[1] Wang Ting, Jin Baosheng, Niu Miaomiao, Wang Xiaojia, et al. Numerical simulation on the fluidized bed gasificationand CaO dechlorination of refuse derived fuel [J]. Journal of Southeast University (English Edition), 2016, 32 (3): 317-321. [doi:10.3969/j.issn.1003-7985.2016.03.010]

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Numerical simulation on the fluidized bed gasificationand CaO dechlorination of refuse derived fuel()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

32

Issue:

2016 3

Page:

317-321

Research Field:

Environmental Science and Engineering

Publishing date:

2016-09-20

Info

Title:

Numerical simulation on the fluidized bed gasificationand CaO dechlorination of refuse derived fuel

Author(s):

Wang Ting;  Jin Baosheng;  Niu Miaomiao;  Wang Xiaojia;  Zhang Yong

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

Keywords:

dechlorination;  numerical simulation;  bubbling fluidized bed;  gasification;  refuse derived fuel

PACS:

X507

DOI:

10.3969/j.issn.1003-7985.2016.03.010

Abstract:

A three-dimensional numerical model verified by previous experimental data is developed to simulate the fluidized bed gasification of refuse derived fuel(RDF). The CaO dechlorination model obtained by the thermal gravity analysis(TGA)is coupled to investigate the process of CaO dechlorination. An Eulerian-Eulerian method is adopted to simulate the gas-solid flow and self-developed chemical reaction modules are used to simulate chemical reactions. Flow patterns, gasification results and dechlorination efficiency are obtained by numerical simulation. Meanwhile, simulations are performed to evaluate the effects of Ca/Cl molar ratio and temperature on dechlorination efficiency. The simulation results show that the presence of bubbles in the gasifier lowers the CaO dechlorination efficiency. Increasing the Ca/Cl molar ratio can enhance the dechlorination efficiency. However, with the temperature increasing, the dechlorination efficiency increases initially and then decreases. The optimal Ca/Cl molar ratio is in the range of 3.0 to 3.5 and the optimal temperature is 923 K.

References:

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Memo

Memo:

Biographies: Wang Ting(1990—), female, graduate; Jin Baosheng(corresponding author), male, professor, bsjin@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51476032).
Citation: Wang Ting, Jin Baosheng, Niu Miaomiao, et al. Numerical simulation on the fluidized bed gasification and CaO dechlorination of refuse derived fuel[J].Journal of Southeast University(English Edition), 2016, 32(3):317-321.DOI:10.3969/j.issn.1003-7985.2016.03.010.

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