Typical configuration BOG recondenser (https://www.google.co.id/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwiB4qiQvbTOAhVEQo8KHTXcC-YQFggiMAE&url=http%3A%2F%2Fwww.tge-gas.com%2Fpresented-papers.html%3Ffile%3Dfiles%2Fdownloads%2Fpresented_papers%2F2011_Gastech%2FRecondensers%2520in%2520LNG%2520Import%2520Terminals_E.pdf&usg=AFQjCNHch7oW_10prds_kvQMNc8fsnaAKw&sig2=ui3JrTIrsNQTVbg9k7vIYg)

Boil-off Gas Handling

During LNG storing and transporting, heat from surrounding will cause LNG temperature to rise. The rise of temperature will lead to boil-off gas (BOG) generation. Boil-off gas produced in storage tank should be remove to maintain tank pressure at safe level.

BOG can be handled by several methods. (more…)

Cold-keeping system (http://docplayer.net/7352415-Curacao-cng-lng-terminal-feasibility-study.html)

LNG Recirculation Requirement

In LNG receiving terminal, where LNG is pumped from LNG carrier to onshore LNG storage tank, we have to provide one line to intermittently circulate LNG through unloading lines. This is called LNG recirculation line or keep-cool line.  The function of this line is maintain cryogenic condition of the unloading line during holding mode. Unloading activity is conducting intermittently. Sometimes we need to wait for a week or even a month to the next LNG unloading. During this time, there is a possibility of increasing temperature in the line. To prevent that, we need to circulate LNG in unloading line. (more…)