Gas Absorption in a Packed Tower PDF Download
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Author: P. L. Spedding
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 46
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Book Description
Author: P. L. Spedding
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 46
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Book Description
Author: Jong Soo Cho
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 190
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Book Description
The surface renewal rate from Danckwerts' theory and the effective interfacial area between gas and liquid per unit packing volume in a packed absorption tower were evaluated for the absorption of carbon dioxide into carbonate/bicarbonate buffer solution accompanied by a pseudo-first order chemical reaction. The rate of chemical reaction in the liquid phase was controlled by varying the buffer ratios. A small absorption tower was constructed, which had a packing section, 30 cm high with 10.2 cm inside diameter. Two kinds of packing, 1/2-inch Rasehig ring for one part of the experiment and 1/2 inch Ben saddle for the other part of the experiment, were used in the investigation. Sodium carbonate/bicarbonate buffer solutions, with buffer ratios varying from 0.4 to 3.0, were used. Glycerine-water solutions were also used to investigate the effect of density and viscosity on the physical absorption of carbon dioxide; the content of glycerine varied from 0 to 40 % wt. Pure carbon dioxide was used to eliminate the gas side resistance in the mass transfer operation. The results of this investigation suggested the following conclusions: The surface renewal rate, s, and the effective interfacial area per unit packing volume, a, for each packing can be expressed as functions of Reynolds Number of the liquid flow. The comparison of values from this study with those of Danckwerts showed discrepancies; these discrepancies could be due to different flow patterns, packing densities, and the apparently more uniform distribution of liquid over the packing. The mass transfer coefficient for physical absorption into glycerine solution was expressed as a function of Reynolds number and Schmidt number. The mass transfer coefficient calculated from Danckwerts' model equation, kL*a = [Ds divided by a*] for absorption of carbon dioxide into water seemed to be larger than those measured in this experiment.
Author: Ralph F. Strigle
Publisher: Butterworth-Heinemann
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 360
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Book Description
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
Author: Billy Mock
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 308
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Book Description
Author: Cary Judson King
Publisher:
ISBN:
Category :
Languages : en
Pages : 892
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Author: Mahendrakumar C. Parekh
Publisher:
ISBN:
Category :
Languages : en
Pages : 63
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Book Description
Author: Bernard Lamar Schulman
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
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Author: Nicholas P. Chopey
Publisher: McGraw-Hill Professional Publishing
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 640
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Book Description
A compilation of the calculation procedures needed every day on the job by chemical engineers. Tables of Contents: Physical and Chemical Properties; Stoichiometry; Phase Equilibrium; Chemical-Reaction Equilibrium; Reaction Kinetics and Reactor Design; Flow of Fluids and Solids; Heat Transfer; Distillation; Extraction and Leaching; Crystallization; Filtration; Liquid Agitation; Size Reduction; Drying: Evaporation; Environmental Engineering in the Plant. Illustrations. Index.
Author: Larew W. Wheaton
Publisher:
ISBN:
Category :
Languages : en
Pages :
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