A method for in situ conversion of co2 in a catalytic cracking unit
By introducing a fluidized bed reactor and oxygen-enriched regenerated air to regenerate flue gas in the catalytic cracking unit, the problems of CO2 emission and carbon deposition in the catalytic cracking unit have been solved, achieving efficient CO2 conversion and resource utilization, and reducing energy consumption and investment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
Catalytic cracking units generate a large amount of CO2 emissions during the catalytic cracking process, and existing dry reforming technologies suffer from carbon buildup, making industrial application difficult.
A fluidized bed reactor is introduced into the catalytic cracking unit. The carbon-depositing catalyst is regenerated by oxygen-enriched regeneration air composed of CO2 and O2, generating high-concentration CO2 regenerated flue gas. This regenerated flue gas then undergoes a reforming reaction with the product dry gas and the regenerated flue gas in the reforming reactor to generate CO and H2. The carbon deposition problem is solved and heat is provided by using a catalyst circulation fluidization method.
It achieves efficient CO2 conversion and emission reduction in the catalytic cracking unit, reduces energy consumption, increases H2 and CO yields, reduces coke yield, lowers investment costs, and simplifies the process.
Smart Images
Figure CN122399682A_ABST