2 edition of Fluidized-bed combustion of high sulfur coal found in the catalog.
Fluidized-bed combustion of high sulfur coal
Joseph S. Mei
by Dept. of Energy, Morgantown Energy Technology Center, for sale by the National Technical Information Service] in Morgantown, W.Va, [Springfield, Va
Written in English
|Statement||by J. S. Mei ... [et al.].|
|Series||METC/RI ; 79/4|
|Contributions||Morgantown Energy Technology Center., United States. Dept. of Energy.|
|The Physical Object|
|Pagination||iv, 135 p. :|
|Number of Pages||135|
Introduction. Circulating fluidized bed is a relatively new technology with the ability to achieve lower emission of pollutants. Extensive research has been conducted on this technology within the past 15 years due to increasing concerns over pollution caused by traditional methods of combusting coal . Viewpoint: Combustion FUEL QUALITY FOR FLUIDIZED BED COMBUSTORS ROD HATT Island Creek Corporation, P.O. Box , Lexington, KY Introduction When the fluidized bed combustor (FBC) was intro- duced to America, it was hailed as the savior of the high- sulfur, high-ash coal market. The design of fluidized bed.
Fluidized bed combustion Of all fossil fuels, coal exists in the largest amount. In fact, the world's coal resources appear to be sufficient to meet our energy needs for many hundreds of years. One aim of energy technology, therefore, is to find more efficient ways to make use of these coal reserves. One efficiency procedure that has been under investigation for at least two decades is known. In coal combustion, to generate electric power and process heat, the sulfur is emitted as SO2, which is seen as one of the main causes of acid rain. This effect has led to an interest in the three main methods of removing coal sulfur: coal cleaning, in-bed desulfurization, and flue gas desulfurization. Coal cleaning includes physical, chemical,File Size: KB.
The bed depth is about 3m and the fluidizing velocity around 1 m/s. In a pressurized circulating fluidized bed (PCFB), the coal and sorbent are fed into a fast fluidized bed reactor which operates at a gas velocity in the range of m/s. The solids . This book provides practicing engineers and students with insight into the design and operation of circulating fluidized bed (CFB) boilers. Through a combination of theoretical concepts and practical experience, this book gives the reader a basic understanding of the many aspects of this subject.
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In fluidized-bed combustion, any fuel, e.g. coal, oil or gas, is dispersed and burned in a fluidized bed of inert particles. In most applications the temperature of the bed is maintained in the range –°C so that combustion of the fuel is substantially completed but particle sintering is prevented.
Get this from a library. Fluidized-bed combustion of high sulfur coal. [Joseph S Mei; Morgantown Energy Technology Center.; United Fluidized-bed combustion of high sulfur coal book. Department of Energy.]. A realization of recent clean energy initiatives, fluidized bed combustion (FBC) has quickly won industry preference due to its ability to burn materials as diverse as low-grade coals, biomass, and industrial and municipal waste.
Fluidized Bed Combustion catalogs the fundamental physical and chemical processes required of bubbling fluidized beds before launching into application 5/5(2).
Downloadable (with restrictions). Sulfur release and capture behavior of lignites with highly combustible sulfur-contents were investigated by extending a previously-developed comprehensive model to incorporate sulfur retention. The predictive performance of the model was tested by comparing the model predictions with on-line concentration measurements of O2, CO2, CO and by: A fluidized-bed combustion chamber for coal is coupled to a potassium steam cycle to provide low fuel costs and reduce sulfur oxide emissions from relatively high sulfur coal.
Request PDF | Fluidized Bed Combustion of Coal, Renewable Fuels, and Waste: Current Status and Developments | Coal is a very important fuel because of its high calorific value of up to about 33 MJ Author: Franz Winter.
The main emissions from coal combustion are sulfur dioxide (SO 2), nitrogen oxides (NO x fluidized bed combustion, both atmospheric and pressurized, and integrated The book addresses many coal-related subjects of interest ranging from the chemistry of coal and the future engineering anatomy of a coal fired plant to the cutting edge.
Fluidized Bed Combustion. Although it's a method typically used in large power plants, individual inventors like the author were conducting successful experiments with efficient small scale.
