Question
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What is the best route for maximum propylene from a resid feed to the FCC?
Jun-2021
Answers
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Lynne Tan, BASF Refining Catalysts Asia, lynne.tan@basf.com
There are various routes for maximum propylene production and the best route is what is suitable for the respective refinery’s target and scope. Many licensors provide technological solutions to revamp existing FCC units for more propylene production but a significant investment and a long lead time are expected. A suitable catalyst design is a quick and easy alternative for FCC units to maximise propylene under existing hardware configurations.
To accomplish maximum propylene from a resid feed, a catalyst needs to have high metals tolerance to prevent activity and conversion loss due to contaminant metals, and good coke selectivity to better manage heat balance which is often a key challenge. An ideal maximum propylene catalyst will leverage on these unique characteristics to deliver optimal bottoms conversion to produce light naphtha, the precursor for propylene, and accentuates the effects of ZSM-5 to produce high propylene yield and selectivity.
Jun-2021
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