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US 10,093,863 B2Granted
Gas jet injector reactor for catalytic fast pyrolysis process
AssigneeAnellotech, Inc.
InventorsTerry J. Mazanec, Jeffrey P. Whiting, Ruozhi Song, Zachary W. Goodman, Collin Schmidt
Life of this patent
Estimating the term…
Abstract
Methods and systems utilizing gas jets to carry biomass into a biomass conversion reactor are described. Reactor configurations and conditions for carrying out processes utilizing the gas jets are also described. The use of gas jets has been found to be especially desirable for operation with pyrolysis of biomass in catalytic fluidized bed reactors.
Claims33
A method for producing one or more fluid hydrocarbon products from a solid hydrocarbonaceous material in a fluidized bed reactor having a fluidization port and one or more feed ports, comprising:
- feeding a first reactant comprising the solid hydrocarbonaceous material to a fluidized bed reactor by injecting the solid hydrocarbonaceous material into a gas jet comprising a carrier fluid to produce a gas jet comprising the solid hydrocarbonaceous material and the carrier fluid, wherein the solid hydrocarbonaceous material is injected into the gas jet in discontinuous pulses;
- passing the gas jet comprising the solid hydrocarbonaceous material and the carrier fluid to the fluidized bed reactor through the one or more feed ports;
- introducing a gas through the fluidization port into the fluidized bed reactor;
- pyrolyzing at least a portion of the solid hydrocarbonaceous material in the fluidized bed reactor under conditions sufficient to produce one or more pyrolysis products;
- catalytically reacting at least a portion of the one or more pyrolysis products under reaction conditions sufficient to produce the one or more fluid hydrocarbon products;
- wherein the one or more feed ports have an angle that is downward with respect to gravity and that is at least 15 degrees from the horizontal at the point at which the one or more feed ports enters the fluidized bed reactor;
- and further comprising one or more of the following characteristics:
- wherein the carrier fluid flows through the one or more feed ports with a linear velocity of at least 25 cm/sec;
- or wherein the gas jet comprising the solid hydrocarbonaceous material and the carrier fluid are fed through the one or more feed ports into the fluidized bed reactor with a ratio of carrier fluid flow rate through the one or more feed ports to gas flow rate through the fluidization port of between 0.001 and 10.
6 more elements
A method for producing one or more pyrolysis products from a solid hydrocarbonaceous material comprising:
- feeding a first reactant comprising the solid hydrocarbonaceous material to a fluidized bed reactor comprising a distributor by injecting the solid hydrocarbonaceous material in one or more gas jets comprising a carrier gas to produce one or more gas jets comprising the solid hydrocarbonaceous material, wherein the solid hydrocarbonaceous material is injected into the gas jet in discontinuous pulses, and subsequently passing the one or more gas jets containing the solid hydrocarbonaceous material to the fluidized bed reactor through one or more feed ports, wherein the carrier gas is at a temperature of less than 200° C. at which the one or more feed ports enters the fluidized bed reactor, to form a gas mixture comprising suspended solid hydrocarbonaceous material in a lower section of the fluidized bed reactor that has a normalized temperature in the range of 100° C. to 600° C.;
- pyrolyzing at least a portion of the gas mixture comprising suspended solid hydrocarbonaceous material in a catalyzed reaction at a temperature of at least 500° C. within an upper section of the fluidized bed reactor to produce the one or more pyrolysis products;
- wherein the upper section is above the lower section with respect to gravity;
- wherein the lower section comprises a volume that includes an inner diameter of the fluidized bed reactor and a height that is at least 2% of the height of the fluidized bed reactor, and wherein the upper section comprises a volume that includes an inner diameter of the fluidized bed reactor and a height that is at least 5% of the height of the fluidized bed reactor;
- wherein the lower and upper sections are both above the distributor.
2 more elements
Dependencies are inferred from the claim text.