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US 2006/0138027 A1Published application
Processing of different feeds in a fluid catalytic cracking unit
AssigneeABB Lummus Global Inc.
InventorsDalip Soni, Leonce Castagnos
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AssigneeABB Lummus Global Inc.
InventorsDalip Soni, Leonce Castagnos
Estimating the term…
An apparatus and method for processing different feeds in a fluid catalytic cracking unit are disclosed which result in improved yields of C3, C4 and gasoline range hydrocarbons as compared to conventional systems. The process comprises injecting a main hydrocarbon feed into a catalyst-containing riser reactor through a plurality of main feed injectors, and injecting a light hydrocarbon feed into the riser reactor at a location upstream from the main feed injectors and downstream from a control valve such as a regenerated catalyst slide valve, the light feed being injected in a region having a high density of catalyst particles. The light feed is injected in a dispersed way such the amount of feed injected corresponds to the density of catalyst particles at that particular point, with greater amounts of feed being injected at locations having a large number of catalyst particles. Also, a heavy hydrocarbon feed or a heavy recycle stream from the same FCC unit can be injected at the same elevation as the main feed injectors but through separate injectors.
A fluid catalytic cracking process for increasing yields of C3 and C4 hydrocarbons, comprising:
A fluid catalytic cracking process for increasing yields of C3, C4 and gasoline range hydrocarbons, comprising:
A fluid catalytic cracking apparatus, comprising:
A fluid catalytic cracking apparatus, comprising:
Dependencies are inferred from the claim text.