Среда, 22.11.2017, 10:29
Приветствую Вас Гость | RSS

Мой сайт

Меню сайта
Статистика

Онлайн всего: 1
Гостей: 1
Пользователей: 0
Форма входа
Главная » 2015 » Март » 6 » Liquefied natural gas
13:40
Liquefied natural gas

Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4) that has been converted to liquid form for ease of storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state. It is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately −162 °C (−260 °F); maximum transport pressure is set at around 25 kPa (4 psi).
LNG achieves a higher reduction in volume than compressed natural gas (CNG) so that the (volumetric) energy density of LNG is 2.4 times greater than that of CNG or 60 percent of that of diesel fuel. This makes LNG cost efficient to transport over long distances where pipelines do not exist. Specially designed cryogenic sea vessels (LNG carriers) or cryogenic road tankers are used for its transport. LNG is principally used for transporting natural gas to markets, where it is regasified and distributed as pipeline natural gas. It can be used in natural gas vehicles, although it is more common to design vehicles to use compressed natural gas. Its relatively high cost of production and the need to store it in expensive cryogenic tanks have hindered widespread commercial use.


This video is targeted to blind users.

Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video

Очень давно не размещалось на сайте свежее видео. Снимем это недоразумение. Смотрите, комментируйте и предлагайте, еще видеофайлы.
Просмотров: 94 | Добавил: emeedchlor1972 | Теги: обслуживаемый газопровод, использование, Эксплуатация | Рейтинг: 5.0/1
Всего комментариев: 0
Поиск
Календарь
«  Март 2015  »
ПнВтСрЧтПтСбВс
      1
2345678
9101112131415
16171819202122
23242526272829
3031

Copyright MyCorp © 2017
Создать бесплатный сайт с uCoz