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Modeling And Simulation Of Sox And Nox Reduction Processes In Pulverized Coal Furnaces
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Book Synopsis Modeling and Simulation of SOx and NOx Reduction Processes in Pulverized Coal Furnaces by :
Download or read book Modeling and Simulation of SOx and NOx Reduction Processes in Pulverized Coal Furnaces written by and published by Cuvillier Verlag. This book was released on 2003-12-18 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT The current work briefly reviews the formation mechanisms and reduction approaches of the pollutants SOx and NOx in coal combustion and focuses on the simulation of the lower-cost in-furnace measures ƒ{ the dry additive process (DAP) for SOx reduction and the reburning as well as the advanced reburning (hybrid reburning/SNCR) techniques for NOx reduction. In addition, the influence of sulfur compounds on NOx formation is investigated. The major workings include: Simulation of the dry additive desulfurization process (DAP): Different models ƒ{ shrinking core model (SCM), pore model (PM) and grain model (GM) ƒ{ are implemented to describe the gas-particle reaction. Relevant processes such as the sintering of the additive, the self-retention by coal ash, the thermal equilibrium of the sulfation reaction are accounted for and modeled. A comprehensive model for the DAP with calcium based additives is subsequently established and integrated into a combustion CFD (computational fluid dynamics) code AIOLOS, in both Eulerian and Lagrangian schemes. The model is verified with experiments on a test reactor. Mechanism reduction and simulation of reburning/SNCR Processes: A method for reduction of kinetic mechanisms is introduced. A program tool is developed for automatic reduction of detailed reaction mechanisms. Reduced mechanisms for reburning and hybrid reburning/SNCR processes are developed and implemented into the CFD code. CFD-calculations with the reduced mechanisms are performed and compared with experimental measurements to comprehensively evaluate the simulation approach. It is shown that the detailed simulation is capable of modeling the complex reburning and SNCR processes with acceptable computing time and achieves reasonable results in wide parameter ranges. Study of the influence of sulfur compounds on NOx formation: The effect of SO2 on NOx formation is experimentally investigated and analysed with kinetic mechanisms. It is indicated that the presence of SO2 inhabits the NOx formation and reduce the NOx emissions in normal air-rich combustion. Under air-staging conditions, SO2 addition has no obvious influence on the final NOx emissions.
Download or read book Emissions Reduction written by A. Tomita and published by Elsevier. This book was released on 2001-12-18 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade the topic of emissions reduction and control has remained an important area of research due to the enforcement of various Government policies in an attempt to minimize the impact on the environment. One area in which a great deal of research has been conducted to address this policy is NOx/SOx suppression. However, despite the progress that has been made over this time period, further research into the most effective method of reducing NOx/SOx emissions is still urgently required. In developed countries, a more stringent requirement in the level of emissions (such as is NOx/SOx component of less than 10ppm) will be enforced in the near future. Developing countries will also need a new technology that is effective and that is suited to each countries needs. Additional research and development efforts are thus necessary to meet such requirements. This compendium contains a collection of key papers themed around NOx/SOx emissions from combustion of hydrocarbon resources and the attempts to secure an efficient and effective method for reducing these emissions. These key papers are taken from the journals Fuel, Fuel Processing Technology and Progress in Energy and Combustion Science.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ORD Publications Announcement by : Center for Environmental Research Information (U.S.)
Download or read book ORD Publications Announcement written by Center for Environmental Research Information (U.S.) and published by . This book was released on 1982 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Process Chemistry of Coal Utilization by : Stephen Niksa
Download or read book Process Chemistry of Coal Utilization written by Stephen Niksa and published by Woodhead Publishing. This book was released on 2021-08-26 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Process Chemistry of Coal Utilization: Chemistry Toolkit for Furnaces and Gasifiers presents a broad range of quantitative methods for solving common problems surrounding the performance of coal utilization technologies. As a logical follow up to Niksa's 2019 publication which covers the Impacts of Coal Quality and Operating Conditions (9780128187135), this book demonstrates the practical applications of the technologies previously discussed and analyzes fuel quality impacts across all regions. Stephen Niksa's wealth of experience of commercial applications of coal utilization makes this book an invaluable resource into fuel applications, cost effectiveness and policy. Relating coal conversion chemistry to practical applications in design, validation, performance and troubleshooting on a commercial scale makes this book an invaluable resource for a variety of readers. Engineers, researchers and manufacturers will gain a solid understanding of technological options and a range of alternative approaches that they can use to tailor their own testing and simulation work to effectively characterize and solve problems. - Presents a series of case studies which exemplify several analytical approaches to fuel performance and technology - Illustrates a broad range of commercial approaches with numerous practical applications to guide the reader through testing and simulation - Solves technical problems for common situations, saving readers time and enabling them to tailor their own approach
Download or read book Fossil Energy Update written by and published by . This book was released on 1984 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technologies for Converting Biomass to Useful Energy by : Erik Dahlquist
Download or read book Technologies for Converting Biomass to Useful Energy written by Erik Dahlquist and published by CRC Press. This book was released on 2013-04-16 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Officially, the use of biomass for energy meets only 10-13% of the total global energy demand of 140 000 TWh per year. Still, thirty years ago the official figure was zero, as only traded biomass was included. While the actual production of biomass is in the range of 270 000 TWh per year, most of this is not used for energy purposes, and mostly it
Book Synopsis Report summaries by : United States. Environmental Protection Agency
Download or read book Report summaries written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acid Precipitation written by and published by . This book was released on 1984 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cleaner Combustion and Sustainable World by : Haiying Qi
Download or read book Cleaner Combustion and Sustainable World written by Haiying Qi and published by Springer Science & Business Media. This book was released on 2012-11-19 with total page 1306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cleaner Combustion and Sustainable World is the proceedings of the 7th International Symposium on Coal Combustion which has a significant international influence. It concerns basic research on coal combustion and clean utilization, techniques and equipments of pulverized coal combustion, techniques and equipments of fluidized bed combustion, basic research and techniques of emission control, basic research and application techniques of carbon capture and storage (CCS), etc. Professor Haiying Qi and Bo Zhao both work at the Tsinghua University, China
Book Synopsis High Temperature Air Combustion by : Hiroshi Tsuji
Download or read book High Temperature Air Combustion written by Hiroshi Tsuji and published by CRC Press. This book was released on 2002-12-03 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maximize efficiency and minimize pollution: the breakthrough technology of high temperature air combustion (HiTAC) holds the potential to overcome the limitations of conventional combustion and allow engineers to finally meet this long-standing imperative. Research has shown that HiTAC technology can provide simultaneous reduction of CO2 and nitric
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1982 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1982 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
