FCC slurry

Also known as: cat slurry, cat bottoms, decant oil

FCC slurry is a highly aromatic resid stream produced by the FCC.

Typical uses for FCC slurry are:

  • Fuel oil blending - Cat slurry can be blended into residual fuel oil with minimal amounts of cutter stock to achieve the required viscosity
  • Coker feed - FCC slurry can be blended with vacuum resid and used as feed to the coker
  • Needle coke production - Because of its high aromatics content, FCC slurry tends to form needle-like crystalline carbon structures when coked. This needle coke is highly valued for manufacturing of electrodes. An important specialty market for FCC slurry is sales to specialized needle cokers that focus on making this product
  • Carbon black production - The high aromatics content of FCC slurry makes it an excellent feedstock for the production of carbon black

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