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Wettability And Reactions Occurring At The Slag Carbon Interface During Pulverised Coal Injection In A Blast Furnace
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Book Synopsis Wettability and Reactions Occurring at the Slag/carbon Interface During Pulverised Coal Injection in a Blast Furnace by : Arun Shanker Mehta
Download or read book Wettability and Reactions Occurring at the Slag/carbon Interface During Pulverised Coal Injection in a Blast Furnace written by Arun Shanker Mehta and published by . This book was released on 2000 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ironmaking Conference Proceedings by :
Download or read book Ironmaking Conference Proceedings written by and published by . This book was released on 2002 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interfacial Phenomena and Dissolution of Carbon from Chars Into Liquid Iron During Pulverised Coal Injection in a Blast Furnace by : Fiona McCarthy
Download or read book Interfacial Phenomena and Dissolution of Carbon from Chars Into Liquid Iron During Pulverised Coal Injection in a Blast Furnace written by Fiona McCarthy and published by . This book was released on 2004 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Consumption of Residual Char in Blast Furnace During Coal Injection by : A. S. Mehta
Download or read book Consumption of Residual Char in Blast Furnace During Coal Injection written by A. S. Mehta and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal/char Structure and Its Influence on Char/gas Reactions During Pulverized Coal Injection in the Blast Furnace by : Liming Lu
Download or read book Coal/char Structure and Its Influence on Char/gas Reactions During Pulverized Coal Injection in the Blast Furnace written by Liming Lu and published by . This book was released on 2001 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japanese Technical Abstracts written by and published by . This book was released on 1987 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Injectant Coal Gasification, Char Formation and Char Utilisation at High Injection Rates by : European Communities
Download or read book Injectant Coal Gasification, Char Formation and Char Utilisation at High Injection Rates written by European Communities and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this project was to carry out an integrated laboratory, pilot and plant scale investigation of injectant coal gasification, char formation and properties, the effect of char on melting zone behaviour and the utilisation of char in terms of top gas dust carryover at high levels of injection. Laboratory-scale studies undertaken by Corus and Imperial College of Science, Technology and Medecine (ICSTM), focused on the degree of burnout of injectant coals, morphology and reactivity of resultant chars and an evaluation of the potential for the formation of soot precursors. Extents of gasification were related to parent coal properties and correlations between char morphology and parent coal VM content were established. The experiments also determined rates of particle mass loss under the variety of conditions that exist within the coal injection plume and made a significant contribution to the understanding of how and where volatiles are released and whether chars will be completely gasified. Centra Sviluppo Materiali (CSM) concentrated on the influence of char particles on the rheological properties of the ferrous materials in the blast furnace burden. Laboratory-scale tests under simulated blast furnace conditions on mixtures of ferrous burden, coke and char were conducted in the SMEDRA (Softening MElting DRipping Apparatus). The presence of char in the ferrous materials caused changes to the extent of initial dripping and to the starting temperature of this phenomenon. These changes correlated to the amount of char added and to the characteristics of the parent coal (the VM content and whether pulverised or granular grade) and would affect the position and the shape of the melting zone in the blast furnace. At the plant scale , ThyssenKrupp Stahl sampled blast furnaces operating with coal injection and characterised the dust collected. Tests were carried out based on the knowledge that increased graphitisation of carbon occurs with rising temperature, allowing the source of the carbon to be identified. With a new analytical method, Microwave-Assisted Dissolution, it was possible to exactly quantify the smallest quantities of graphite in top gas dust. The amount of dust discharged through the furnace top was largely determined by the percentage of non-carbonaceous components, but a clear correlation between the quantity of discharged dust and the quantity of carbonaceous components was also found. The findings also indicated that the carbon in the dust from the centre of the furnace comes mainly from ungasified injectant coal char.
Book Synopsis An Investigation of the Structure and Reactivity of Coals for Injection During Blast Furnace Ironmaking by : Jonathan Chen
Download or read book An Investigation of the Structure and Reactivity of Coals for Injection During Blast Furnace Ironmaking written by Jonathan Chen and published by . This book was released on 2006 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more efficient combustion of coal an understanding of the physical and chemical properties of char is required. In this study the effects of pyrolysis conditions on the chemical and physical properties of several North American coals were examined. Chars were prepared in conditions similar to those experienced in the blast furnace during pulverized coal injection. Amorphous fraction and average crystallite height were determined using a quantitative X-ray diffraction technique. Chemical reactivity was measured in terms of intrinsic reactivity. It can be concluded that coals most suitable for pulverized injection in the blast furnace will possess a specific chemical/physical profile as represented by the following parameters: a high and stable amorphous fraction of carbon during pyrolysis and a high reactivity. The effects of a chemical enhancer containing copper sulfate and boric acid were also examined and it is suggested that this addition lowered the ignition temperature and accelerated coal pyrolysis.
