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\begin{document}

\title{Experimental investigation and modeling on the dissociation conditions
of methane hydrate in clayey silt cores}



\author[1]{Changhong Yu}%
\author[2]{Baojiang Sun}%
\author[2]{Tangyang Yang}%
\author[2]{zhiyuan wang}%
\author[2]{Yonghai Gao}%
\author[2]{Litao Chen}%
\affil[1]{China University of Petroleum Huadong}%
\affil[2]{Affiliation not available}%


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  \date{May 23, 2024}


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\begin{abstract}
The dissociation conditions of hydrate in clayey silts are of great
significance for its efficient production. In this work, the
dissociation conditions of methane hydrate in clayey silt cores were
experimentally measured by step-heating method. Various cores including
quartz powder, montmorillonite and South China Sea sediments were used
for investigation. The results showed that the dissociation temperatures
of methane hydrate in clayey silt cores depressed compared to bulk
hydrate. In comparison to grain size, salinity and lithology had a more
significant influence on the equilibrium temperature depression. A water
activity meter was used to measure the water activity in clayey silt
cores. The influence of salt and minerals on water activity was
investigated. By combining the measured water activity data with the
Chen-Guo model, a novel water activity measurement method (WAM) for the
hydrate dissociation conditions prediction was proposed. The predicted
results are in good agreement with the experimental data.%
\end{abstract}%



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\verb`Manuscript_AICHEJ.docx`  available at \url{https://authorea.com/users/451641/articles/549859-experimental-investigation-and-modeling-on-the-dissociation-conditions-of-methane-hydrate-in-clayey-silt-cores}

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