Gasoline vapor recovery
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United States of America Patent
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Nov 29, 1994
Issued Date -
N/A
app pub date -
Jun 21, 1993
filing date -
Dec 9, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for preventing the accumulation of moisture and water in gasoline storage tanks at retail distribution sites and for reclaiming and recycling gasoline vapor that collects in the headspace of gasoline storage tanks at retail service stations comprising sealing the tank against ingress of atmospheric gases, introducing a selected inert gas into the storage tank as the liquid gasoline is extracted therefrom to establish an inert gas/gasoline vapor mixture in the headspace of the storage tank, periodically recovering the inert gas/gasoline vapor mixture from the storage tank, and processing the recovered mixture to condense the gasoline vapor to liquid gasoline, which is removed for subsequent use.
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