FCC yield selectivity improvements in high containment riser termination systems
AssigneeMarathon Petroleum Company LP
InventorsNikolas Larsen, Jeff Sexton
Life of this patent
Estimating the term…
Abstract
The invention provides an improved system for separation technology intended to reduce unwanted catalyst/thermal reactions by minimizing contact of the hydrocarbons and the catalyst within the reactor.
Claims20
A fluidic catalytic cracker reactor to increase hydrocarbon yield and decrease coke production, the fluidic catalytic cracker reactor comprising:
- a riser that passes a heated mixture of hydrocarbon and catalyst through an outlet thereof;
- a separation chamber having a top portion and a bottom portion, the outlet of the riser being received in the top portion of the separation chamber;
- one or more cyclones in fluid communication with the separation chamber;
- a baffle member positioned proximate the bottom portion of the separation chamber;
- at least one vent tube extending through the baffle member and towards the top portion of the separation chamber;
- and
- a catalyst bed positioned below the baffle member, the baffle member being configured to reduce fluidized catalyst from entering the separation chamber above the baffle member.
A fluidic catalytic cracker reactor to increase hydrocarbon yield and decrease coke production, the fluidic catalytic cracker reactor comprising:
- a riser that passes a heated mixture of hydrocarbon and catalyst through an outlet thereof;
- a separation chamber having a top portion and a bottom portion, the outlet of the riser being received in the top portion of the separation chamber, the bottom portion of the separation chamber includes at least one chamber window;
- one or more cyclones in fluid communication with the separation chamber;
- a baffle member positioned proximate the bottom portion of the separation chamber;
- and
- a catalyst bed positioned below the baffle member, the baffle member being configured to reduce fluidized catalyst from entering the separation chamber above the baffle member, and an operating level of the catalyst bed being in a range from about 125 IWC to about 170 IWC.
A fluidic catalytic cracker reactor to increase hydrocarbon yield and decrease coke production, the fluidic catalytic cracker reactor comprising:
- a riser that passes a heated mixture of hydrocarbon and catalyst through an outlet thereof;
- a separation chamber having a top portion and a bottom portion, the outlet of the riser being received in the top portion of the separation chamber;
- one or more cyclones in fluid communication with the separation chamber;
- a baffle member positioned proximate the bottom portion of the separation chamber;
- a catalyst bed positioned below the baffle member, the baffle member being configured to reduce fluidized catalyst from entering the separation chamber above the baffle member, and an operating level of the catalyst bed being in a range from about 125 IWC to about 170 IWC;
- and
- at least one vent tube to carry hydrocarbon gases from the catalyst bed to the top portion of the separation chamber.
A fluidic catalytic cracker reactor to increase hydrocarbon yield and decrease coke production, the fluidic catalytic cracker reactor comprising:
- a riser that passes a heated mixture of hydrocarbon and catalyst through an outlet thereof;
- a separation chamber having a top portion and a bottom portion, the outlet of the riser being received in the top portion of the separation chamber, the bottom portion of the separation chamber includes at least one chamber window;
- one or more cyclones in fluid communication with the separation chamber;
- a baffle member positioned proximate the bottom portion of the separation chamber and positioned to at least partially pass through the at least one chamber window;
- a catalyst bed positioned below the baffle member, the baffle member being configured to reduce fluidized catalyst from entering the separation chamber above the baffle member;
- and
- at least one vent tube to carry hydrocarbon gases from the catalyst bed to the top portion of the separation chamber.
Dependencies are inferred from the claim text.