Industrial Application of SL-C9-04IA/SL-C9-04IB Catalyst in Cracking C9+ Pre-hydrogenation Unit
C8+ fraction of pyrolysis gasoline is one of the main by-products of ethylene plant.The separated C9 fraction has very complex composition and contains many active components with double bonds.Its bromine value,iodine value and colloid content are high,which brings difficulties to subsequent utilization.The commercial application of SL-C9-04IASSL-C9-04IB type catalyst in the pre-hydrogenation unit of cracking C9+ was described.The influence of blending dicyclopentadiene of heavy fractions of cracking C9 on the operation of the catalyst was briefly analyzed,providing a new direction and choice for the hydrogenation of C9 fraction and helping to increase the added value of C9 product.
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