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    • 8. 发明申请
    • METHOD OF TRANSPORTING LIQUEFIED GASES, IN PARTICULAR LNG, AT A TEMPERATURE BELOW SATURATION TEMPERATURE
    • 运输液化气体,特别是液化天然气,温度低于饱和温度的方法
    • WO2012127261A1
    • 2012-09-27
    • PCT/IB2011/000623
    • 2011-03-23
    • SHUTENKO, MaksymVASSERMAN, Oleksandr
    • SHUTENKO, MaksymVASSERMAN, Oleksandr
    • F17C5/02
    • F17C5/02F17C2201/052F17C2221/033F17C2223/0169F17C2223/033F17C2270/0105F17C2270/0173F17C2270/0178
    • In proposed method of liquefied gases (primarily LNG) transportation the liquefied gas is cooled prior to its loading into tanks of carrying vessel (e.g. a ship, an automobile, a railcar) to temperature which is lower, than saturation temperature at design pressure in tanks during the transportation. During the transportation heat inflow from the environment is absorbed by free increasing of liquefied gas temperature from subcooled liquid to saturated liquid state. Liquefied gas is not boiled off (as it would otherwise be the case for absorption of heat inflow) so it is not necessary to use reliquefaction plant on board of the carrying vessel or to dispose of boil-off gas. Seagoing ships transport large mass of liquefied gas so difference between liquefied gas temperature at the beginning of the transportation and saturation temperature will be relatively small. For example for LNG tanker having volume of tanks 150,000 m3 its value is 4.5 °C.
    • 在提出的液化气(主要是LNG)运输方法中,液化气体在装载到运输船(例如船舶,汽车,轨道车辆)的罐中之前被冷却到比罐中设计压力下的饱和温度低的温度 在运输过程中。 在运输过程中,从过冷液体到饱和液态的液化气温度自由增加,吸收了环境中的热量。 液化气体不会沸腾(否则吸收热量流入的情况),因此不需要在运载船上使用再液化装置或者处理蒸发气体。 海运船舶运输大量液化气,因此运输开始时液化气温度与饱和温度之间的差异将相对较小。 例如,对于坦克体积为15万立方米的液化天然气罐车,其值为4.5°C。