What is the function of cargo reliquefaction plants on LPG tankers?
Direct Answer
Option B: Compress and cool boil-off gas, returning it as liquid to cargo tanks
Reliquefaction plants manage cargo tank pressure by drawing off boil-off gas (BOG), compressing it, and rejecting latent heat through sea-water condensers. The liquefied gas is then returned sub-cooled to the cargo tanks, complying with IGC Code pressure-temperature control mandates.
All Options
Detailed Explanation & Context
Reliquefaction plants manage cargo tank pressure by drawing off boil-off gas (BOG), compressing it, and rejecting latent heat through sea-water condensers. The liquefied gas is then returned sub-cooled to the cargo tanks, complying with IGC Code pressure-temperature control mandates.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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