Refrigeration – Storage of solidified or liquified gas – Underground or underwater storage
Patent
1992-04-30
1994-08-02
Bennet, Henry A.
Refrigeration
Storage of solidified or liquified gas
Underground or underwater storage
137264, 141 18, 405 53, F17C 100, F17C 1308
Patent
active
053334655
ABSTRACT:
An underground storage system for storing natural gas at a vehicular fueling center which dispenses natural gas to natural gas powered vehicles. Compressed gas is stored in tubes positioned vertically in an elongate casing. The ground hole may be drilled using a conventional water well drilling rig and conventional water well casing and well head may be used to house the storage tubes. The tubes contain the natural gas under about 8,000 psi, which provides a much more rapid dispensing rate. The underground place of the storage tubes is safer than conventional above ground storage systems, as the pressurized containers are insulated by the surrounding earth. Moreover, with the storage tubes underground, vandalism is discouraged and the overall appearance of the fueling center is improved. Because the storage tubes contain large volumes of gas at high pressures, a low power compressor can be used. The low power compressor is inexpensive to operate and maintain and is relatively quiet. The inside of the casing will contain any gas escaping the storage tubes, and an extended relief line can be included to discharge any such escaping gas to a site remote from the service area.
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Bennet Henry A.
Doerrler William C.
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