Investigation on the Influencing Factors of Sintering Characteristics of Huolinhe (HLH) Lignite Ashes

Abstract:

The sintering temperature of coal ashes plays a great important role in the design and operation of fluidized-bed gasifier. The sintering temperatures (Ts) of Huolinhe lignite (HLH) ashes under different atmospheres and pressures were tested by self-made pressure-difference measuring system. The results show that the Ts under reducing atmosphere (H₂, CO or the mixture of 50% CO and H_2, volume ratio) are lower than those of under oxidizing atmosphere (O₂, CO₂, N₂). The Ts of HLH ashes decrease with the pressure increase, it changes slightly under low pressure, and decrease clearly under 0.7~1.0 MPa, after that, decrease slightly again with the pressure increase further.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 3022-3026
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.3022
• Online since: October 2013
• Authors: Feng Hai Li*, Zhen Zhu Li, Jie Jie Huang, Yi Tian Fang
• Keywords: HLH Ashes, Influencing Factor, Pressure-Drop Technique, Sintering Characteristics

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