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An important contributor to highmaintenance costs is a
buildupof carbon-baseddeposits on combustion related
components or process systems known as carbon fouling, or
coking.Cokinghasbeen responsible for engine failures, shortened
maintenance cycles, and unplanned repairs. For example,
diesel enginemanufacturers have determined that coking on
pistons is a contributor to shortened engine life and costly
rebuilds (Figure3).
1
Aircraftmaintenancepersonnel arediscovering
significant coking in fuel lines, oil lines, and nozzles.
Studies have shown that cokingoccurswhen fuels or oils are
exposed to temperatures over 200°C, and increases signifi-
cantly at temperatures over 400°C. Frequently, exposure to
high temperatureoccursafter theengineor process isshut
down,when there isnocoolant flow tocarryawayexcessheat.
2
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SilcoKlean 1000 is a chemical vapor-deposited (CVD) layer,
designed specifically to reduce cokingof steel, stainless steel,
and specialty alloys. The unique non-line-of-sight CVDprocess
produces a flexible, amorphous silicon layer that diffuses into
themetal lattice and conforms to themost intricatesurface,while
maintaininghighdimensional tolerances.
SilcoKlean 1000 layer will flexwith themetal surface, and form
leak-free seals, even at themost demanding
temperatures.
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Test data show that SilcoKlean 1000 treatment is highly
effective in reducing catalytic coking, by asmuch as a factor
of 8. BecauseSilcoKlean 1000 treatment can be applied to
existing components, maintenance cycles can be extended
without significant re-engineering. SilcoKlean 1000
treatment is a proprietary (U.S. patent 6,444,326),
custom service, offeredby SilcoTek.
To learnmore about howSilcoKlean 1000 treatment can re-
duce coking in your process or engine fleet, visit SilcoTek
on theweb at
or contact our technical
service group at 814-353-1778.
References
1. Perez, J., A. Boehman, PennStateMulti-Discipline TribologyGroup andEnergy
InstituteStudies ThePennsylvaniaStateUniversity, UniversityPark, PA (1998).
2. Jones, E.G.,W. Balster,W. Rubey, Foulingof StainlessSteel andSilcosteel Sur-
facesDuringAviation-Fuel AutoxidationSystemsResearch Laboratories, Inc, Dayton,
OH; University of DaytonResearch Institute, Dayton, OH (1995).
3. Altin, O., S. Eser, Analysis of SolidDeposits fromThermal Stressingof a JP-8Fuel
onDifferent Surfaces in a FlowReactor Ind. Eng. Chem. Res, 40: 596-603 (2001).
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Carbondeposit from JP-8 fuel on various types of tubing
(500°C, 500psi, 1cc/min. #ow rate). Data courtesy of
ThePennsylvaniaStateUniversity.
SilcoKlean 1000
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Wemake it easywith quote options to fit your
needs visit our website at
and
complete our on-line quote request form or fax
your quote request to Quotes at
or e-mail it to
. We’ll get
a
RVPUF
out to youwithin 24 hours!
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Mailing instructions, shipping labels and a service
number will be forwarded to you alongwith your
quotation. Box up your parts and send them to
us. Your order will be processed in 10working
days or less.
Our 2 touch systemmeans
zerodisappoinents.
We’ll notify youwhenwe
receive your parts andwhen
your order is ready to ship.
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Carbonnucleation lands on surfacebut can easily be
removed from aSilcoKlean 1000 surface.
Untreated stainless steel promotes carbon $lament
growth that cannot be removedwith sonication.
Lit Cat#SK-001
SilcoKlean
®
, SilcoSteel
®
, andSilcoTek
®
are registered trademarksof SilcoTek
®
Corporation.
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