Chemical Technology
Organic Chemical Industries
GATE 2011
Medium
Zeolite ZSM-5 is added to commercial FCC catalyst for
- Apromoting SO2 reduction
- Bpromoting CO oxidation
- Cimproving tolerance to metal content in feed
- enhancing Octane number
Explanation
ZSM-5 additive selectively cracks low-octane linear paraffins in the gasoline range into olefins and lighter products, boosting the octane number of the FCC gasoline.
Source: GATE CH 2011 (2011)
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