Trace element partitioning behavior of coal gangue-fired CFB plant:   experimental and equilibrium calculation

doi:10.1007/s11356-015-4738-6

CORC > 北京大学 > 工学院

	Trace element partitioning behavior of coal gangue-fired CFB plant: experimental and equilibrium calculation
	Zhang, Yingyi ; Nakano, Jinichiro ; Liu, Lili ; Wang, Xidong ; Zhang, Zuotai
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2015
关键词	Coal gangue CFB plant Trace element Equilibrium calculation POWER-PLANTS THERMODYNAMIC-EQUILIBRIUM COMBUSTION RESIDUES SHANXI PROVINCE SEWAGE-SLUDGE HEAVY-METALS FLY-ASH CHINA EMISSIONS TRANSFORMATION
DOI	10.1007/s11356-015-4738-6
英文摘要	Energy recovery is a promising method for coal gangue utilization, during which the prevention of secondary pollution, especially toxic metal emission, is a significant issue in the development of coal gangue utilization. In the present study, investigation into trace element partitioning behavior from a coal gangue-fired power plant in Shanxi province, China, has been conducted. Besides the experimental analysis, thermodynamic equilibrium calculation was also conducted to help the further understanding on the effect of different parameters. Results showed that Hg, As, Be, and Cd were highly volatile elements in the combustion of coal gangue, which were notably enriched in fly ash and may be emitted into the environment via the gas phase. Cr and Mn were mostly non-volatile and were enriched in the bottom ash. Pb, Co, Zn, Cu, and Ni were semi-volatile elements and were enriched in the fly ash to varying degrees. Equilibrium calculations show that the air/fuel ratio and the presence of Cl highly affect the element volatility. The presence of mineral phases, such as aluminosilicates, depresses the volatility of elements by chemical immobilization and competition in Cl. The coal gangue, fly ash, and bottom ash all passed the toxicity characteristic leaching procedure (TCLP), and their alkalinity buffers the acidity of the solution and contributes to the low solubility of the trace elements.; Common Development Fund of Beijing; National Natural Science Foundation of China [51472007, 51172003, 51074009]; National High Technology Research and Development Program of China (863 Program) [2012AA06A114]; China National Key Technology RD Program [2013BAC14B07]; Ministry of land and resources nonprofit industry research specific [201511062-02]; SCI(E); PubMed; ARTICLE; zuotaizhang@pku.edu.cn; 20; 15469-15478; 22
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415827]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Yingyi,Nakano, Jinichiro,Liu, Lili,et al. Trace element partitioning behavior of coal gangue-fired CFB plant: experimental and equilibrium calculation[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2015.
APA	Zhang, Yingyi,Nakano, Jinichiro,Liu, Lili,Wang, Xidong,&Zhang, Zuotai.(2015).Trace element partitioning behavior of coal gangue-fired CFB plant: experimental and equilibrium calculation.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH.
MLA	Zhang, Yingyi,et al."Trace element partitioning behavior of coal gangue-fired CFB plant: experimental and equilibrium calculation".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2015).