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| From noise to information: a new technology of olefin polymerization fluidized bed reactor based on acoustic emission |
| Hao-tong Wang, Zheng-liang Huang, Zu-wei Liao, Bin-bo Jiang, Jing-dai Wang, Yong-rong Yang, Guo-dong Han, Bao-zhu Yang |
| State Key Laboratory of Chemical Engineering & Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Tianjin Petrochemical Engineering Co. Ltd, SINOPEC, Tianjin 300270, China; Shandong Qilu Petrochemical Engineering Co. Ltd, SINOPEC, Zibo 255400, China |
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Abstract The fluidized bed is widely used in many industrial processes because of its vigorous mixing and heat transfer properties. However, when heat transfer is blocked, the particles are easily melted and agglomerated, and even cause the industrial reactor to shut down. From the point of mechanism analysis, the process of explosive agglomeration is a typical meso-scale problem in the fluidized bed, and there is a complex evolution process between particle fluidization and reactor shutdown. Grasping the regulation of meso-scale structure is one of the major challenges faced by chemical engineering. Thus, in this background, the fluidized bed acoustic emission detection technology, agglomeration fault self-repair technology, and a direct scale-up technique of the fluidized bed mathematical model were invented. These technologies have provided strong reliability for stable operation and have been successfully applied in 14 sets of industrial plants.
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Received: 15 February 2017
Published: 05 April 2017
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