Citation: NIU Xin, XIAO Jun. Nitrogen transformation in chemical looping combustion of sewage sludge[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(4): 505-512. shu

Nitrogen transformation in chemical looping combustion of sewage sludge

NIU Xin ,
XIAO Jun ^*,,

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China

Corresponding author: XIAO Jun, jxiao@seu.edu.cn
Received Date: 15 November 2016
Revised Date: 8 February 2017

Fund Project: the National Natural Science Foundation of China 51476029the National Natural Science Foundation of China 51561125001the Fundamental Research Funds for the Central Universities KYLX15_0064Scientific Research Foundation of Graduate School of Southeast University YBJJ1543

Figures(8)

The experiments were conducted in a bench-scale fluidized-bed reactor. To improve the reactivity of hematite, cement was added. The results show that cement-modified hematite possessed a higher reactivity, leading to an increase in carbon conversion of sewage sludge. Nevertheless, the NO emission also increased as compared to hematite alone. The rise of fuel reactor temperature can intensify both carbon conversion and NO emission. Meanwhile, the rise of steam content can increase carbon conversion and decrease NO emission. Approximately 0.286%-0.768% of nitrogen measured was NO, which is lower than the value in sewage sludge air incineration process.
- sewage sludge,
- hematite,
- cement,
- chemical looping combustion,
- nitrogen transformation
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