Apparatus for mixing in catalytic cracker reactor
AssigneeShell USA, Inc.
InventorsRobert Alexander Ludolph, Michael Allen Basden
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Abstract
The present invention provides a catalytic cracking reactor comprising a conduit, configured to allow the passage of a flow of catalyst particles, and an injection zone comprising a ring of feed injectors extending inwardly from the wall of reactor and angled to inject feed into the flow of catalyst particles, characterised in that the reactor also comprises a contacting device protruding into the reactor from the inner wall of said reactor upstream of the injection zone.
Claims7
A fluid catalytic cracking riser reactor comprising a conduit, configured to allow the passage of a flow of catalyst particles, and an injection zone comprising a ring of feed injectors extending inwardly from the wall of reactor and angled to inject feed into the flow of catalyst particles, characterised in that the reactor also comprises a contacting device protruding into the reactor from the inner wall of said reactor upstream of the injection zone, wherein the contacting device comprises an annular element with an outer diameter equal to that of the inner diameter of the reactor.
A method of mixing a fluidised stream of catalyst particles with a hydrocarbon feed, said method comprising the steps of:
- a) creating a stream of fluidised catalyst particles in a fluid catalytic cracking riser reactor;
- b) passing said stream of fluidised catalyst particles past a contacting device protruding into the reactor from the inner wall of said reactor, wherein the contacting device comprises an annular element with an outer diameter equal to that of the inner diameter of the reactor;
- c) subsequently passing the stream of fluidised catalyst particles through an injection zone comprising a ring of feed injectors extending inwardly from the wall of reactor and contacting said stream of fluidised catalyst particles with hydrocarbon feed provided through said feed injectors;
- d) passing the stream of fluidised catalyst particles contacted with hydrocarbon feed to a downstream section of the reactor to convert the hydrocarbon feed to a converted product in the presence of the catalyst particles.
Dependencies are inferred from the claim text.