| Effects of Alkali Metals on the Formation of Particulate Matter and Adsorption of Floating Beads during Zhundong Coal Combustion | |
Zhang YF(张玉锋); Zhao J(赵京) ; Wei XL(魏小林); Li T(李腾); Qiao Y(乔宇); Xu MH
| |
| Source Publication | ENERGY & FUELS
 |
| 2019-06 | |
| Volume | 33Issue:6Pages:5422-5429 |
| ISSN | 0887-0624 |
| Abstract | Zhundong coal plays an important role in China's energy utilization. However, due to its high content of alkali metals, it produces a large amount of particulate matter during combustion. In this paper, the coal was first washed with deionized water to remove the influence of alkali-metal salts. Then, different kinds of Na salts (1% NaCl, 1% Na2SO4, and 1% NaAc) were added to the de-alkali coals. The effect of Na salts on the formation of PM10 was studied in a high-temperature drop-tube furnace at 1300 degrees C. After the addition of the Na salts, the amount of particulate matter emission was significantly increased. When 1% NaCl was added to the de-alkali coal, the amount of PM produced was 3.1 times that of the raw coal, while the amount of PM2.5 produced was 3 times that of raw coal. After adding 1% Na2SO4, the amounts of PM1 and PM2.5 produced were twice those of the raw coal. In addition, floating beads exhibit a good adsorption effect on particulate matter for the combustion of the coal with different Na salts added. The yield of ultrafine and submicrometer particles was significantly reduced when 3% floating beads were added to the de-alkali coal with Na salts added. The reductions of PM1 were 47.0% for NaCl, 51.0% for Na2SO4, and 29.4% for NaAc. Additionally, the adsorption process of floating beads on ultrafine and submicrometer particles is mainly through the reaction between alkali-metal vapors and SiO2 and Al2O3 in the sorbents. |
| DOI | 10.1021/acs.energyfuels.9b00238 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000472800900072 |
| WOS Keyword | PULVERIZED COAL ; PARTICLE FORMATION ; ASH DEPOSITION ; EARTH METALS ; EARLY-STAGE ; SODIUM ; PM2.5 ; PYROLYSIS ; EMISSIONS ; TRANSFORMATION |
| WOS Research Area | Energy & Fuels ; Engineering, Chemical |
| WOS Subject | Energy & Fuels ; Engineering |
| Funding Organization | National Key R&D Program of China [2016YFB0600601] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Wei, XL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81444 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Zhang YF,Zhao J,Wei XL,et al. Effects of Alkali Metals on the Formation of Particulate Matter and Adsorption of Floating Beads during Zhundong Coal Combustion[J]. ENERGY & FUELS,2019,33,6,:5422-5429.Rp_Au:Wei, XL |
| APA | 张玉锋,赵京,魏小林,李腾,乔宇,&Xu MH.(2019).Effects of Alkali Metals on the Formation of Particulate Matter and Adsorption of Floating Beads during Zhundong Coal Combustion.ENERGY & FUELS,33(6),5422-5429. |
| MLA | 张玉锋,et al."Effects of Alkali Metals on the Formation of Particulate Matter and Adsorption of Floating Beads during Zhundong Coal Combustion".ENERGY & FUELS 33.6(2019):5422-5429. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019537.pdf（4121KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment