Kinetic Study of Catalytic Surface Reaction in Methane Pyrolysis in Molten Metal Bubble Column Reactors
نویسندگان
چکیده
Hydrogen can be produced via methane pyrolysis in a molten metal bubble column to create separable carbon. Tin is used as base this study, and catalytically active metals such nickel copper are added it. The study uses differential equation that takes into account both parallel catalytic surface reactions on the conventional noncatalytic gas bulk. research analyzes effect of type, temperature, orifice diameter surface-to-volume ratio their effects reaction phase bubble. results indicate 5 wt% Ni–Sn mixture performs best among studied alloys, with calculated fraction approximately 90% at 950 °C, confirming dominant activity. In addition, estimates conversion under different conditions diameter, height by solving using kinetic parameters derived from experimental results. for future reactor design.
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Metals that are active catalysts for methane (Ni, Pt, Pd), when dissolved in inactive low-melting temperature metals (In, Ga, Sn, Pb), produce stable molten metal alloy catalysts for pyrolysis of methane into hydrogen and carbon. All solid catalysts previously used for this reaction have been deactivated by carbon deposition. In the molten alloy system, the insoluble carbon floats to the surfac...
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ژورنال
عنوان ژورنال: Journal of Chemical Engineering of Japan
سال: 2023
ISSN: ['0021-9592', '1881-1299']
DOI: https://doi.org/10.1080/00219592.2023.2240859