Download or read book Ranking of Enabling Technologies for Oxy fuel Based Carbon Capture written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The USDOE National Energy Technology Laboratory (NETL) has begun a process to identify and rank enabling technologies that have significant impacts on pulverized coal oxy-fuel systems. Oxy-fuel combustion has been identified as a potential method for effectively capturing carbon in coal fired power plants. Presently there are a number of approaches for carbon capture via oxy-fuel combustion and it is important to order those approaches so that new research can concentrate on those technologies with high potentials to substantially lower the cost of reduced carbon electricity generation. NETL evaluates these technologies using computer models to determine the energy use of each technology and the potential impact of improvements in the technologies on energy production by a power plant. Near-term sub-critical boiler technologies are targeted for this analysis because: most of the world continues to build single reheat sub-critical plants; the overwhelming number of coal fired power plants requiring retrofit for CO2 capture are sub-critical plants. In addition, even in the realm of new construction, subcritical plants are common because they are well understood, easy to operate and maintain, fuel tolerant, and reliable. Following the initial investigation into sub-critical oxy-fuel technology, future investigations will move into the supercritical range.

Download or read book Advances in Materials Technology for Fossil Power Plants written by Ramaswamy Viswanathan and published by ASM International. This book was released on 2008-01-01 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: An October 2007 conference allowed scientists and engineers from around the world to exchange information on advanced, high-efficiency coal power plants. Papers from the conference are presented here, in sections on boilers, turbines, oxidation, creep/life management, welding, and oxy fuel. Some specific topics include materials solutions for advanced steam power plants, consideration of weld behavior in the design of high temperature components, nickel alloys for high efficiency fossil power plants, and material development and mechanical integrity analysis for advanced steam turbines. Other subjects are ferritic and austenitic grades for a new generation of steam power plants, the impact of steam-side oxidation on boiler heat-exchanger tube design, and oxy-combustion technology for utility coal-fired boilers.

Download or read book Studies in Advanced Oxy combustion Technologies written by Fei Xia and published by . This book was released on 2014 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2013, approximately 87 percent of the total world energy came from combustion sources. While combustion is of critical significance, it poses serious issues. The rapid increase in energy consumption, primarily from increased fossil fuel use, has raised strong concerns over the current energy infrastructure, the emissions of particulate matter, CO, SO2, and NOx, as well as global warming due to the emission of CO2. Improving combustion efficiency and reducing combustion emissions are essential. This dissertation focuses on two areas: (1) Computational fluid dynamics simulations of a novel burner design for a new oxy-fuel technology with relatively high efficiency and low emissions, and (2) numerical studies of flame structure and soot inception, interpreted in the carbon-to-oxygen atom ratio space for laminar diffusion flames. Part I. Oxy-fuel combustion is considered a promising technology for carbon capture, utilization, and storage (CCUS). One of the primary limitations on full-scale implementation of this technology is the significant increase in the cost of electricity due to a large reduction in plant efficiency and high capital costs. The fact that the CO2 captured must ultimately be pressurized for geo-sequestration or Enhanced Oil Recovery (EOR) enables pressurized oxy-combustion to be implemented at no net pumping cost because the energy to pump oxygen is comparable to that to pump CO2. At higher pressure the latent heat of condensation of the moisture in the flue gas can be utilized in the Rankine cycle, increasing the plant efficiency. A new pressurized oxy-combustion technology, namely staged, pressurized oxy-combustion (SPOC) has been developed in which the flue gas recycle is minimized by means of fuel-staged combustion. As determined through ASPEN Plus modeling, this process increases the net plant efficiency by more than 5 percentage points, compared to first-generation oxy-combustion plants. In the SPOC process, pulverized coal is combusted at high-pressure with negligible recycle. A unique burner and boiler have been designed via computational fluid dynamics (CFD) to effectively and safely burn coal under SPOC conditions. CFD is used to model the process and to determine the effects of operating conditions on the radiative and convective heat transfer in the boiler. It is shown through the simulations that a manageable wall heat flux can be achieved even with very high local gas temperatures. The system is also designed to minimize particle deposition to avoid slagging, fouling, and corrosion, and simulations of ash deposition indicate negligible deposition on the furnace wall. Radiation behavior is also studied to demonstrate radiative trapping effects. It is demonstrated, through both analytical and numerical studies, that the system pressurize is a critical tool to obtain an optically thick medium capable of trapping heat inside the furnace. It is further shown that for a sufficiently large optical thickness radiative trapping can occur, and this, combined with the diffusive-convective profiles of the temperature and absorption coefficient, allow us manage the wall heat flux. An average-temperature method is developed to approximate the heat flux and to study the dynamic relations of temperature and the absorption coefficient. The effects of ash particle size on radiative trapping are systematically studied. It is concluded that the wall heat flux is controlled by particle size as well as particle number concentration, in other words, by particle porosity and fragmentation. Ultimately, burners and boilers are designed to minimize the boiler heat transfer surface area, ash deposition, and fire-side corrosion for the SPOC system. Part II. Understanding the structure of diffusion flames is often complicated by the dependence of flame structure on the boundary conditions, such as composition, temperature, and flow field (e.g., strain rate in a counterflow flame.) The utility of interpreting flame results in the carbon-to-oxygen atom ratio (C/O ratio) space, as opposed to physical space or mixture fraction space, is evaluated. Flame and soot zone structures of counterflow diffusion flames are studied for C2H4 and C3H8 and interpreted in C/O ratio space as a function of the stoichiometric mixture fraction (Zst). The Burke-Schumann results expressed in C/O ratio space demonstrate how a clear and direct understanding of how structure is affected by Zst can be realized. In C/O ratio space, unlike physical or mixture fraction space, the flame location is independent of the stoichiometric mixture fraction. Numerical results with detailed chemical kinetics also indicate that C/O ratio space is a fundamental variable in the sense that, for a given fuel, the location of the flame zones and critical reactions is invariant with Zst and strain rate. Two zones are clearly observed, the radical pool zone and the soot precursor zone which is located on the fuel side of the flame. The onset threshold of soot precursors (C6H5 and C6H6) on the high temperature side of the soot precursor zone is characterized by the depletion of radicals. The role of the hydrogen radical in flame structure and soot inception is demonstrated by studying its production and consumption channels in C/O ratio space, as are the roles of C2H2 in soot precursor depletion and boundary coincidence. The kinetic ratio is used to study the characteristics of key chemical reactions and to identify regions of equilibrium for these reactions. Finally, a modified C/O ratio ((C/O)*) is given to interpret the physical meaning of C/O ratio. The numerical results in this work indicate and explain the advantages of applying C/O ratio space in the analysis of flame structure and soot precursor chemistry.

