Gasohol

"David Lesher" wrote in message ...

We never used dye. The operator has a stainless sink that drains into the
slop tank. In it is a large graduated cylinder. The faucet samples the
incoming line and pours into the cylinder; it oveflows into the sink. He
has an approprite hydrometer bobbing in it.

He "makes the cut" by observing the color change and the specific
gravity. He punches the [explosion-proof, of course!] pushbutton on the
valve panel when it's time.

He may cut early. middle or late; it depends on the two products. The
schedulers try to make adjacent 'tenders' friendly. Say $2 Fuel Oil
followed by Jet-A. That would be an late cut; he waits until he's sure
it's all Jet-A then he swings the valve. A few barrels of Jet-A aka
Kerosene will not hurt 100,000 bbls of #2FO.

If an unfriendly cut, say gas to Jet-A; he'll cut early to the slop
tank, and then ~~5-10 min later to Jet-A.

The slop tank is eventually emptied by being slowly injected into
a Kero/FO incoming stream; the tank is later tested to be sure its
flashpoint remains above 110F.


Specialty fuels may not travel the pipeline, but be shipped some
distances by tanker truck, or barge.

Fuels such as.... AvGas.
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Thanks Dave! Can 87 octane be mixed with ~93 octane to arrive at 90 octane? Seems like a lot of black magic (no pun
intended) in the oil business...

"Blueskies" writes:

--

Thanks Dave! Can 87 octane be mixed with ~93 octane to arrive at 90 octane? Seems like a lot of black magic (no pun
intended) in the oil business...



{please trim your quotes...}

We didn't {it was a Marketing function} but yes. Sunoco was the most
visible; their pump took both base [86 octane, ISTM] and high test & you
set the ratio before lifting the nozzle. Others did so in a less obvious
manner.

Most of the ''magic'' is marketing hype. It used to be "spot" gas [aka
noname] was dubious; maybe old, etc.. Since fuel injected cars took over;
IMHO 99.99% of gas is all the same, save the uniform on the attendent.

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

("David Lesher" wrote)
Since fuel injected cars took over; IMHO 99.99% of gas is all the same,
save the uniform on the attendent.


Attendant? :-)

http://en.wikipedia.org/wiki/Tesoro
Tesoro's "fuel terminal" (in Roseville, MN) has pumps, and no building -
just credit card payment boxes. It's the only place in the Twin Cities I've
been able to find 87 OXY-Free. The other 'far-and-few-between' Non-OXY
pumps, around town I've seen, are premium.


Paul-Mont

Blueskies wrote:




Thanks Dave! Can 87 octane be mixed with ~93 octane to arrive at 90 octane? Seems like a lot of black magic (no pun
intended) in the oil business...


That's exactly how they make the mid grade gas.