Compressed liquefied, storage

LPG (liquefied petroleum gas)— propane or (less commonly) butane, obtained by extraction from natural gas or from refinery processes. LPG has a vapor pressure sufficiently low to permit compression and storage in a liquid state at moderate pressures and normal ambient temperatures. Pressurized in metal bottles or tanks. LPG is easily handled and readily lends itself to a variety of applications as a fuel, refrigerant, and propellant in packaged aerosols. LPG is also called LP gas and bottled gas. See natural gas liquids. 

Aboveground compressed gas storage assumptions Liquefied hydrogen storage base case assumptions Metal hydride storage base case assumptions Distribution options in H2Sim Truck and rail transport assumptions Ship transport assumptions... 

Storage class 2A Compressed, liquefied, and dissolved gases... 

For small stores, quantity limits up to which storage is allowed have been set for several classes. Typical limits are in the range up to 200 kg. For some classes, however, e.g., explosives (class 1), compressed, liquefied, and dissolved gases (class 2 A), flammable solids (class 4.1 A), infectious substances (class 6.2), or radioactive substances (class 7) there are no allowances. 

NFPA 55 Standard for the Storage, Use and Handling of Compressed and Liquefied Gases in Portable Cylinders, 1998 edition. National Fire Protection Association, Quincy, MA. 

Fuel modification in terms of volatility, hydrocarbon types, or additive content. Some of the fuels currently being used are liquefied petroleum gas (LPG), liquefied natural gas (LNG), compressed natural gas (CNG), fuels with alcohol additives, and unleaded gasoline. The supply of some of these fuels is very limited. Other fuel problems involving storage, distribution, and power requirements have to be considered. 

I lydrogen is a low-density gas at ambient conditions. It liquefies at -253°C. For storage hydrogen must be compressed nr liquefied. 

When pressure relief devices are intended primarily for protection against overpressure due to external fire or heat, have no permanent supply connection, and are used for storage at ambient temperature of non-refrigerated liquefied compressed gases, they are excluded from requirements of Par. UG-125c (1) and C (2), with specific provisions. See ASME code [1] for detailed references and conditions. 

FPN No. 2) Piping without valves, checks, meters, and similar devices would not ordinarily introduce a hazardous condition even though used for flammable liquids or gases. Locations used for the storage of flammable liquids or of liquefied or compressed gases in sealed containers would not normally be considered hazardous unless also subject to other hazardous conditions. 

Conclusively, hydrogen has been used and stored safely in the industry for quite a long time as compressed gas or liquefied hydrogen, and it seems that metal hydride storage will be equally safe or even safer. Consideration of future hydrogen applications reveals no safety problems in the industrial and commercial markets. Although hydrogen safety... 

Standard on Fire Protection for Laboratories Using Chemicals Recommended Practice on Materials, Equipment and Systems Used in Oxygen-Enriched Atmospheres Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks Liquefied Petroleum Gas Code... 

The EU "STORMY" program aims to develop the next generation of compressed and liquefied hydrogen storage and metal hydrides. The EU consortium includes about 40 partners including car industry players. The program is support with a 10 million budget... 

Natural Gas. Natural gas, an abundant fuel resource in the United States, has sufficient reserves to fuel over 10 x 106 U.S. vehicles per year for the next 50 years (122). Natural gas is used in two forms as a transportation fuel compressed or liquefied at low temperatures. Tanks for the storage of compressed natural gas are heavy and larger in volume than for liquid fuels. However, the added cost is offset by an expected lower pump price compared to gasoline (123). Whereas the lack of public natural gas fueling stations and other factors make natural gas more attractive for fleet vehicles in the United... 

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