Sulfur Content in Petroleum Products With Potentiometric Titration
Determination of Hydrogen Sulfide and Mercaptans as per UOP 163-10 Standards
This application note describes in detail the determination of hydrogen sulfide (H2S), polysulfides (R-SS-H), and alkyl mercaptans (R-SH) in petroleum products according to UOP 163-10. The samples are titrated potentiometrically with silver nitrate in 2-propanol and the titration is monitored with a sulfidized silver ring electrode.
By downloading this application package, you will receive a PDF of the application note as well as the required data for the LabX™ titration software method.
Why Is Sulfur Content in Fuel Important?
The sulfur content in fuel significantly impacts fuel quality control and is regulated by stringent standards such as the UOP 163-10. Typical samples for this standard include gasoline, naphta, light cycle oils, and similar distillates.
What If the Sulfur Content Is Too High?
High sulfur contents in fuels result in suboptimal combustion, leading to the creation of corrosive acidic deposits that harm the metal components of an engine. Additionally, when sulfur-containing fuel undergoes combustion, it produces sulfur dioxide gas, which, upon contact with atmospheric moisture, forms acidic compounds. As a consequence, this process contributes to the occurrence of acid rain, causing environmental damage and structural degradation of buildings.
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