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Module 9: LNG Fueling and Defueling


           Lesson 9.2: LNG Defueling

            Vent-to-               Gas is vented from the vehicle’s onboard fuel storage tanks directly to the atmosphere
            Atmosphere



















            Liquid Transfer to     LNG is transferred from the vehicle’s onboard storage tank to another LNG tank
            LNG Tank               LNG can transition to gas
                                   Possible to recover some amount of liquid













































                                     NGV Essentials and Safety Practices (CNG & LNG)                           © 2023 NGVi All Rights Reserved   Page 9-4
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