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Abstract In this paper, we studied the mechanochemical reactions between a series of metal carbonates and metal hydrides in the absence of a catalyst and found that the alkaline earth… Click to show full abstract
Abstract In this paper, we studied the mechanochemical reactions between a series of metal carbonates and metal hydrides in the absence of a catalyst and found that the alkaline earth metal carbonate-hydride systems show better methanation performances because these systems possess favorable thermodynamic properties. Among them, the CaCO3-MgH2 system shows the best methanation performances. By tuning the reaction mixture composition and enhancing the rate and duration of ball milling, the CH4 yield and content of the CaCO3-MgH2 system can reach 89% and 90%, respectively, which are increased by 16% and 40%, compared to the best results in the previous reports.
Journal Title: Solid State Sciences
Year Published: 2020
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