DEVICE FOR PROCESSING BOIL-OFF GAS, CAPABLE OF ENHANCING THE EFFICIENCY OF A PROPULSION DEVICE USING NITROGEN-FREE BOIL-OFF GAS

摘要

PURPOSE: A device for processing boil-off gas is provided to save cost for processing boil-off gas since the energy consumption to heat the boil-off gas is reduced.;CONSTITUTION: A device(100) for processing boil-off gas comprises an exhaust line(110), an energy separation unit(120), a fuel-gas supply unit(130) and a combustion-gas supply unit(140). The exhaust line forms a route, through which boil-off gas is discharged from an LNG storage tank(1). The energy separation unit divides the boil-off gas from the exhaust line into a high temperature of boil-off gas and a low temperature of boil-off gas. The fuel-gas supply unit supplies the low temperature of boil-off gas from the energy separation unit to a propeller(210). The combustion-gas supply unit supplies the high temperature of boil-off gas from the energy separation unit to a combustor(220). The energy separation unit comprises a compressor(121) and a vortex tube(122).;COPYRIGHT KIPO 2011