| Optical observation and combustion properties during paper sludge fast heating | |
Teng, Qinzheng1,2 ; Sun, Cen1,2; Wei, Xiaolin1,2; Li, Sen1,2
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| Corresponding Author | Wei, Xiaolin(xlwei@imech.ac.cn) |
| Source Publication | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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| 2024-05-23 | |
| Pages | 10 |
| ISSN | 1388-6150 |
| Abstract | The challenge of paper sludge disposal has become an important environmental issue; therefore, the combustion characteristics of paper sludge need to be examined. In this paper, the combustion of paper sludge particles under different atmospheres was analysed and investigated using a flat flame burner and optical observation techniques under fast temperature rise conditions. The combustion of paper sludge could be divided into a preheating stage, volatile combustion stage, and coke combustion stage. The changes in oxygen content had different effects on the different stages of combustion. The increase in oxygen content had no significant impact on the ignition time of the sludge particles; however, the flame brightness significantly increased. The CH* free radical appeared in the most intense stage of combustion and was depleted before the volatile flame disappeared. A higher oxygen content correlated to a faster CH* depletion. The influence of the oxygen content on the combustion rate and burnout degree of the sludge particles was investigated by comparing mass loss data and heating data. The maximum temperature and heating rate also increased with increasing oxygen content. The reduced oxygen concentration could not fully penetrate the ash layer on the surface of the particles and react with the interior sludge, resulting in a lesser degree of sludge particle burnout. |
| Keyword | Combustion Biomass fuel CH* radical Paper sludge Optical observation Fast heating |
| DOI | 10.1007/s10973-024-13174-9 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001230128500007 |
| WOS Keyword | TORREFACTION |
| WOS Research Area | Thermodynamics ; Chemistry |
| WOS Subject | Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical |
| Funding Project | Key Project of the National Natural Science Foundation of China: The Migration behaviour of Alkali Metals in High Alkali Solid Fuel Combustion and Its Microregulation on Pollutant Generation ; Key Project of the National Natural Science Foundation of China |
| Funding Organization | Key Project of the National Natural Science Foundation of China: The Migration behaviour of Alkali Metals in High Alkali Solid Fuel Combustion and Its Microregulation on Pollutant Generation ; Key Project of the National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95388 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Wei, Xiaolin |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Teng, Qinzheng,Sun, Cen,Wei, Xiaolin,et al. Optical observation and combustion properties during paper sludge fast heating[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2024:10. |
| APA | Teng, Qinzheng,Sun, Cen,Wei, Xiaolin,&Li, Sen.(2024).Optical observation and combustion properties during paper sludge fast heating.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,10. |
| MLA | Teng, Qinzheng,et al."Optical observation and combustion properties during paper sludge fast heating".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2024):10. |
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