Abstract
We developed a new model for the dissociation rate of methane hydrate (MH) at its surface. It was incorporated to our numerical flow simulation code, which features a finite volume method, unstructured mesh and very thin layer (VTL) cells at the surface. The VTL is aimed to predict the mass transfer of methane for high Schmidt number. For solving the unknown intrinsic dissociation rates in our model, we conducted the laboratory experiments of MH decomposition and obtained the bulk flux of methane into water. By applying the numerical code, the intrinsic dissociation rates were determined under various flow conditions of ambient water, such as pressure, temperature, and flow rate.
