Effect of temperature and atmosphere on ash sintering characteristics of furfural residue with high K and S
文献类型：期刊论文
| 作者 | Wang, Xiaorong2; Zeng, Xi1,3; Wang, Fang1,3; Zhang, Guangyi1,3; Xu, Deping2; Xu, Guangwen3,4 |
| 刊名 | Huagong Xuebao/CIESC Journal
 |
| 出版日期 | 2022 |
| 卷号 | 73期号:1页码:411-424 |
| 关键词 | Fluidized beds - Dehydration - Heating rate - Slags - Potassium compounds - Aldehydes - Aluminosilicates - Feldspar - Atmospheric temperature - Energy utilization - Zeolites - Carbon dioxide - Furfural - Mullite |
| ISSN号 | 4381157 |
| DOI | 10.11949/0438-1157.20211237 |
| 英文摘要 | The energy utilization of furfural residue is an effective way for clean generation and carbon reduction in furfural industry. However, the existing direct combustion and utilization often face problems such as serious ash sintering caused by high K of furfural slag, large SOx emissions caused by high S, and low combustion efficiency caused by high water content. To solve these problems, in this study, a tubular furnace was employed to research the sintering behavior of furfural residue ash in the pure (N2, CO2, O2) and mixed (N2+H2O, CO2+H2O, O2+H2O) atmosphere at different temperatures. The variations of ash color, shrinking rate, micromorphology, mineral compositions and K/S release characteristics were systematically analyzed. The results show that with the increase of temperature, the ash sample shrinking rate increased. Steam played important promotion roles in ash sintering. SEM analysis indicated that the ash microstructure was melted and slaged at low temperature before sintering. XRD analysis displayed that ash sintering was closely related to the composition change of ash. N2 promoted the composition of microcline, CO2 inhibited the composition of microcline, while O2 strengthened the formation of anorthite and diopside. Steam promoted the formation of various potassium aluminum silicates such as microcline and leucite. XRF analysis indicated that, with the increase of temperature, GK (retention rate of K) and GS (retention rate of S) in ash decreased. In pure atmospheres, GK was the smallest in N2, while the effect of pure atmosphere on GS was limited. In the mixed atmospheres, compared to GK, the effect of atmospheres on GS was much more obvious, especially in O2+H2O. To restrain ash sintering and migrate K and S, the suitable operating conditions of furfural residue combustion in fluidized bed should be at temperature below 900 and lower N2 content in atmosphere by introducing a stream of flue gas. 漏 2022, Editorial Board of CIESC Journal. All right reserved. |
| 学科主题 | Sintering |
| 出版者 | Materials China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61279]  |
| 作者单位 | 1.School of Ecology and Environment, Beijing Technology and Business University, Beijing; 100048, China 2.School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing; 100083, China 3.State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 4.Key Laboratory on Resources of Chemicals and Materials of Ministry of Education, Shenyang University of Chemical Technology, Shenyang; 110142, China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaorong,Zeng, Xi,Wang, Fang,et al. Effect of temperature and atmosphere on ash sintering characteristics of furfural residue with high K and S[J]. Huagong Xuebao/CIESC Journal,2022,73(1):411-424. |
| APA | Wang, Xiaorong,Zeng, Xi,Wang, Fang,Zhang, Guangyi,Xu, Deping,&Xu, Guangwen.(2022).Effect of temperature and atmosphere on ash sintering characteristics of furfural residue with high K and S.Huagong Xuebao/CIESC Journal,73(1),411-424. |
| MLA | Wang, Xiaorong,et al."Effect of temperature and atmosphere on ash sintering characteristics of furfural residue with high K and S".Huagong Xuebao/CIESC Journal 73.1(2022):411-424. |
入库方式： OAI收割
来源：过程工程研究所
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