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| Content Provider | MDPI |
|---|---|
| Author | Wang, Ping Means, Nicholas Shekhawat, Dushyant Berry, David Massoudi, Mehrdad |
| Abstract | Chemical-looping technology is one of the promising CO2 capture technologies. It generates a CO2 enriched flue gas, which will greatly benefit CO2 capture, utilization or sequestration. Both chemical-looping combustion (CLC) and chemical-looping gasification (CLG) have the potential to be used to generate power, chemicals, and liquid fuels. Chemical-looping is an oxygen transporting process using oxygen carriers. Recently, attention has focused on solid fuels such as coal. Coal chemical-looping reactions are more complicated than gaseous fuels due to coal properties (like mineral matter) and the complex reaction pathways involving solid fuels. The mineral matter/ash and sulfur in coal may affect the activity of oxygen carriers. Oxygen carriers are the key issue in chemical-looping processes. Thermogravimetric analysis (TGA) has been widely used for the development of oxygen carriers (e.g., oxide reactivity). Two proposed processes for the CLC of solid fuels are in-situ Gasification Chemical-Looping Combustion (iG-CLC) and Chemical-Looping with Oxygen Uncoupling (CLOU). The objectives of this review are to discuss various chemical-looping processes with coal, summarize TGA applications in oxygen carrier development, and outline the major challenges associated with coal chemical-looping in iG-CLC and CLOU. |
| File Size | 1506304 |
| Ending Page | 10635 |
| Page Count | 31 |
| Starting Page | 10605 |
| File Format | |
| e-ISSN | 19961073 |
| DOI | 10.3390/en81010605 |
| Journal | Energies |
| Issue Number | 10 |
| Volume Number | 8 |
| Language | English |
| Publisher Date | 2015-09-24 |
| Access Restriction | Open |
| Subject Keyword | chemical-looping combustion chemical-looping gasification coal solid fuels oxygen-carriers thermogravimetric analysis (TGA) |
| Content Type | Text |
| Resource Type | Article |
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