Abstract
The amount of carbon deposited on hexaaluminate LaNiAl11O19 catalyst in CH4 decomposition and CO2 reforming of methane was determined by means of thermogravimetric analysis (TGA). The properties of carbon formed on the catalysts were characterized by X-ray photoelectron spectroscopy (XPS), temperature-programmed CO2 reaction (TPR-CO2), and temperature-programmed oxidation (TPO) techniques. The experimental results showed that hexaaluminate LaNiAl11O19 catalyst possessed high resistance to carbon deposition in CO2 reforming of methane to synthesis gas at high temperatures, and CO2 played an important role in eliminating carbon during the reaction. At least two forms of the deposited carbon, graphite and carbide, were produced during methane reforming with CO2.
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Liu, Y., Xu, Z., Cheng, T. et al. Studies on Carbon Deposition on Hexaaluminate LaNiAl11O19 Catalysts during CO2 Reforming of Methane. Kinetics and Catalysis 43, 522–527 (2002). https://doi.org/10.1023/A:1019879018935
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DOI: https://doi.org/10.1023/A:1019879018935