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The effect of biomass immobilization support material and bed porosity on hydrogen production in an upflow anaerobic packed-bed bioreactor
(2013)
The aim of this study was to investigate the effect of the support material used for biomass attachment and bed porosity on the potential generation of hydrogen gas in an anaerobic bioreactor treating low-strength wastewater. ...
Porosity and pore size distribution of beds composed by sugarcane bagasse and wheat bran for solid-state cultivation
(2021-07-01)
Porosity and pore size distribution are influencing factors of several physical properties of porous media. For solid-state cultivation (SSC), this structural information is also important to determine the free space ...
Evaluation of structural properties of cylindrical packed beds using numerical simulations and tomographic experiments
(De Gruyter, 2009-12-01)
This contribution is focused on the analysis of the structure of packed beds of spherical particles at relatively low aspect ratios (i.e., particle to tube diameter ratio) as those arising in multitubular fixed bed reactors. ...
Effect of radial velocity profiles on axial dispersion in packed beds: asymptotic behaviour
(Brazilian Society of Chemical Engineering, 2021-09)
Axial dispersion of a solute in a flow through packed beds arises from molecular diffusion, velocity variations at the interstitial-pore scale and systematic radial velocity profiles. Currently, there is not a widely ...
Evaluation of radial voidage profiles in packed beds of low-aspect ratios
(John Wiley & Sons Inc, 2000-12)
The relationship between the radial voidage profile, ϵ(r), and the radial distribution of centres of mono‐sized spherical particles, f(r), is revised. A close expression is given for the section S(r1, rc), the area of the ...