Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| A study on the chemical looping combustion of sewage sludge: The emission of NOx and its precursors | |
Lin, Yan1; Mo, Yuanrui5; Fang, Shiwen3; Huang, Zhen1; Wei, Guoqiang4; Zhao, Zengli1 ; Huang, Hongyu1,2
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| 2022-06-15 | |
| Source Publication | FUEL PROCESSING TECHNOLOGY
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| ISSN | 0378-3820 |
| Volume | 231Pages:8 |
| Corresponding Author | Huang, Zhen(huangzhen@ms.giec.ac.cn) |
| Abstract | Chemical looping combustion (CLC) is a promising low-NOx combustion technology for sewage sludge disposal. Herein, the emissions of NOx and its precursors (NH3 and HCN) during the pyrolysis and CLC processes are investigated on a fixed bed reactor. In particular, the effects of reaction (gas) temperature, sludge ash accumulation, and reaction intermediates (CO2 and H2O) are studied. When temperature increased from 800 to 900 degrees C, the content of gas-phase carbon is shown to increase from 57.9 to 79.7%. With ash accumulation, the NH3 generation rate increases from 10.8 to 11.7%, and the HCN generation rate decreases from 9.68 to 8.25%. Sludge ash accumulation is shown to promote the release of NH3, but inhibit the release of HCN and NOx. After 8 consecutive CLC cycles, the average removal efficiencies of NH3, HCN, and total N-containing pollutants are similar to 61%, >= 92%, and similar to 60%, respectively. The presence of CO2 and H2O in the reaction atmosphere is shown to enhance the oxidizability, thereby promoting the formation of NOx. In addition, char gasification and the reforming reaction of N-containing pollutants are promoted, thus leading to the formation of NOx precursors. Furthermore, NO is shown to be the predominant form of NOx in the CLC of sewage sludge. |
| Keyword | Chemical looping combustion Sewage sludge NOx HCN NH3 |
| DOI | 10.1016/j.fuproc.2022.107260 |
| WOS Keyword | MUNICIPAL SOLID-WASTE ; PAPER-MILL SLUDGE ; CO-PYROLYSIS ; FUEL-N ; COCOMBUSTION ; NITROGEN ; BIOMASS ; RELEASE ; COALS ; CLC |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52006224] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0108] ; Youth Innovation Promotion Association, CAS[2018384] ; Foundation and Applied Foundation Research of Guangdong Province[2019A1515110828] ; Foundation and Applied Foundation Research of Guangdong Province[2020A1515110138] ; CAS Key Laboratory of Renewable Energy[2020000022] |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| Funding Organization | National Natural Science Foundation of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Youth Innovation Promotion Association, CAS ; Foundation and Applied Foundation Research of Guangdong Province ; CAS Key Laboratory of Renewable Energy |
| WOS Subject | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000791230600006 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/36556 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Huang, Zhen |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 3.Zhongkai Univ Agr & Engn, Guangzhou 510225, Peoples R China 4.South China Agr Univ, Guangzhou 510642, Peoples R China 5.South China Univ Technol, Guangzhou 510641, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Lin, Yan,Mo, Yuanrui,Fang, Shiwen,et al. A study on the chemical looping combustion of sewage sludge: The emission of NOx and its precursors[J]. FUEL PROCESSING TECHNOLOGY,2022,231:8. |
| APA | Lin, Yan.,Mo, Yuanrui.,Fang, Shiwen.,Huang, Zhen.,Wei, Guoqiang.,...&Huang, Hongyu.(2022).A study on the chemical looping combustion of sewage sludge: The emission of NOx and its precursors.FUEL PROCESSING TECHNOLOGY,231,8. |
| MLA | Lin, Yan,et al."A study on the chemical looping combustion of sewage sludge: The emission of NOx and its precursors".FUEL PROCESSING TECHNOLOGY 231(2022):8. |
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