Characterization of Ash Particles from Co-combustion with a Zhundong Coal for Understanding Ash Deposition Behavior
| Autor: | Dunxi Yu, Weizhi Lv, Xianpeng Zeng, Bin Fan, Jingying Xu, Jun Chen |
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| Rok vydání: | 2013 |
| Předmět: |
Bituminous coal
Power station Scanning electron microscope business.industry General Chemical Engineering Metallurgy geology.rock_type geology Energy Engineering and Power Technology Mineralogy Combustion Characterization (materials science) Fuel Technology Deposition (aerosol physics) Environmental science Coal business Drop tube |
| Zdroj: | Energy & Fuels. 28:678-684 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | Co-combustion is the most attractive option for extending the utilization of Zhundong coals from the newly discovered and the largest intact coalfield in China. However, operational practices have shown that power plants frequently encounter ash deposition problems during co-combustion with Zhundong coals. To address such an issue, in the present work, coal blends of a bituminous coal and a Zhundong sub-bituminous coal, with blending ratios of 90:10, 70:30, 50:50, 30:70, and 10:90 on a weight basis, were burned on a laboratory drop tube furnace at 1350 °C. For comparison, combustion experiments of the component coals were also carried out under the same conditions. The resulting ash samples were thoroughly characterized by using a Malvern particle size analyzer and a computer controlled scanning electron microscope. The obtained data were correlated to the ash deposition behavior in co-combustion with Zhundong coals in power plant boilers. The results show that particle mass size distributions of the ash ... |
| Databáze: | OpenAIRE |
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