Process and apparatus for reacting feed with a fluidized catalyst with a reduction in catalyst loss during startup
AssigneeUop LLC
InventorsRichard A. Johnson, II, John J. Senetar, Sathit Kulprathipanja, Adam J. Kanyuh
Life of this patent
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Abstract
A fluidized catalytic reactor connected to a start-up heater is provided. The start-up heater provides sufficient heat to a catalyst containing stream to gradually increase the feed temperature. This allows for a critical volumetric flow rate to be achieved so that catalyst can be recovered from product instead of being entrained in product.
Claims13
A reactor system comprising a reactor for contacting a reactant stream with a catalyst, said system comprising
- a. a reactor and
- b. a start up heater having lines for the reactor feed stream to be sent to said reactor.
The process of claim 5 wherein said feed is at a volumetric flow rate at least 50% of a design flow rate for said reactor.
A process of start-up of a reactor comprising circulating a portion of a feed through a start-up heater to heat said feed to a temperature of at least 240 C.
Dependencies are inferred from the claim text.