Here is a newbie question. Home and commercial CNG fuelers have driers to remove moisture from the gas before compressing it, do they remove the odor agent (mercaptan) as well or is this passed on into the tank and burned with the CNG? I don't detect the smell when refueling and wondered if it was still there or just good seals on the refueling equipment.
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Mercaptan (Mehanethiol) Removed?
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Re: Mercaptan (Mehanethiol) Removed?
There is suppose to be enough mercaptian in the fuel to be able to smell it (with a normal nose) at 20% of the lower explosive limit (LEL). With CNG that would be about 1% ng in a room with 99% air.
When you get to 5% ng in a room with other 95% air, and an appropriate source of ignition it will go boom.
Later
Larrycng
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