An Early-Warning Method for Agglomeration Detection in Gas-Solid Fluidized Bed Based on Hydromechanics

Abstract:

The occurrence of agglomeration in gas-solid fluidized bed can have a very negative impact on the efficiency of reactor operation. In order to overcome the agglomeration problem, an Agglomeration Early-Warning System (AEWS) is proposed. AEWS is able to detect the event of such undesired behavior and make it possible to operate more efficiently. The sensitivity and selectivity of AEWS is illustrated with experimental results. In order to minimize the false alarm, both moving time window method and minimizing value method were analyzed. The experimental results have shown that agglomeration can be recognized 30-60min earlier with AEWS than that with conventional methods based on changes in pressure drop or temperature difference over the bed.

• Periodical: Applied Mechanics and Materials (Volume 387)
• Pages: 152-158
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.387.152
• Online since: August 2013
• Authors: Meng Guo, Wei Guo Lin, Hai Yan Wu, Zhong Zhao, Jin Wei Liu
• Keywords: Agglomeration, Early-Warning, False Alarm Rate, Sensitivity

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