Slagging characteristics caused by alkali and alkaline earth metals during municipal solid waste and sewage sludge co-incineration
文献类型：期刊论文
| 作者 | Zhao J(赵京)1,2,3,4 ; Li B(李博)4; Wei XL(魏小林)2,4; Zhang YF(张玉峰)2,4; Li T(李腾)4
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| 刊名 | ENERGY
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| 出版日期 | 2020-07-01 |
| 卷号 | 202页码:8 |
| 关键词 | Municipal solid waste Sludge Co-incineration Alkali and alkaline earth metals Slagging Sludge granulation |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2020.117773 |
| 英文摘要 | Municipal solid waste (MSW) and sewage sludge co-incineration is developing into a new method for sludge treatment. However, waste and sludge containing high levels of alkali and alkaline earth metals (AAEMs) will likely cause slagging, corrosion and deterioration of materials during incineration. The occurrence of AAEMs is studied through extraction experiments. Additionally, the surface microstructure and composition of samples are analyzed by SEM-EDS. XRF and XRD are used to analyze the content and crystalline phases of AAEMs. The experimental results indicate that slagging samples are characterized by high amounts of Ca, Na, K, Cl, and S elements. The samples contain numerous irregular particles due to the condensation and nucleation of AAEMs. The extraction experiments and XRD analyses indicate that the insoluble AAEMs are primarily Ca-diopside and gehlenite and Na and K-aluminosilicates in the furnace. The ammonium acetate-soluble Ca consists mainly of sulfates, and the water-soluble Na and K consist of alkali chlorides in the superheaters. In the reaction tower, AAEMs mainly exist as carbonates and the slagging mechanisms are caused by soda manufacture process. The transformation and deposition of AAEMs enhance the slagging and reduce the heat transfer efficiency. The release of AAEMs can be effectively decreased through using sludge granulation technology during MSW and sludge co-incineration, and the furnace running time is extended. (C) 2020 Elsevier Ltd. All rights reserved. |
| 分类号 | 一类 |
| WOS关键词 | HEAVY-METALS ; FLY ASHES ; BEHAVIOR ; RELEASE ; BIOMASS ; COMBUSTION ; DEPOSITS ; CHLORIDE ; SODIUM ; TRANSFORMATION |
| WOS研究方向 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000538592700088 |
| 资助机构 | National Natural Science Foundation of China[51736010] |
| 其他责任者 | Li, Bo |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/84752]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Suzhou Hailu Heavy Ind Co Ltd, Zhangjiagang 215600, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China; 4.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhao J,Li B,Wei XL,et al. Slagging characteristics caused by alkali and alkaline earth metals during municipal solid waste and sewage sludge co-incineration[J]. ENERGY,2020,202:8. |
| APA | 赵京,李博,魏小林,张玉峰,&李腾.(2020).Slagging characteristics caused by alkali and alkaline earth metals during municipal solid waste and sewage sludge co-incineration.ENERGY,202,8. |
| MLA | 赵京,et al."Slagging characteristics caused by alkali and alkaline earth metals during municipal solid waste and sewage sludge co-incineration".ENERGY 202(2020):8. |
入库方式： OAI收割
来源：力学研究所
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