Solids Flow Structures in a Two-Dimensional Riser of a Circulating Fluidized Bed

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Antonio Marzocchella¹  Antonio Cammarota¹  Leopoldo Massimilla²  Umberto Arena¹ 

[1] Istituto di Ricerche sulla Combustione, C.N.R. Piazzale V. Tecchio;Dipartimento di Ingegneria Chimica-Università di Napoli Piazzale V. Tecchio

关键词: Circulating Fluidized Beds;    Hydrodynamics of Gas-Solid Suspensions;    Regimes of Fluidization;    Motion Digital Analysis;   

DOI  :  10.1252/jcej.22.236

来源: Maruzen Company Ltd

【 摘 要 】

References(20)Cited-By(16)A two-dimensional riser with transparent walls has been successfully operated in a CFB loop. Solids flow structures have been investigated through the glass front wall by means of a motion analysis system. Slugs and gas-percolated plugs are observed in the dense and dilute regions of the riser respectively. Particle aggregates in the riser have elongated shapes and are not dispersed but are structured as solids streaks flowing in converging and diverging branches. The latter appear like small slugs extending on a fraction of the riser width only.

【 授权许可】

Unknown