Citation: ZHOU Lu-lu, ZHANG Jun, XU Jun-chao, YU Yan, MENG Qiang, YANG Lin-jun, YUAN Zhu-lin. Growth of fine particulates of typical coal ash components in supersaturated water environment[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(6): 754-760. shu

Growth of fine particulates of typical coal ash components in supersaturated water environment

1.
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China

Corresponding author: ZHANG Jun,
Received Date: 15 December 2014
Available Online: 23 February 2015
Fund Project: 国家重点基础研究发展规划(973计划,2013CB228504) (973计划,2013CB228504)2015年度能源高效清洁利用湖南省高校重点实验室开放基金资助(2015NGQ003)。 (2015NGQ003)

By using the droplet size meter, the growth of fine particulates of typical coal ash components, including quartz, ferric oxide, calcium sulphate and mullite, was investigated in supersaturated water environment. The supersaturated water vapor environment was built through the contact of hot water with cold air. The results show that the fine particulates with good wettability grow easily; the smaller the initial particle, the fast it grows. The temperature of hot water has a great influence on the growth of particulates; higher temperature is favorable to form larger particulates. Overall, the diameter of particulates with different physical and chemical properties can be increased to 1 to 6.6 times larger at low supersaturation.
- coal ash,
- fine particulate,
- growth,
- condensation,
- supersaturated water environment
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