Book Synopsis The Behaviour of Mineral Matter from Pulverised Coal Injection in the Blast Furnace Raceway by : Julian Herbert
Download or read book The Behaviour of Mineral Matter from Pulverised Coal Injection in the Blast Furnace Raceway written by Julian Herbert and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Combustion Under Conditions of Blast Furnace Injection. [Quarterly] Technical Report, 1 March 1993--31 May 1993 by :
Download or read book Coal Combustion Under Conditions of Blast Furnace Injection. [Quarterly] Technical Report, 1 March 1993--31 May 1993 written by and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. The basic program is designed to determine the reactivity of both coal and its derived char under blast furnace conditions and to compare the results to similar properties of blast furnace coke. The results of the first two experiments in which coal char pyrolyzed in nitrogen at 1000°C in an EPR were reacted isothermally in air at 1000°C and 1200°C. The reactivity values of the same char in these two experiments were different by an order of magnitude. The char reactivity at 1000°C was 9.7 x 10−4 grams per minute while the reactivity. of the char at 1200°C was 1.6 x 10−3 grams per minute. These results suggest that the temperature of the blast air in the tuyere may be critical in achieving complete carbon burnout.
Book Synopsis Use of PCI in Blast Furnaces by : Anne M. Carpenter
Download or read book Use of PCI in Blast Furnaces written by Anne M. Carpenter and published by . This book was released on 2006-01-01 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts Index written by and published by . This book was released on 1995 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Production of Manganese Ferroalloys by : Sverre E. Olsen
Download or read book Production of Manganese Ferroalloys written by Sverre E. Olsen and published by Tapir Academic Press. This book was released on 2007 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in our knowledge of thermodynamics and physico-chemical factors in manganese ferroalloy production has developed rapidly during the past twenty-five years or so. The authors' intention has been to use this basic knowledge in discussions of industrial manganese ferroalloy production. The book presents the principles and current knowledge of processes in the production of high carbon ferromanganese, silicomanganese and low carbon manganese alloys. The book is intended for professionals working in production, plant design or development. It will also be useful for researchers in industry, universities and research institutes. The book can be used as a textbook for courses in extractive and process metallurgy, and for company in-house courses. Thermodynamics of the slag and metal systems are extensively covered. Computational modelling based on assessed thermochemical databases has made it possible to calculate and present a large number of phase and equilibrium diagrams. These diagrams are useful for easy understanding and analysis of the complex heterogeneous equilibria in the manganese ferroalloy metallurgy. The manganese ferroalloys are mainly produced in electric submerged arc furnaces. Electrical relations are briefly discussed. Supply of raw materials, especially manganese ores and coke, is extremely important for the manganese industry. The book gives the reader appropriate knowledge regarding the selection the best of available raw materials. Environmental issues, including greenhouse gas emissions and climate changes, are of growing concern to ferroalloy producers. Carbon will always be needed as a reducing agent, and consequently emission of CO2 gas is inevitable. The book describes solutions to dealing with pollution problems and gives the latest guidelines for greenhouse gas inventories.
Book Synopsis Ironmaking and Steelmaking Processes by : Pasquale Cavaliere
Download or read book Ironmaking and Steelmaking Processes written by Pasquale Cavaliere and published by Springer. This book was released on 2016-09-02 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes improvements in the iron and steel making process in the past few decades. It also presents new and improved solutions to producing high quality products with low greenhouse emissions. In addition, it examines legislative regulations regarding greenhouse emissions all around the world and how to control these dangerous emissions in iron and steel making plants.
Book Synopsis Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies by : Shijie Wang
Download or read book Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies written by Shijie Wang and published by Springer. This book was released on 2017-02-07 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection offers new research findings, innovations, and industrial technological developments in extractive metallurgy, energy and environment, and materials processing. Technical topics included in the book are thermodynamics and kinetics of metallurgical reactions, electrochemical processing of materials, plasma processing of materials, composite materials, ionic liquids, thermal energy storage, energy efficient and environmental cleaner technologies and process modeling. These topics are of interest not only to traditional base ferrous and non-ferrous metal industrial processes but also to new and upcoming technologies, and they play important roles in industrial growth and economy worldwide.
Book Synopsis Wetting and Wettability by : Mahmood Aliofkhazraei
Download or read book Wetting and Wettability written by Mahmood Aliofkhazraei and published by BoD – Books on Demand. This book was released on 2015-12-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the liquid 's surface, the molecules have fewer neighbors in comparison with the bulk volume. As a result, the energy interaction shows itself in the surface tension. Traditionally, the surface tension can be assumed as a force in the unit of the length which can be counted by the unit of Newton on squared meter, or energy on the units of the surface. The surface tension, implies the interface between liquid and vapor, which is an example of the surface tensions. The equilibrium between these surface tensions, decides that a droplet on a solid surface, would have a droplet form or will change to layer form. This book collects new developments in wetting and wettability science.
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