Related Experiment Video
Updated: Aug 9, 2026
06:34
Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner
Published on: October 25, 2017
Fluidized bed combustion systems integrating CO2 capture with CaO
J Carlos Abanades1, Edward J Anthony, Jinsheng Wang
1Instituto Nacional del Carbón (CSIC), Oviedo, Spain. abanades@incar.csic.es
Environmental Science & Technology
|May 12, 2005
Summary
Natural limestones are effective, low-cost sorbents for capturing carbon dioxide (CO2) in fluidized bed combustors (FBCs). This study explores novel processes for efficient CO2 separation and power generation in these systems.
Area of Science:
- Chemical Engineering
- Environmental Science
- Combustion Technology
Background:
- Carbon capture is crucial for mitigating CO2 emissions from large-scale power generation.
- Fluidized bed combustors (FBCs) offer potential for integrated pollutant capture, including SO2.
- Calcium oxide (CaO) derived from natural limestones is a candidate sorbent for high-temperature CO2 capture.
Purpose of the Study:
- To explore options for capturing CO2 using CaO in FBC systems.
- To assess the suitability of natural limestones as high-temperature sorbents for CO2 capture.
- To identify process configurations that balance CO2 separation efficiency, sorbent utilization, and power generation.
Main Methods:
- Review of existing knowledge on pollutant capture in FBCs.
- Analysis of CaO-based CO2 capture chemistry in high-temperature environments.
- Process modeling and simulation of integrated CO2 capture and combustion systems.
- Evaluation of sorbent performance and reactor design considerations.
Main Results:
- Natural limestones are identified as viable, cost-effective sorbents due to their availability and low price.
- Despite limitations in regenerability, process options were found to maintain high CO2 separation efficiency.
- Optimized operating conditions and reactor designs are crucial for effective sorbent utilization and power generation.
Conclusions:
- Integrating CO2 capture with FBC technology using natural limestone is a promising approach for a CO2-constrained world.
- Further research into sorbent performance and reactor engineering is essential for the successful implementation of these novel CO2 capture concepts.
- The study provides reference cases to guide future scientific and technical development in this area.
