September 2020

Special Focus: Refining Technologies

Taking back what’s yours: Extractive desulfurization minimizes octane loss in FCC naphtha hydrotreating

Generating octane barrels has always been a tough road for refiners. In 2020, this road got a lot tougher with olefin saturation and octane destruction being collateral damage as refiners strive to achieve the sulfur limit in the gasoline pool.

Aggus, B., Massa, M., INVISTA Performance Technologies

Generating octane barrels has always been a tough road for refiners. In 2020, this road got a lot tougher with olefin saturation and octane destruction being collateral damage as refiners strive to achieve the sulfur limit in the gasoline pool. In the U.S., the Tier 3 day of reckoning has come. After 3 yr of utilizing accumulated sulfur credits, refiners must meet a 10-ppmw total sulfur limit in their gasoline blending pool this year. The alternative is to purchase credits from refiners who have met compliance requirements. Are refiners able to meet this new limit? Between October and November 2019, sulfur credit prices skyrocketed from $800/credit to more than $4,000/credit.1 This is a go

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