Achieving waste to energy through sewage sludge gasification using hot   slags: syngas production

doi:10.1038/srep11436

CORC > 北京大学 > 工学院

	Achieving waste to energy through sewage sludge gasification using hot slags: syngas production
	Sun, Yongqi ; Nakano, Jinichiro ; Liu, Lili ; Wang, Xidong ; Zhang, Zuotai
刊名	SCIENTIFIC REPORTS
	2015
关键词	HIGH-TEMPERATURE SLAGS BLAST-FURNACE SLAG THERMAL-ANALYSIS FLUIDIZED-BED COMBUSTION RECOVERY PYROLYSIS HEAT ATMOSPHERE CONVERSION
DOI	10.1038/srep11436
英文摘要	To relieve the environmental issues of sewage sludge (SS) disposal and greenhouse gas (GHG) emission in China, we proposed an integrated method for the first time to simultaneously deal with these two problems. The hot slags below 920 degrees C could act as a good heat carrier for sludge gasification and the increasing CO2 concentration in CO2/O-2 atmospheres enhanced the production of CO and H-2 at 400-800 degrees C. Three stages of syngas release were clearly identified by Gaussian fittings, i.e., volatile release, char transformation and fixed carbon reaction. Additionally, the effect of sulfur retention of slags and the synergy effect of the stabilization of toxic elements in the solid residuals were discovered in this study. Furthermore, a novel prototype of multiple industrial and urban systems was put forward, in which the produced CO + H-2 could be utilized for direct reduced iron (DRI) production and the solid residuals of sludge ash and glassy slags would be applied as cementitious materials. For a steel plant with an annual production of crude steel of 10 million tons in China, the total annual energy saving and GHG emission reduction achieved are 3.3110(5) tons of standard coal and 1.7410(6) tons of CO2, respectively.; National High Technology Research and Development Program of China (863 Program) [2012AA06A114]; Key Projects in the National Science & Technology Pillar Program [2013BAC14B07]; Common Development Fund of Beijing; National Natural Science Foundation of China [51472007, 51272005, 51172001]; SCI(E); PubMed; ARTICLE; zuotaizhang@pku.edu.cn; 11436; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/419281]
专题	工学院
推荐引用方式 GB/T 7714	Sun, Yongqi,Nakano, Jinichiro,Liu, Lili,et al. Achieving waste to energy through sewage sludge gasification using hot slags: syngas production[J]. SCIENTIFIC REPORTS,2015.
APA	Sun, Yongqi,Nakano, Jinichiro,Liu, Lili,Wang, Xidong,&Zhang, Zuotai.(2015).Achieving waste to energy through sewage sludge gasification using hot slags: syngas production.SCIENTIFIC REPORTS.
MLA	Sun, Yongqi,et al."Achieving waste to energy through sewage sludge gasification using hot slags: syngas production".SCIENTIFIC REPORTS (2015).