with Ni/HZSM-5 catalysts
A process for a high yield of aromatics from the oxygen-free conversion of methane: combining plasma with Ni/HZSM-5 catalysts
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甲烷无氧转化高产芳烃的工艺：等离子体与 Ni/HZSM-5 催化剂相结合
作者：
报道了一种在常压、低温条件下，采用两段等离子体-催化剂（PFC）反应器，甲烷无氧转化制芳烃和副产氢气的高产率工艺。分别以纯甲烷和甲烷与氢气的混合气作为两段式PFC工艺的原料气进行了研究。以甲烷和氢气混合气为原料气，Ni/HZSM-5催化剂的催化活性比以纯甲烷为原料气的催化活性稳定时间长得多。使用低Ni负载量的Ni/HZSM-5催化剂和在合适的催化剂温度下可以实现最大芳烃产率。
A process for a high yield of aromatics and co-produced hydrogen from the oxygen-free conversion of methane using a two-stage plasma-followed-by-catalyst (PFC) reactor at atmospheric pressure and low temperature is reported. Pure methane and a methane and hydrogen mixture as the feed gas for the two-stage PFC process were investigated, respectively. Using the methane and hydrogen mixture as the feed gas into the two-stage PFC reactor, Ni/HZSM-5 catalysts keep stable catalytic activity for a much longer on-stream time than that using pure methane as the feed gas. The maximum aromatic yield may be achieved using low Ni-loading Ni/HZSM-5 catalysts and at a suitable catalyst temperature.
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