PETROLEUM-DERIVED ADDITIVE REDUCES COKE ON HYDROTREATING CATALYST

Upgrading heavy oils is becoming increasingly important as the world crude slate gets heavier and demand for light products increases. But most upgrading processes must contend with problems related to coke formation during hydrotreating. Commonly encountered problems include catalyst decay, increased pressure drop in reactors, furnaces, heat exchangers, and other equipment, and reduced product stability.

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