Storage and transportation requirements for methanol gasoline

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The last edit to this post was made by jinking2008 on 2009-10-30 at 21:08. 1. Storage period of methanol-blended gasoline for vehicles at gas stations: Depending on the properties of such gasoline, the storage period varies depending on climate and temperature; the key is to control the water content (including any water that may enter from the outside). With proper measures in place, methanol-blended gasoline for vehicles can be stored at gas stations for up to 3 months. 2. The existing oil tanks in the oil depot are not suitable for directly loading and unloading the modified fuel methanol. Generally, oil tanks need to be cleaned, and anti-corrosion coatings should not be used inside the tanks. An air dryer should be installed on the vent of the oil tank truck, and it is necessary to ensure that the oil tank is clean and dry. 3. Requirements for storage tanks at gas stations for methanol-blended gasoline in vehicles: Given the properties of methanol-blended gasoline for vehicle use, it is advisable to use stainless steel tanks, or carbon steel tanks without any internal anti-corrosion coating, as storage tanks for such gasoline at gas stations. To determine whether it is possible to store methanol-based gasoline for vehicles in existing gas stations, it is necessary to inspect the water and debris at the bottom of the tanks, as well as the internal anti-corrosion coating, and to check for corrosion on the inner and outer walls of the tanks. 4. Requirements for vent valves on tanks containing denatured fuel methanol: To prevent the absorption of moisture and evaporation losses of denatured fuel methanol, negative pressure exhaust valves should be installed in these tanks, and drying devices should be placed at the air inlet of the vent valves. 5. Sealing and drying of the vent pipe for methanol gasoline tanks in vehicles: A drying device can be installed above the vent pipe, with solid desiccants being commonly used. Solid desiccants can include anhydrous calcium chloride, molecular sieves, silica gel, etc. Considering cost-effectiveness, practicality, and convenience, it is recommended to use color-changing silica gel as a desiccant. Since colored silica gel changes color when it absorbs water, this makes it easy to check its condition, and it can be used again after being dried. 6. Unloading of modified fuel methanol: Modified fuel methanol should not be unloaded using the loading arms designed for gasoline in crude oil warehouses; instead, special loading arms equipped with sealing caps should be used. Denatured fuel methanol should not be transferred using the gasoline transfer pumps in crude oil storage tanks; instead, pumps designed specifically for chemical use should be employed. Vehicle methanol gasoline places no special requirements on pipelines; the regular gasoline pipelines at gas stations can be used. In accordance with the gasoline unloading procedures, a sealed unloading method should be employed to reduce losses, ensure quality, protect the environment, and enhance the safety level of gas stations. 7. Transport vehicles can typically be used, such as railway tank cars or road tank trucks, to deliver the modified fuel methanol to the blending center. 8. Fire-fighting equipment at methanol gasoline stations: It should be equipped with solvene-resistant foam extinguishers and dry powder extinguishers, etc., in accordance with the quantities specified in the \"Gas Station Design Code\". 9. When filling a vehicle with methanol gasoline at a gas station for the first time, the following should be noted: (l) The tanks and pipelines must remain clean, free of water and impurities ； (2) Clean and purge the tank and pipelines using a small amount of methanol-blended gasoline for vehicles ； (3) Fill the tank with methanol-based gasoline for vehicles to 80% of its capacity, and leave it at that level for about a week ； (4) Address any abnormalities promptly. 10. Differences between methanol-blended gasoline and regular gasoline for filling: The filling process is basically the same as that for regular gasoline. For fueling stations equipped with vapor recovery systems, it is important to ensure that the seal between the fuel nozzle and the tank opening is tight, and to check whether there is a reduction in vapors at the filling site; regular inspections should be carried out to determine if there are any leaks in the fueling station.