Ultra-Low-Sulfur Diesel Fuel

Basics

• Diesel Fuel with little to no Sulfur Content
  • While in theory this could be a “Inorganic Sulfur”, much of it is bound in Organosulfur Compounds
    • While their removal can be remedied for, this originally lead to some issues such as:
      • Changes in (Often Previously Unspecified/Ignored) Fuel Lubricity
      • Changes in Static Electricity Dissipation / Conductivity of the Fuel
      • Misc other minor changes such as Gel Point / Energy Density / Seal Compatibility etc
        • These are far less severe/noted, although double check+citation needed etc
        • Main thing is the other two are HEAVILY documented in the literature + largely remedied by adding a bit of Transesterification Biodiesel to the mix (in a similar manner to how the Ethanol in [E-10]] replaced the Octane Booster TEL

Internal Links

• Sulfur Free Diesel
  • While the difference is largely negligible, this is one interesting advantage of F-T Diesel ( Diesel Fuel derived from the Fischer-Tropsch Reaction
    • It also tends to be a more “premium” diesel in terms of Cetane Number etc, although ESPECIALLY compared to Fossil Diesel this is countered by it’s increased cost, thus typically delegated as a Blendstock (at least in most markets and as of now, in the future this may drastically change)
• Off Road Diesel
  • In the early days of ULSD Rollout, this USED TO be essentially the “old” diesel+dye, but nowadays both are ULSD

External Links

• The Wikipedia Page on ULSD