Citation: Jin Yang Chen, Lu Jiang Jin, Jun Ping Dong, Hai Fei Zheng, Gui Yang Liu. Methane formation from CaCO₃ reduction catalyzed by high pressure[J]. Chinese Chemical Letters, ;2008, 19(4): 475-478. doi: 10.1016/j.cclet.2008.01.023 shu

Methane formation from CaCO₃ reduction catalyzed by high pressure

a School of Environmental and Chemical Engineering, Shanghai University, Shanghai 201800, China;
b School of Sciences, Shanghai University, Shanghai 200436, China;
c School of the Earth and Space Sciences, Peking University, Beijing 100871, China

Received Date: 17 October 2007

Under high pressures of several giga-pascals using hydrothermal diamond anvil cell, methane generated directly from CaCO₃ reduction in gold-lined chamber is in situ measured by Raman spectroscopy at the temperature of 550℃.The reducing agents include FeO, SiO and natural fayalite (Fe₂SiO₄), and the resource of hydrogen are water and natural serpentine (Mg₃Si₂O₅(OH)₄).The study demonstrates the existence of abiogenic formation of methane under high pressures in the Earth's interior and that the application of high pressure to catalyze multicomponent reactions is a very promising method.
- CaCO₃ reduction,
- High pressure,
- Methane,
- Raman spectroscopy
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