Particulate Formation from a Copper Oxide-Based Oxygen Carrier in Chemical Looping Combustion for CO2 Capture
| Autor: | Shuang Deng, William P. Linak, Fanxing Li, Feng He |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Copper oxide
Kirkendall effect Chemistry 020209 energy Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry Redox Oxygen Copper Methane chemistry.chemical_compound Chemical engineering Fluidized bed 0202 electrical engineering electronic engineering information engineering Environmental Chemistry Chemical looping combustion |
| Zdroj: | Environmental Science & Technology. 51:2482-2490 |
| ISSN: | 1520-5851 0013-936X |
| DOI: | 10.1021/acs.est.6b04043 |
| Popis: | Attrition behavior and particle loss of a copper oxide-based oxygen carrier from a methane chemical looping combustion (CLC) process was investigated in a fluidized bed reactor. The aerodynamic diameters of most elutriated particulates, after passing through a horizontal settling duct, range between 2 and 5 μm. A notable number of submicrometer particulates are also identified. Oxygen carrier attrition was observed to lead to increased CuO loss resulting from the chemical looping reactions, i.e., Cu is enriched in small particles generated primarily from fragmentation in the size range of 10-75 μm. Cyclic reduction and oxidation reactions in CLC have been determined to weaken the oxygen carrier particles, resulting in increased particulate emission rates when compared to those of oxygen carriers without redox reactions. The generation rate for particulates |
| Databáze: | OpenAIRE |
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