Mass Transfer Coefficient in Packed Bed at Low Reynolds Number

Mass Transfer Coefficient in Packed Bed at Low Reynolds Number PDF Author: Harry Hung-Kwan Yip
Publisher:
ISBN:
Category :
Languages : en
Pages : 120

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Mass Transfer Coefficient in Packed Bed at Low Reynolds Number

Mass Transfer Coefficient in Packed Bed at Low Reynolds Number PDF Author: Harry Hung-Kwan Yip
Publisher:
ISBN:
Category :
Languages : en
Pages : 120

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Mass Transfer Controlled Reactions in Packed Beds at Low Reynolds Numbers

Mass Transfer Controlled Reactions in Packed Beds at Low Reynolds Numbers PDF Author: Peter S. Fedkiw
Publisher:
ISBN:
Category :
Languages : en
Pages : 524

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Physical Model for Mass Transfer in a Packed Bed

Physical Model for Mass Transfer in a Packed Bed PDF Author: Raymond Leon Porter
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 320

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Heat and Mass Transfer in Packed Beds

Heat and Mass Transfer in Packed Beds PDF Author: Noriaki Wakao
Publisher: Taylor & Francis
ISBN: 9780677058603
Category : Nature
Languages : en
Pages : 396

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Book Description
First published in 1982. Routledge is an imprint of Taylor & Francis, an informa company.

Mass Transfer Controlled Reactions in Packed Beds at Low Reynolds Numbers

Mass Transfer Controlled Reactions in Packed Beds at Low Reynolds Numbers PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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The a priori prediction and correlation of mass-transfer rates in transport limited, packed-bed reactors at low Reynolds numbers is examined. The solutions to the governing equations for a flow-through porous electrode reactor indicate that these devices must operate at a low space velocity to suppress a large ohmic potential drop. Packed-bed data for the mass-transfer rate at such low Reynolds numbers were examined and found to be sparse, especially in liquid systems. Prior models to simulate the solid-void structure in a bed are reviewed. Here the bed was envisioned as an array of sinusoidal periodically constricted tubes (PCT). Use of this model has not appeared in the literature. The velocity field in such a tube should be a good approximation to the converging-diverging character of the velocity field in an actual bed. The creeping flow velocity profiles were calculated. These results were used in the convective-diffusion equation to find mass transfer rates at high Peclet number for both deep and shallow beds, for low Peclet numbers in a deep bed. All calculations assumed that the reactant concentration at the tube surface is zero. Mass-transfer data were experimentally taken in a transport controlled, flow-through porous electrode to test the theoretical calculations and to provide data resently unavailable for deeper beds. It was found that the sinusoidal PCT model could not fit the data of this work or that available in the literature. However, all data could be adequately described by a model which incorporates a channelingeffect. The bed was successfully modeled as an array of dual sized straight tubes.

Heat And Mass Transfer In Fixed And Fluidized Beds

Heat And Mass Transfer In Fixed And Fluidized Beds PDF Author: W. P. M. van Swaaij
Publisher: CRC Press
ISBN: 9780891164173
Category : Fluidization
Languages : en
Pages : 752

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A New Correlation for Mass Transfer in the Flow of Gases Through Packed Beds and for the Psychrometric Ratio

A New Correlation for Mass Transfer in the Flow of Gases Through Packed Beds and for the Psychrometric Ratio PDF Author: Edward J. Lynch
Publisher:
ISBN:
Category : Hygrometry
Languages : en
Pages : 48

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Packed Bed Columns

Packed Bed Columns PDF Author: Nikolai Kolev
Publisher: Elsevier
ISBN: 0080463924
Category : Technology & Engineering
Languages : en
Pages : 709

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Book Description
Packed bed columns are largely employed for absorption, desorption, rectification and direct heat transfer processes in chemical and food industry, environmental protection and also processes in thermal power stations like water purification, flue gas heat utilization and SO2 removal. These Separation processes, are estimated to account for 40%-70% of capital and operating costs in process industry. Packed bed columns are widely employed in this area. Their usage also for direct heat transfer between gas and liquid, enlarge their importance. They are the best apparatuses, from thermodynamical point of view, for mass and heat transfer processes between gas and liquid phase. Their wide spreading is due to low capital investments and operating costs. Since 1995 there has not been published a specialised book in this area, and this is a period of quick development of packed columns. Packed Bed Columns reflects the state of this field including the author's experience on creating and investigating of new packings, column internals and industrial columns. - Considers the theories of mass transfer processes and shows how they help the construction of highly effective packings - Complete information about the performance characteristics of different modern types of highly effective packings - Considers the models for calculation and areas of their application

Mass transfer at low reynolds number in liquid fluidized beds

Mass transfer at low reynolds number in liquid fluidized beds PDF Author: Khaliqur Rahman
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Axial Dispersion in Liquid Flow Through Packed Beds

Axial Dispersion in Liquid Flow Through Packed Beds PDF Author: Steven Frank Miller
Publisher:
ISBN:
Category :
Languages : en
Pages : 98

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