28 Olefin Cracking
28 Olefin Cracking
28 Olefin Cracking
Naphtha
Product C2=
Furnace Recovery & C3=
Section Purification F. Gas
Section
PyGas
C4/C5 Light
Olefins
OCP
APPLICATIONS Unit
The Olefin Cracking Process was developed to utilize
low value by-product streams containing C4 to C8
olefins from steam crackers, refineries and methanol-to-
olefins plants.
REFINERY INTEGRATION a proprietary zeolitic catalyst and provides high yields
of propylene. The catalyst minimizes the reactor size
When integrated with an FCC refinery the OCP converts
and operating costs by operating at high space velocities
C4-C8 olefin rich streams from the FCC and coker units
and high conversions and selectivities without requiring
to high value light olefins, mostly propylene. The gaso-
an inert diluent stream. A swing reactor system is used
line stream is lower in olefins but retains virtually the
for catalyst regeneration. Separation facilities depend on
same octane number due to the small amount of aromat-
how the unit is integrated into the processing system.
ics formed.
Light
FCC Gasoline Olefin
Gas Oils Product
Unit Cycle Oils Olefinic
C4-C8
C2= OCP
Reactor Section
C3=
C4-C8
Olefin C4
Recovery Depropanizer
By-product
C5+ Debutanizer
LPG
OCP C5+
Unit Light By-products
Olefins