RPC-Overview

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Because they contribute to air pollution and are known catalyst poisons, sulfur compounds are increas-
ingly being targeted for monitoring to extremely low levels in air and in ethylene/propylene. Strict limits
for sulfur content in gasoline and diesel fuel are to be achieved by 2007.
Many key organo-sulfur compounds are adsorbed to or react with steel or stainless steel surfaces. To
address this issue Restek developed the Sulfinert® surface treatment process. Sulfinert® treatment
eliminates interaction between organo-sulfur compounds and steel. The figures on the next two pages
demonstrate the benefit of using Sulfinert®-treated compo-
nents for sampling and storing organo-sulfur compounds
Refineries and petrochemical plants use Sulfinert ®-treated
components for sampling, and for transferring sample streams.
Natural gas and liquid propane gas manufacturers and transfer
companies rely on Sulfinert®-treated systems to accurately
quantify sulfur-containing odorants in natural and liquid propane
gas streams. Sulfinert ®-treated sampling equipment is specified
in International Society of Beverage Technologists methods for
determining sulfur impurities in beverage grade carbon dioxide.
(ISBT procedure 1.0)
A wide variety of Sulfinert®-treated items are available from stock, including tubing, fittings, sample cylinders,
valves and sampling components. If you have other requirements, please see Custom Coating Services
on page 32.
Prevent surface
interactions with
reactive organo-sulfur
compounds at
parts-per-billion
levels.
Restek Performance Coatings • 800-356-1688 • 814-353-1300 • 15