Gasoline vapor recovery
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United States of America Patent
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Jun 22, 1993
Grant Date -
N/A
app pub date -
Dec 9, 1991
filing date -
Dec 9, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for reclaiming and recycling gasoline vapor that collects in the headspace of gasoline storage tanks at retail service stations comprises 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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