Effects of Typical Underground Coal Mine Environmental Factors on CO Oxidation Performance of Sn-Containing Catalyst
Tianyu Xin, Bing Liang, Jiaxu Jin, Gang Bai, Junguang Wang, Qiang Liu, Yashengnan Sun, Xihua Zhou
TL;DR
This study examines how a Sn-containing catalyst performs in oxidizing carbon monoxide under conditions typical of underground coal mines.
Contribution
The study introduces a Cu–Mn–Sn composite oxide catalyst and evaluates its CO oxidation performance under mine-specific environmental factors.
Findings
The catalyst can reduce CO concentration to below 0.55% within 248 seconds at 1–7% CO levels.
Catalytic activity and reaction rate increase linearly with rising CO concentration.
Water poisoning significantly reduces catalyst performance, especially between 0–60% moisture levels.
Abstract
One of the primary causes of casualties as a result of underground coal mine disasters is the generation of high concentrations of carbon monoxide (CO). In this study, a copper (Cu)–manganese (Mn)–tin (Sn) composite oxide catalyst was prepared using the co-precipitation method, and the effects of CO concentration (1–7%), reaction temperature (25–300 °C), and water poisoning degree (0–100%) on CO catalytic oxidation performance were systematically investigated using a dynamic activity testing system. The results demonstrated that within the CO concentration range of 1–7%, the catalyst was able to reduce the CO concentration to below 0.55% in a maximum of 248 s and maintain this level in a relatively stable state. Meanwhile, both the catalytic activity and maximum instantaneous reaction rate exhibited a linear increase with the rise in the CO concentration. Elevated temperature…
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Taxonomy
TopicsCatalytic Processes in Materials Science · Industrial Gas Emission Control · Chemical Looping and Thermochemical Processes