Investigations on biomass slagging in utility boiler: Criterion numbers and slagging growth mechanisms
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Investigations on biomass slagging in utility boiler: Criterion numbers and slagging growth mechanisms
- 发表刊物：
- Fuel Processing Technology
- 摘要：
- To solve the intractable slagging problem in biomass utility boilers, the effects of Si, Al, K, Cl, S, and initial slagging layer on slagging were performed by comparing the distinct slagging characteristics of two cotton stalks. The criterion numbers of slagging, namely, Cl ratio (Cl + K2O + Na2O)/(SiO2 + Al2O3) and S ratio (Svolatile + K2O + Na2O)/(SiO2 + Al2O3), were proposed quantitatively. When Cl ratio and S ratio are higher than 2.4 and 1.9, respectively, the biomass is easy to slag; by contrast, the slagging is low when Cl ratio and S ratio are lower than 1.0 and 0.5, respectively. The slagging growth mechanisms were further improved by coupling the alternating layer structure of the whole slagging, which was formed by the re-enrichment of fine particles that primarily contained high concentrations of K, Na, Cl, and S in the form of KCl and K3Na(SO4)2 and by the re-capture of coarse large particles that primarily contained higher Si, Al and so on. K3Na(SO4)2, originated from the interaction between sulfates, promotes the growth of the slagging. Nonetheless, the influence of K3Na(SO4)2 on slagging is minimal in comparison with KCl. The disruption or inhibition of initial slagging layer significantly weakens slagging.
- 合写作者：
- Yanqing Niu , Yiming Zhua, Houzhang Tan, et al
- 卷号：
- Volume 128
- 页面范围：
- Pages 499–508
- 是否译文：
- 否
- 发表时间：
- 2014-12-01