Other articles where Fluidized-bed combustion is discussed: coal utilization: Fluidized bed: In fluidized-bed combustion, a bed of crushed solid particles (usually six millimetres or less) is made to behave like a fluid by an airstream passing from the bottom of the bed at sufficient velocity to suspend the material in it.
The bed material—usually. Although commercial fluidized bed power plants with capacities of over MW are available, the units have not proved as efficient as supercritical PC power plants for coal combustion.
Their sulfur and nitrogen oxide emis- sions, though lower than from an unmitigated PC power plant, are often too high to meet statutory regulations and. Circulating Fluidized Bed Technology II is a result of a series of science-related conferences in the s.
The text contains various studies, facts, and discussions on fluidized beds. The book begins by going through the rise and fall of circulating systems, specifically fluid Edition: 1.
The transformation of sulfur was experimentally investigated in a polygeneration process that integrated coal combustion and pyrolysis. High-sulfur Yanzhou coal was pyrolyzed together with circulating ash in a fixed bed. The circulating ash not only fixed some of gaseous sulfur but also decreased the sulfur remained in char compared with coal pyrolysis by: The Conference was held Novemberin Jacksonville, FL and covered such topics as: opportunity fuels, the fluid bed market, bubbling fluid bed retrofitting, waste fuel-based circulating fluidized-bed project, construction permits for major air pollution sources, fluidized bed residues, uses for fluidized bed combustion ash, ash pelletization, sorbents for FBC applications, refractory.
Circulating fluidized bed combustion (CFBC) W. N o w a k and P. M i r e k, Czestochowa University of Technology, Poland DOI: / Abstract: This chapter is devoted to basic aspects of circulating fluidized bed combustion (CFBC).
The chapter first reviews the history and current status of CFBC technology. Fluidized-bed combustion. See also what's at your library, or elsewhere. Broader term: Combustion; Related term: Fluidized-bed furnaces; Filed under: Fluidized-bed combustion Test and evaluation period ofpph atmospheric fluidized bed combustion boiler with 3, kw cogenerated electric power / ([Springfield, Ill.]: Illinois Dept.
of Energy and Natural Resources, ), by Midwest. This volume contains papers presented at the 8th International Conference on Coal Science, held in Oviedo, Spain, SeptemberVolume I contains papers dealing with Fundamentals and General Aspects, Combustion and Gasification and Pyrolysis and Carbonization.
Fluidized bed combustion is a technology that burns crushed coal mixed with limestone to neutralize acidic sulfur compounds produced during combustion. This short article about science can. Fluidized-bed combustion (FBC) is considered a viable technology for reducing U.S.
reliance on oil and natural gas. FBC-based systems can generate process steam, heat, and electric power from coal and other solid fuels of various qualities in an economical and environmentally acceptable manner.
Limestone may be added to the bed to capture sulfur dioxide SO2 formed by combustion of fuel sulfur. Emissions2,6,8 Emissions from coal combustion depend on coal type and composition, the design type and capacity of the boiler, the firing conditions, load, the type of control devices, and the level of equipment Size: 50KB.
Fluidized Bed Combustion Atmospheric fluidized beds use limestone or dolomite to capture sulfur released by the combustion of coal. Jets of air suspend the mixture of sorbent and burning coal during combustion, converting the mixture into a suspension of red-hot particles that flow like a fluid.
Circulating fluidized bed (CFB) technology has developed rapidly in recent decades due to its fuel flexibility, effective NO x formation control and high-sulfur capture efficiency. As a result, CFB technology is regarded as the best option to utilize low-quality coal [ 1 ].Cited by: 5.Fluidized Bed Combustion (FBC Boiler) “Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.”.
A bed of solid particles is said to be fluidized when the pressurized fluid (liquid or gas) is passed through the medium and causes the solid particles to behave like a fluid under certain conditions.
Fluidization causes the transformation of the state of solid.While a fluidized-bed combustion concept was utilized in the later s, coal-fired fluidized-bed combustion (FBC) was not actively developed until the late s and s (Ehrlich, ). Keywords Combustion Efficiency Electric Power Research Institute Sorbent Particle Spend Sorbent Sulfur SorbentCited by: 2.