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| Decoupled combustion of alcohol extracted herb residues with blending wasted activated coke: Insight into in-situ NOx emission control by pyrolysis products | |
| Wang, Wenyan1,2,3; Liu, Xuan2,3; Zhang, Guangyi1,3; Zhu, Xinyu2,3; Shi, Bowen1; Zhang, Jianling3; Xu, Guangwen2 | |
| 2022-10-01 | |
| Source Publication | APPLIED ENERGY
 |
| ISSN | 0306-2619 |
| Volume | 323Pages:10 |
| Abstract | By a self-established dual fluidized bed combustion apparatus, alcohol extracted herb residues (AEHRs), as well as their derived char and on-line volatiles, were firstly directly combusted to investigate and compare the characteristics of the resulting NOx emissions; and then, the AEHRs were subjected to decoupled combustion (DC) with addition of wasted activated coke (WAC), to realize their safe disposal/clean energy recovery. The result showed that, the DC exhibited a desirable NOx reduction effect, and the on-line volatiles, especially those from pyrolysis at 600 & DEG;C, played a crucial role in the in-situ NOx control. The WAC inhibited NOx formation, due to its lower ash content and containing significantly fewer light metals (mainly K and Mg) than the AEHR char. When subjected to DC at the optimized conditions (600 C pyrolysis, 850 C combustion, excessive air ratio (ER) = 1.3 and secondary air proportion = 0.5), blending 20% WAC into the AEHR further reduced the NOx emission concentration from 217.03 to 163.82 mg m-3, corresponding to a 70.40% NOx reduction rate when compared to 553.41 mg m-3 for conventional combustion of the AEHR. Splitting the primary air revealed that the char + WAC contributed 18.81-26.51% of the total NOx reduction amount during the AEHR + WAC DC, justifying the necessity for DC to simultaneously make good use of the hot char and the on-line volatiles for reducing NOx. |
| Keyword | Alcohol extracted herb residue (AEHR) Decoupled combustion Dual fluidized bed Nitrogen oxides (NOx) In-situ nitrogen control |
| DOI | 10.1016/j.apenergy.2022.119505 |
| Language | 英语 |
| WOS Keyword | NITRIC-OXIDE ; REDUCTION ; BIOMASS ; TEMPERATURE ; ASH |
| Funding Project | National Key Research and Development Program of China[2019YFC1906805] |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| Funding Organization | National Key Research and Development Program of China |
| WOS ID | WOS:000826992500001 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/54363 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Guangyi |
| Affiliation | 1.Beijing Technol & Business Univ, Sch Ecol & Environm, Beijing 100048, Peoples R China 2.Shenyang Univ Chem Technol, Shenyang 110142, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Wenyan,Liu, Xuan,Zhang, Guangyi,et al. Decoupled combustion of alcohol extracted herb residues with blending wasted activated coke: Insight into in-situ NOx emission control by pyrolysis products[J]. APPLIED ENERGY,2022,323:10. |
| APA | Wang, Wenyan.,Liu, Xuan.,Zhang, Guangyi.,Zhu, Xinyu.,Shi, Bowen.,...&Xu, Guangwen.(2022).Decoupled combustion of alcohol extracted herb residues with blending wasted activated coke: Insight into in-situ NOx emission control by pyrolysis products.APPLIED ENERGY,323,10. |
| MLA | Wang, Wenyan,et al."Decoupled combustion of alcohol extracted herb residues with blending wasted activated coke: Insight into in-situ NOx emission control by pyrolysis products".APPLIED ENERGY 323(2022):10. |
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