Partial oxidation of methane to methanol in a flow reactor at elevated pressure
Partial oxidation of methane to methanol in a flow reactor at elevated pressure
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DOI：
10.1021/ie00058a007
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发表时间：
1991-10
影响因子：
4.2
通讯作者：
Daniel W. Rytz;A. Baiker
中科院分区：
文献类型：
--
作者：
Daniel W. Rytz;A. Baiker
甲烷部分氧化反应是在填充有石英片的搪玻璃管式流动反应器中进行的。实验在20-50巴的压力、425-500 ℃的温度、3-12秒的空间时间和进料中3、5和10摩尔%的氧浓度下进行。观察到的反应产物是甲醇、一氧化碳和水，以及少量的二氧化碳、乙烯和甲醛。根据实验条件，甲醇的选择性可达到50%以上，甲烷转化率为3- 4%。在14%的较高转化率水平下，对甲醇的选择性下降至30%。低温和高压有利于甲醇的生产。反应物进料中氧浓度的增加增加了产率，但降低了对甲醇的选择性。
The partial oxidation of methane was carried out in a glass-lined tubular flowreactor packed with quartz chips. Experiments were performed at pressures of 20-50 bar, temperatures of 425-500 C, space times of 3-12 s, and oxygen concentrations in the feed of 3, 5, and 10 mol%. Reaction products observed were methanol, carbon monoxide, and water with small amounts of carbon dioxide, ethylene, and formaldehyde. Depending on the experimental conditions, selectivities to methanol of up to 50% could be reached with methane conversions of 3-4%. At higher conversion levels of 14% the selectivity to methanol dropped to 30%. Low temperature and high pressure were found to favor methanol production. Increase of the oxygen concentration in the reactant feed increases the yield but lowers theselectivity to methanol.