packed bed


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packed bed

[′pakt ′bed]
(chemical engineering)
A fixed layer of small particles or objects arranged in a vessel to promote intimate contact between gases, vapors, liquids, solids, or various combinations thereof; used in catalysis, ion exchange, sand filtration, distillation, absorption, and mixing.
References in periodicals archive ?
Tenders are invited for Packed bed reactor with data logging facility
A packed bed can be defined as a number of particles dumped into a container.
Experiments were carried out in a packed bed reactor at temperatures of 400, 425 and 450C and with a hydrogen pressure of 120 bar.
Several researchers have modified the gas inlet structure to improve the flow distribution and thermal efficiency in the packed bed.
The Packed Bed Reactor Experiment could improve water filtration and life support systems, according to (http://www.
The most efficient technology available to date is the three-dimensional packed bed carriers which allow 70 times higher surface to volume ration, low shear forces and sufficient perfusion to allow media condition optimization.
Then, the installation and start-up of a packed bed reactor with continuous flow was evaluated, including among others, the evaluation of the effect of adding co-solvents to the reaction mixture.
Ozonation process using rotating packed bed is especially effective for concentrated guaiacol degradation and pre-treatment of phenol wastewater [22,49].
Values close to zero mean that the packed bed behaved close to an ideal plug flow reactor with negligible axial dispersion in the sorption column (PEREIRA et al.
An accurate description of fluid flow through packed beds and its mass and heat transfer is important to the design of packed bed reactors.