1
Harrison
William
E
Civ
AFRL/
PRTG
<
william.
harrison@
wpafb.
af.
mil>
11/
01/
2003
02:
26
PM
To:
Jeff
Herzog/
AA/
USEPA/
US@
EPA
cc:
Subject:
RE:
Question
on
jet
fuel
sulfur
levels
Jeff,

Since
I
am
reading
emails
at
home
and
will
be
out
of
the
office
for
a
few
days
I
will
send
this
and
a
follow
on
message
when
I
get
back.

In
general
we
see
fuel
less
than
500ppm
and
the
Defense
Energy
Support
Center
has
a
survey
called
PQIS
that
has
a
large
amount
of
information.
About
50%
of
the
jet
fuel
is
much
higher
than
500ppm
and
I
have
found
some
at
the
0.3
wt%
level.
I
would
anticipate
some
sulfur
contamination
into
diesel
from
jet
based
on
contamination
information
I
have
reviewed.

Not
to
open
a
can
of
worms,
but
lowering
the
sulfur
level
of
jet
would
be
a
good
thing.

Will
send
you
some
actual
data
to
review
next
week.

Bill
­­­­­
Original
Message­­­­­
From:
Herzog.
Jeff@
epamail.
epa.
gov
To:
william.
harrison@
wpafb.
af.
mil
Sent:
10/
30/
2003
3:
57
PM
Subject:
Question
on
jet
fuel
sulfur
levels
Dear
Mr.
Harrison,
I
am
a
mechanical
engineer
at
EPA
working
on
the
final
offroad
diesel
fuel
sulfur
control
rule.
As
part
of
our
analysis
of
the
potential
costs/
impacts
of
various
sulfur
control
scenarios,
it
has
become
important
to
us
to
estimate
jet
fuel
sulfur
levels.
We
are
not
considering
controlling
jet
fuel
sulfur.
We
are
evaluating
how
the
sulfur
level
of
the
jet
fuel
in
pipeline
transmix
volumes
effects
the
sulfur
levels
of
the
distillate
fuels
which
are
recovered
during
transmix
processing.
Our
understanding
is
that
jet
fuel
is
never
recovered
by
transmix
processors
and
that
the
distillate
product
2
recovered
currently
is
most
often
sold
into
the
heating
oil
market
(
it
is
also
sold
into
the
highway
diesel
market...
when
the
sulfur
level
permits).

The
TRW
data
that
I
reviewed
indicates
that
the
average
jet
fuel
sulfur
level
in
the
US
is
~
550
ppm
(
5
yr
avg).
I
also
have
some
data
from
Boeing
that
indicates
that
75%
of
the
jet
fuel
they
use
is
below
500
ppm
sulfur.

Are
you
aware
of
any
other
information
on
jet
fuel
sulfur
levels
in
the
US?

Do
you
know
why
jet
fuel
sulfur
levels
tend
to
be
so
much
lower
the
3,000
ppm
allowed
maximum?
One
reference
mentioned
briefly
that
this
is
because
the
processes
used
to
meet
other
jet
fuel
specifications
also
tend
to
remove
sulfur.
However,
I
have
not
been
able
to
get
any
additional
input
from
the
source
on
this
statement,
and
it
is
not
completely
clear
to
our
refinery
folks
why
meeting
jet
fuel
specs
would
result
in
sulfur
levels
so
much
lower
than
the
allowed
maximum.

Thanks
for
your
consideration.

Jeffrey
A.
Herzog,
Mechanical
Engineer
United
States
Environmental
Protection
Agency
National
Vehicle
and
Fuel
Emissions
Laboratory
Assessment
and
Standards
Division
2000
Traverwood
Drive
Ann
Arbor,
Michigan,
48105
Phone:
(
734)
214­
4227
Fax:
(
734)
214­
4816
E­
Mail:
herzog.
jeff@
epa.
gov
