Biao Sun , Xinxin Che , Feng Wu , Junhao Hao , Xiaolong Li
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引用次数: 0
Abstract
On the basis of the problem on high bed pressure drop caused by unsteady spouting during gas-solid two-phase flow in a conventional spouted bed (CSB)，a reinforced component-airflow classifier (AC) with three zones of airflow dynamics (strong airflow zone, medium airflow zone and weak airflow zone) and five channels of particle dynamic cycles is designed. By combining experiment and numerical simulation methods to analyze the dynamic characteristics of gas-solid two-phase flow, heat and mass-transfer mechanism, and desulfurization efficiency of AMSB on airflow multistage spouted bed (AMSB) combined AC with a spouted bed (CSB), the results show that the gas-solid two-phase flow of AMSB is more stable, the bed expansion rate, the particle mixing rate, and the heat and mass transfer rate of AMSB is severally 2.28 times, 3.2 times and 1.5 times that of CSB. The desulfurization efficiency is increased by 4.49 % compared with the CSB.
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.
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