Yanhong Zheng
Chinese Academy of Sciences
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Featured researches published by Yanhong Zheng.
Chinese Science Bulletin | 2003
Huaiyan Lei; Yanhong Zheng; Baoxiang Wu
Using an experimental transparent sapphire high-pressure cell, three-phase (methane hydrate + AlCl3 solution + methane) equilibrium conditions of methane hydrates in the aqueous solution containing AlCl3 have been investigated under conditions of temperature from 272.15 to 278.15 K and pressure from 4.040 to 8.382 MPa. It could be clearly verified that AlCl3 is of stronger inhibitive effect than that observed for other electrolytes, such as KCl, CaCl2, at the same mole fraction. The induction time of the methane hydrate formation becomes longer when the water activity decreases with the increase of ion charge numbers. Methane hydrates tend to crystallize more easily with higher concentration (AlCl3 concentration of 18%) than lower one (AlCl3 concentration of 10%) in the same electriclyte solution. An empirical exponential equation is presented to calculate the equilibrium temperature and pressure of methane hydrate stable occurrence, and to correlate the measured data for aqueous AlCl3 solution. The results show that there was infinitely small discrepancy between the theoretical computed values and the data oberserved in actual experiments.
Organic Geochemistry | 2005
Weijian Zhou; Shucheng Xie; Yanhong Zheng
Organic Geochemistry | 2007
Yanhong Zheng; Weijian Zhou; Shucheng Xie
Earth and Planetary Science Letters | 2010
Weijian Zhou; Yanhong Zheng; A. J. Timothy Jull; Shucheng Xie
Organic Geochemistry | 2011
Yanhong Zheng; Weijian Zhou; Xiaomin Liu; Chuanlun L. Zhang
Chemical Geology | 2011
Yanhong Zheng; Weijian Zhou
Chinese Science Bulletin | 2009
Yanhong Zheng; Weijian Zhou; Shucheng Xie; XueFeng Yu
Organic Geochemistry | 2016
Mirosław Słowakiewicz; Fiona F Whitaker; Lisa Thomas; Maurice E. Tucker; Yanhong Zheng; Przemysław Gedl; Richard D. Pancost
Frontiers of Earth Science in China | 2009
Yanhong Zheng; Shucheng Xie; Xiaomin Liu; Weijian Zhou
Environmental Earth Sciences | 2011
Yanhong Zheng; Weijian Zhou; Zhao Liu; Xiaomin Liu