| 摘要 |
A hydrocarbon feed pipe in a fluid catalytic cracking system includes a nozzle positioned in the upper section of the riser reactor pipe. This arrangement, together with one or more feed pipes at conventional locations in the riser reactor pipe, allows for feed segregation or feed splitting processes whereby different feed flow rates and/or compositions are fed to different points in the riser reactor pipe. Feed splitting/segregating processes provide for improved product yields and product properties.
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