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Date Posted: 18:33:51 09/08/09 Tue
Author: mcgee
Author Host/IP: 67-40-249-78.ptld.qwest.net / 67.40.249.78
Subject: Response to Freel's Kudos To The Kids Maybe

And here you are Tom with that LNG in pipelines B.S. and yet more misinformation.

Is LNG Explosive?
FERC And LNG Speculators Say:"LNG is not at all explosive or flammable in its liquid form."

Is LNG explosive?
Fact:In the strictest technical sense LNG is not explosive in its
liquid state. Neither are other flammable liquids such as
gasoline, propane, or hydrogen. Unfortunately, because of the
extreme cold temperature of LNG, the environment does not
want it to remain in a liquid state. Much of the world is
roughly 300° F warmer than LNG; therefore the environment
around it is continually boiling it. The vaporized LNG must
be vented from storage tanks to prevent the buildup of
pressure. This boil-off is released, burned, or re-condensed to
a liquid and returned to the tank.
Vaporized LNG has a relatively broad flammability range,
from 5.3% to 15% concentrations in air. Below these
concentrations the mixture is too lean to combust. Above
these concentrations the mixture is too rich. By comparison,
propane has a narrower range of flammability (2.2% to 9.5%),
as does gasoline (1.4% to 7.6%).6
Whether or not LNG vapor will explode depends on a variety
of factors related to its concentration in air, temperature,
pressure, and the amount of “hot contaminants” included in
the LNG. Studies performed to date are incomplete in
properly characterizing the explosive potential of LNG and its
vapors.

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