Fluidized bed regenerator, device for preparing low-carbon olefins, and use thereof
US-12296329-B2 · May 13, 2025 · US
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with plural distinct serial combustion stages
with plural distinct serial combustion stages · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J38/34 |
| Official title | with plural distinct serial combustion stages |
| Display label | with plural distinct serial combustion stages |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluidized catalytic cracking regeneration apparatus and application thereof
US-2025034459-A1 · Jan 30, 2025 · US
Stripping of regenerated catalyst during start-up and shutdown
US-12109560-B2 · Oct 8, 2024 · US
Regeneration of a dehydrogenation catalyst slip-stream
US-11926800-B2 · Mar 12, 2024 · US
Stripping of regenerated catalyst during start-up and shutdown
US-2023211332-A1 · Jul 6, 2023 · US
Fluidized bed regenerator, device for preparing low-carbon olefins, and use thereof
US-2022401905-A1 · Dec 22, 2022 · US
Regeneration of a dehydrogenation catalyst slip-stream
US-2022135887-A1 · May 5, 2022 · US
Process for combustion coke from coked catalyst
US-10974238-B2 · Apr 13, 2021 · US
Process for reacting oxygen carrying regenerated catalyst prior to use in a fluidized bed reactor
US-10688477-B2 · Jun 23, 2020 · US
Catalyst regeneration
US-10654035-B2 · May 19, 2020 · US
FCC high efficiency partial burn regenerator
US-10399075-B2 · Sep 3, 2019 · US
A process for reacting oxygen carrying regenerated catalyst prior to use in a fluidized bed reactor
US-2019099745-A1 · Apr 4, 2019 · US
FCC counter-current regenerator with a regenerator riser
US-10239054-B2 · Mar 26, 2019 · US
Catalyst regeneration
US-2019046968-A1 · Feb 14, 2019 · US
Fcc counter-current regenerator
US-2018318821-A1 · Nov 8, 2018 · US
Fcc high efficiency partial burn regenerator
US-2018280964-A1 · Oct 4, 2018 · US
Fcc counter-current regenerator with a regenerator riser
US-2018178208-A1 · Jun 28, 2018 · US
Process for using a compact two-stage regenerator
US-9981261-B1 · May 29, 2018 · US
Regenerator for regenerating catalysts under different operating conditions
US-9708552-B2 · Jul 18, 2017 · US
Catalyst regenerators and methods for regenerating catalysts
US-9283533-B1 · Mar 15, 2016 · US