The clathrate hydrate formation from a model natural gas, i.e., a mixture of methane, ethane, and propane in a 90:7:3molar ratio, under a constant pressure was experimentally investigated, focusing on the compositional evolution of hydrate crystals formed inside a gas-bubbling-type reactor...

In this paper, we experimentally investigated the time evolution of compositions in the gas phase and the hydrate slurry during long-term operations of hydrate-based CO2 separation. We performed continuous gas separation experiments at pressure of 2.3MPa and temperature of 273.2K. We continually...

Growth rate of a hydrate layer at the guest/liquid-water interface is analyzed considering the conjugate process of the mass-transfer and hydrate crystal growth. Hydrate-layer growth rate data in the literature are often compiled according to the system subcooling (∆<em>T </em>≡ <em>T</em>_eq − <em>T</em>_ex, where...</sub>

This paper report analyses of thermodynamic stability of structure-H clathrate hydrates formed with methane and large guest molecules in terms of their gas phase molecular sizes and molar masses for the selection of a large guest molecule providing better hydrate stability. We investigated the...

For establishing hydrate-based technologies for natural-gas storage/transport, CO₂ capture from industrial flue gases,<i> etc.</i>, we need appropriate guidelines for the scale-up of hydrate production/processing equipment from laboratory scales to industrial scales. This paper aims to provide...