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...

Anthocyanins in sweetpotato ( Ipomoea batatas L.) have attracted much attention in light of their multiple health benefits and excellent properties as processed foods. Although crossbreeding is an effective way to breed new cultivars of sweetpotato, there are few reports on how anthocyanin...

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...