氷粒子の融解を伴うプロパンハイドレートの生成

抄録

Formation process of hydrate was studied experimentally using propane gas, where ice particles were set in a container and then filled with propane gas. In order to improve the hydrate production rate and conversion rate, the temperature in the container was raised over 0 °C after an initial formation process. The experiments were carried out under various temperatures in the container, using two mean diameters of ice particles. Effect of the time interval of the initial formation process on the hydrate production rate was investigated. It was found that a higher hydrate production rate and higher conversion rate were obtained by raising the temperature in the container over 0 °C and by using smaller ice particles and also found that there was a suitable time interval of the initial formation process. Moreover, the formation process of hydrate was observed by taking microscopic pictures of the hydrate in order to understand the phenomena of hydrate formation with melting ice particles.