Next generation Fluid Catalytic Cracking Catalyst Performance for butylenes maximization over propylene Fourtune™ delivers highest butylenes yields and $0.30/bbl profitability improvement.
Alkylate produced from butylenes offers a high value gasoline blendstock. FCC units supply most of the butylenes to be fed to the alkylation unit. Fourtune™ was tested in a Gasoil FCC unit that desired more butylenes and greater butylene selectivity (versus propylene) to fill its alkylation unit. The unit was already employing BASF’s Fourte™ catalyst and sought further improvements in butylene selectivity.
Fourtune™ outperformed the incumbent catalyst and generated significant profitability for the refinery via increased butylenes yields, improved butylenes selectivity and increased gasoline octane. A post audit of the Fourtune™ catalyst was performed using multiple tools, including circulating riser pilot plant testing, commercial data regression analyses and kinetic modeling.
The final analysis showed that Fourtune™ at constant conditions:
- Increased butylenes by > 0.5 vol%
- Increased butylene/propylene ratio by > 10%
- Increased gasoline RON (R+M)/2 octane by0.6
The net value to the refinery for the observed yield shifts with Fourtune™ was calculated to provide an additional return of $0.30/bbl at constant operating conditions and feed quality versus the incumbent Fourte™ catalyst employed previously. Compared to the catalyst that had been employed in this FCCU for an extended period prior to the introduction of Fourte™, the combined benefit was over $>1/bbl.
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Next generation Fluid Catalytic Cracking Catalyst Performance for butylenes maximization over propylene Fourtune™ delivers highest butylenes yields and $0.30/bbl profitability improvement. Alkylate produced from butylenes offers a high value gasoline blendstock. FCC units supply most of the butylenes ...
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