KINETICS AND THERMODYNAMICS OF SUPERCOOLED WATER AND GAS HYDRATES BY DEW POINT EXPERIMENTAL TECHNIQUE

Istomin, V.A.; Derevyagin, A.M.; Seleznev, S.V.; Agaltsov, A.G.; Mikhaylov, Y.V.

Авторы: Istomin V.A., Derevyagin A.M., Seleznev S.V., Agaltsov A.G., Mikhaylov Yu V.
Сборник: Proceedings of the Fifth International Conference on Gas Hydrates
Том: 1
Год издания: 2005
Место издания: Trondheim, Norway
Аннотация: The prospects for applying experimental equipment and developed procedures intended to study thermodynamics and kinetics of two-phase gas hydrates, as well as particular features of the existence of liquid aqueous phase in metastable area are considered. A new experimental technique for kinetics and thermodynamics of gas hydrate were developed. A special rig with gas flow and a new laser hydrometer are employed. A pressure may be varing from atmospheric pressure to 10-15 MPa, temperature may be changing from minus 40 oC to plus 30 oC. A highly sensitive laser interference hydrometer detect on it’s mirror the dew points: water dew point (and supercooled water), ice dew point and/or gas hydrate dew point as well as a gas-condensate dew point. The kinetics of condensation may be measured by using an interference picture. The experiments show that the processes of water liquid phase, crystal phase (ice and/or gas hydrates) and heavier hydrocarbons condensation on the mirror (silicon plate) essentially differ. The new rig have the following possibilities of experimental study: condensation kinetics, kinetics of transitions from condensed phase to crystal phase (from supercooled water to ice or to gas hydrate phase) and thermodynamics (temperature differences between supercooled water dew point and gas hydrate dew point in dependence on gas composition, pressure and temperature). Keywords: dew point, supercooled water, ice, gas hydrates, two-phase equilibria
Добавил в систему: Истомин Владимир Александрович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

KINETICS AND THERMODYNAMICS OF SUPERCOOLED WATER AND GAS HYDRATES BY DEW POINT EXPERIMENTAL TECHNIQUEстатья

Прикрепленные файлы