A new scaling strategy for bubbling fluidized bed reactors based on population-balance model

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-01-08 DOI:10.1016/j.powtec.2025.120637

Robert J. Macías , Juan C. Maya , Farid Chejne , Carlos M. Ceballos , Andrés F. Gómez

引用次数: 0

Abstract

This work proposes a new scaling strategy for bubbling fluidized bed reactors. It is based on bubble size distribution, bubble coalescence phenomenon, and chemical reactivity, thus allowing us to deduct the dimensionless number

Φ,

which must remain around 0.45 at different scales to guarantee the fluidization regime. The proposed strategy is validated through computational simulations carried out under various operating conditions. Additionally, the limits for this scaling strategy to be valid were determined; they agree with those reported in the literature.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.