A method for dehydrating liquid fuel is disclosed. The method includes injecting a supply of dry gas into a liquid fuel via an outlet submerged in the liquid fuel. Also, a system for dehydrating liquid fuel is disclosed having a container for storing a liquid fuel, a line for delivering a supply of
A method for dehydrating liquid fuel is disclosed. The method includes injecting a supply of dry gas into a liquid fuel via an outlet submerged in the liquid fuel. Also, a system for dehydrating liquid fuel is disclosed having a container for storing a liquid fuel, a line for delivering a supply of dry gas, and an outlet disposed near the bottom of the container and connected to the gas line for injecting dry gas into the liquid fuel.
대표청구항▼
1. A method for dehydrating liquid fuel stored in a container, the method comprising injecting a supply of dry gas into a liquid fuel via an outlet disposed near the bottom of the container and submerged in the liquid fuel, the dry gas having a water vapour content lower than a water content of the
1. A method for dehydrating liquid fuel stored in a container, the method comprising injecting a supply of dry gas into a liquid fuel via an outlet disposed near the bottom of the container and submerged in the liquid fuel, the dry gas having a water vapour content lower than a water content of the liquid fuel, the dry gas exiting the outlet forming bubbles which rise through the fuel and diffusion of water from the fuel into the gas occurs until equilibrium is reached, and the container having a vent to ambient atmosphere external to the container through which fuel tank ullage displaced by introduction of the dry gas passes, the method further comprising varying an aperture of the outlet. 2. A method according to claim 1, wherein the liquid fuel is a hydrocarbon fuel. 3. A method according to claim 1, wherein the liquid fuel is an aviation fuel. 4. A method according to claim 1, wherein the dry gas is inert. 5. A method according to claim 1, wherein the dry gas is nitrogen. 6. A method according to claim 1, wherein the dry gas is nitrogen enriched air. 7. A method according to claim 1, wherein the dry gas is oxygen depleted air. 8. A method according to claim 1, further comprising injecting a second supply of dry gas directly into the container ullage. 9. A method for dehydrating liquid aviation fuel on-board an aircraft, the method comprising injecting a supply of dry gas into an aircraft fuel tank via a submerged outlet using the method of claim 1. 10. A method according to claim 9, further comprising generating the dry gas on-board the aircraft. 11. A method according to claim 10, wherein generating the dry gas on-board the aircraft utilises a fuel cell. 12. A method according to claim 10, wherein generating the dry gas on-board the aircraft utilizes a catalyst. 13. A method according to claim 10, wherein generating the dry gas on-board the aircraft utilises a gas separation membrane. 14. A method according to claim 9, further comprising injecting a second supply of dry gas directly into the fuel tank ullage. 15. A method according to claim 1, further comprising varying the gas flow rate through the outlet. 16. A method according to claim 1, further comprising drying a gas to form the supply of dry gas. 17. A method according to claim 5, wherein the nitrogen has a purity of approximately 98% or more. 18. A method according to claim 6, wherein the nitrogen enriched air has a nitrogen content of between approximately 90% to approximately 98%. 19. A method according to claim 1, wherein the dry gas is oxygen depleted air having an oxygen content of between approximately 0% to approximately 12%. 20. A method for dehydrating liquid fuel stored in a container, the method comprising injecting a supply of dry gas into a liquid fuel via an outlet disposed near the bottom of the container and submerged in the liquid fuel, the dry gas having a water vapour content lower than a water content of the liquid fuel, the dry gas exiting the outlet forming bubbles which rise through the fuel and diffusion of water from the fuel into the gas occurs until equilibrium is reached, and the container having a vent to ambient atmosphere external to the container through which fuel tank ullage displaced by introduction of the dry gas passes, wherein the dry gas is supplied at a temperature of between approximately 30 degrees Celsius to approximately 40 degrees Celsius. 21. A method for dehydrating liquid fuel stored in a container, the method comprising injecting a supply of dry gas into a liquid fuel via an outlet disposed near the bottom of the container and submerged in the liquid fuel, the dry gas having a water vapour content lower than a water content of the liquid fuel, the dry gas exiting the outlet forming bubbles which rise through the fuel and diffusion of water from the fuel into the gas occurs until equilibrium is reached, and the container having a vent to ambient atmosphere external to the container through which fuel tank ullage displaced by introduction of the dry gas passes, wherein the dry gas is supplied at a temperature around 35 degrees Celsius.
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이 특허에 인용된 특허 (8)
Lam, Joseph K-W; Parmenter, David; Masters, Simon, Aircraft fuel tank ventilation.
Lantos Federico E. (Aristobulo del Valle 971 ; Vicente Lopez 1638 Pcia ; Buenos Aires ARX), Method for decreasing the level of contamination of fuels such as residual fuels and other liquid fuels containing resid.
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