| Potassium release during pulverized biomass combustion in a tubular burner investigated by TDLAS | |
Sun C(孙岑)1,2 ; Wei XL(魏小林)1,2; Li T(李腾)1,2; Zhou L3; Teng QZ1,2; Li S(李森)1,2
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| Corresponding Author | Xiaolin, Wei([email protected]) |
| Source Publication | FUEL
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| 2022-06-01 | |
| Volume | 317Pages:12 |
| ISSN | 0016-2361 |
| Abstract | The ignition and effect of different treatments of pulverized biomass on potassium release were monitored online using visible light detection and calibration-free TDLAS techniques in a tubular burner, with the following main conclusions. High-speed cyclonic flow enhanced the transport effect around the particles, allowing for the rapid separation and diffusion of volatile fractions from biomass particles, as well as the rapid but transient release of potassium. There were no visible envelope flames or trailing flames around the burning particles. High-speed photography also confirmed the homo-heterogeneous ignition. The release of water-soluble potassium was significantly postponed under an O2/CO2 atmosphere compared with the air atmosphere, shifting from a quick and instantaneous model to a continuous and slow-release one. In comparison, the O2/CO2 atmosphere had little suppression effect on the exchangeable and organic potassium release process. In both air and O2/CO2 combustion, the water-soluble potassium release was the fastest, followed by organic potassium and exchangeable state potassium. The release ratio of atomic potassium, the proportion of released atomic potassium in initial total potassium in particles, from water-washed and NH3Ac-washed rice husk is higher than that from rice husk combustion, under O2/CO2 and O2/N2 combustion conditions. The release process of potassium enriched in char takes a long time but has a low release rate. The inhibitory effect of the O2/CO2 atmosphere on the potassium release during rice husk char combustion was relatively weak compared with rice husk combustion. |
| Keyword | Biomass Alkali metal Tunable diode laser absorption spectroscopy Tubular burner |
| DOI | 10.1016/j.fuel.2022.123570 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000788281800004 |
| WOS Keyword | DISPERSED COAL PARTICLES ; SODIUM RELEASE ; ZHUNDONG COAL ; NUMERICAL-SIMULATION ; ATOMIC POTASSIUM ; IGNITION ; TEMPERATURE ; BEHAVIOR ; O-2/N-2 ; ALKALI |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| Funding Project | Key Project of the National Natural Science Foundation of China[51736010] |
| Funding Organization | Key Project of the National Natural Science Foundation of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Xiaolin, Wei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88986 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Kinet, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China |
| Recommended Citation GB/T 7714 | Sun C,Wei XL,Li T,et al. Potassium release during pulverized biomass combustion in a tubular burner investigated by TDLAS[J]. FUEL,2022,317:12.Rp_Au:Xiaolin, Wei |
| APA | 孙岑,魏小林,李腾,Zhou L,Teng QZ,&李森.(2022).Potassium release during pulverized biomass combustion in a tubular burner investigated by TDLAS.FUEL,317,12. |
| MLA | 孙岑,et al."Potassium release during pulverized biomass combustion in a tubular burner investigated by TDLAS".FUEL 317(2022):12. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2022FA328_2022_Pot（6454KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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