Download or read book Correlation for Predicting Liquid film Mass Transfer Coefficients for Countercurrently operated Random Packed Absorption Towers written by Andinarayana Sakala and published by . This book was released on 1999 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of Liquid film Mass Transfer Coefficients for Countercurrently Operated Random Packed Absorption Columns written by Hayley E. Hoffpauir and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Packed Bed Columns written by Nikolai Kolev and published by Elsevier. This book was released on 2006-08-08 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Liquid Film Mass Transfer Coefficients for Countercurrent Random Packed Absorption Columns written by Anthony B. Ponter and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Transfer Coefficients and Effective Area of Packing written by Chao Wang and published by . This book was released on 2015 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective mass transfer area (a [subscript e]), liquid film mass transfer coefficient (k [subscript L]), and gas film mass transfer coefficient (k [subscript G]) of eleven structured packings and three random packings were measured consistently in a 0.428 m packed column. Absorption of CO2 with 0.1 gmol/L NaOH with 3.05 m packing was used to measure a [subscript e], while air stripping of toluene from water with 1.83 m packing was used to measure k [subscript L], and absorption of SO2 with 0.1 gmol/L NaOH with 0.51 m packing was used to measure k [subscript G]. The experiments were conducted with liquid load changing from 2.5 to 75 m3/(m2*h) and gas flow rate from 0.6 to 2.3 m/s. Packings with surface area from 125 to 500 m2/m3 and corrugation angle from 45 to 70 degree were tested to explore the effect of packing geometries on mass transfer. The effective area increases with packing surface area and liquid flow rate, and is independent of gas velocity. The packing corrugation angle has an insignificant effect on mass transfer area. The ratio of effective area to surface area decreases as surface area increases due to the limit of packing wettability. A correlation has been developed to predict the mass transfer area with an average deviation of 11%. [Mathematical equation]. The liquid film mass transfer coefficient is only a function of liquid velocity with a power of 0.74, while the gas film mass transfer coefficient is only a function of gas velocity with a power of 0.58. Both k [subscript L] and k [subscript G] increase with packing surface area, and decrease with corrugation angle. A new concept, Mixing Point Density, was introduced to account for effect of the packing geometry on k[subscript L] and k [subscript G]. Mixing Point Density represents the frequency at which liquid film is refreshed and gas is mixed. The mixing point density can be calculated by either packing characteristic length or by surface area and corrugation angle: [mathematical equation]. The dimensionless k [subscript L] and k [subscript G] models can then be developed based on the effects of liquid/gas velocity, mixing point density, packing surface area: [mathematical equation] [mathematical equation]. Mi is the dimensionless form of Mixing Point Density (M), which is M divided by a [subscript P]3. Because Mi is only a function of corrugation angle ([Theta]), it is a convenient transformation to represent the effect of [Theta] on mass transfer parameters. An economic analysis of the absorber was conducted for a 250 MW coal-fired power plant. The optimum operating condition is between 50 to 80 % of flooding, and the optimum design is to use packing with 200 to 250 m2/m3 surface area and high corrugation angle (60 to 70 degree). The minimum total cost ranges from $4.04 to $5.83 per tonne CO2 removed with 8 m PZ.
Download or read book Packed Towers written by Reinhard Billet and published by Wiley-VCH. This book was released on 1995-02-22 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses important theoretical and practical aspects for the calculation, design and operation of packed towers. This text also outlines the advantages of packed towers, as opposed to plate towers, for saving energy and protecting the environment.
Download or read book A General Correlation for Predicting Liquid Phase Mass Transfer Coefficients for Surface Impoundments written by Phillip Douglas Lunney and published by . This book was released on 1984* with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluid Dynamics of Packed Columns written by Jerzy Mackowiak and published by Springer Science & Business Media. This book was released on 2009-12-10 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The?rstGermanedition of thebook“Fluiddynamicsofpackedcolumns with modern random and structured packings for gas/liquid systems” was published in 1991. It sold out within a few years. Added to this were numerous enquiries, in particular within the industry, prompting me to publish a second, extended edition. A packed column remains the core element of any diffusional separation process. This underlines the need for basic design principles for packed columns, which enhance the design process by making it more accurate and reliable. The SBD (suspended bed of droplets) model introduced in the ?rst German edition of the book was well received by the experts and is now used by a large number of com- nies in the industry, as it offers improved reliability in the ?uid dynamic design of packed columns. For the purpose of facilitating the design process, the SBD model was in- grated into the simulation programme ChemCAD. The software programme FDPAK, which is available for Windows, has certainly contributed to the widespread use of the SBD model. The programme is very user-friendly and the calculation results are p- sented in tabular as well as graphic form, showing ?ood load, pressure drop and hold-up diagrams in the entire operating range.
Download or read book Mass Transfer and Absorbers written by Tadeusz Hobler and published by Pergamon. This book was released on 1966 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Local Coefficients of Mass Transfer in a Packed Absorption Column written by William Rodney Millard and published by . This book was released on 1950 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mathematical Modelling for Prediction of Effective Interfacial Area and Mass Transfer Coefficients in Packed Columns for Absorption written by R. Sengupta and published by . This book was released on 1990 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The available experimental data on effective interfacial area and mass transfer coefficients in irrigated packed towers, has been analysed in a systematic manner for the cases of physical absorption and absorption with chemical reaction. Generalised correlations are developed for effective interfacial area, liquid phase and gas phase mass transfer coefficients. Further an attempt has also been made to elucidate the mechanism of mass transfer. It is expected that the correlations developed in this investigation could be utilised conveniently for designing packed absorption towers. [Authors' abstract].
Download or read book Theoretical Chemical Engineering Abstracts written by and published by . This book was released on 1984 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Equipment for Distillation Gas Absorption Phase Dispersion and Phase Separation written by Don W. Green and published by McGraw Hill Professional. This book was released on 2007-10-26 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get Cutting-Edge Coverage of All Chemical Engineering Topics— from Fundamentals to the Latest Computer Applications First published in 1934, Perry's Chemical Engineers' Handbook has equipped generations of engineers and chemists with an expert source of chemical engineering information and data. Now updated to reflect the latest technology and processes of the new millennium, the Eighth Edition of this classic guide provides unsurpassed coverage of every aspect of chemical engineering-from fundamental principles to chemical processes and equipment to new computer applications. Filled with over 700 detailed illustrations, the Eighth Edition of Perry's Chemcial Engineering Handbook features: Comprehensive tables and charts for unit conversion A greatly expanded section on physical and chemical data New to this edition: the latest advances in distillation, liquid-liquid extraction, reactor modeling, biological processes, biochemical and membrane separation processes, and chemical plant safety practices with accident case histories Inside This Updated Chemical Engineering Guide - Conversion Factors and Mathematical Symbols • Physical and Chemical Data • Mathematics • Thermodynamics • Heat and Mass Transfer • Fluid and Particle Dynamics Reaction Kinetics • Process Control • Process Economics • Transport and Storage of Fluids • Heat Transfer Equipment • Psychrometry, Evaporative Cooling, and Solids Drying • Distillation • Gas Absorption and Gas-Liquid System Design • Liquid-Liquid Extraction Operations and Equipment • Adsorption and Ion Exchange • Gas-Solid Operations and Equipment • Liquid-Solid Operations and Equipment • Solid-Solid Operations and Equipment • Size Reduction and Size Enlargement • Handling of Bulk Solids and Packaging of Solids and Liquids • Alternative Separation Processes • And Many Other Topics!
Download or read book A New Correlation for Mass Transfer in the Flow of Gases Through Packed Beds and for the Psychrometric Ratio written by Edward J. Lynch and published by . This book was released on 1959 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Absorption written by Roman Zarzycki and published by Pergamon. This book was released on 1993 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paperback. This book gives a practical account of the modern theory of calculation of absorbers for binary and multicomponent physical absorption and absorption with simultaneous chemical reaction. The book consists of two parts: the theory of absorption and the calculation of absorbers. Part I covers basic knowledge on diffusion and the theory of mass transfer in binary and multicomponent systems. Significant stress is laid on diffusion theory because this forms the basis for the absorption process. In the next chapters the fundamentals of simultaneous mass transfer and chemical reaction, the theory of the desorption of gases from liquids and the formulation of differential mass balances are discussed. Part II is devoted to the calculation of absorbers and the classification of absorbers. The chapters present calculation methods for the basic types of absorber with a detailed analysis of the calculation methods for packed, plate and bubble columns. The a
Download or read book Liquid Phase Mass Transfer Coefficients in Cocurrent Flow Gas Absorption in a Packed Column at High Liquid Flow Rates written by Raymond Celian Ufford and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Absorption Stripping written by P. Chattopadhyay and published by Asian Books Private Limited. This book was released on 2007 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorption And Stripping Are Essential Two Very Important Unit Operations Frequently Encountered In Both Cpis And Pcis. In Many Plants, Absorption & Stripping Operate In Conjunction With Distillation The Oldest Unit Operation That Emerged From Alchemists Laboratory Centuries Back.Contents: Absorption; Stripping; Hydraulics Of Operation; Design: Basic Concepts; Design: Absorbers & Strippers; Packings; Packed Tower Internals; Typical Absorptions Of Industrial Importance; Revamping Absorbers And Strippers; Cost Estimation Of Absorption Tower; Miscellaneous; Index; Etc.