Download or read book Oxy Fuel Combustion for Power Generation and Carbon Dioxide CO2 Capture written by L Zheng and published by Elsevier. This book was released on 2011-02-26 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxy-fuel combustion is currently considered to be one of the major technologies for carbon dioxide (CO2) capture in power plants. The advantages of using oxygen (O2) instead of air for combustion include a CO2-enriched flue gas that is ready for sequestration following purification and low NOx emissions. This simple and elegant technology has attracted considerable attention since the late 1990s, rapidly developing from pilot-scale testing to industrial demonstration. Challenges remain, as O2 supply and CO2 capture create significant energy penalties that must be reduced through overall system optimisation and the development of new processes.Oxy-fuel combustion for power generation and carbon dioxide (CO2) capture comprehensively reviews the fundamental principles and development of oxy-fuel combustion in fossil-fuel fired utility boilers. Following a foreword by Professor János M. Beér, the book opens with an overview of oxy-fuel combustion technology and its role in a carbon-constrained environment. Part one introduces oxy-fuel combustion further, with a chapter comparing the economics of oxy-fuel vs. post-/pre-combustion CO2 capture, followed by chapters on plant operation, industrial scale demonstrations, and circulating fluidized bed combustion. Part two critically reviews oxy-fuel combustion fundamentals, such as ignition and flame stability, burner design, emissions and heat transfer characteristics, concluding with chapters on O2 production and CO2 compression and purification technologies. Finally, part three explores advanced concepts and developments, such as near-zero flue gas recycle and high-pressure systems, as well as chemical looping combustion and utilisation of gaseous fuel.With its distinguished editor and internationally renowned contributors, Oxy-fuel combustion for power generation and carbon dioxide (CO2) capture provides a rich resource for power plant designers, operators, and engineers, as well as academics and researchers in the field. - Comprehensively reviews the fundamental principles and development of oxy-fuel combustion in fossil-fuel fired utility boilers - Provides an overview of oxy-fuel combustion technology and its role in a carbon-constrained environment - Introduces oxy-fuel combustion comparing the economics of oxy-fuel vs. post-/pre-combustion CO2 capture

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

Download or read book Combustion Engineering Issues for Solid Fuel Systems written by Bruce G. Miller and published by Academic Press. This book was released on 2008 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; Coal Characteristics; Characteristics of Alternative Fuels; Characteristics and Behavior of Inorganic Constituents; Fuel Blending for Combustion Management; Fuel Preparation; Conventional Firing Systems; Fluidized-Bed Firing Systems; Post-Combustion Emissions Control; Some Computer Applications for Combustion Engineering with Solid Fuels; Gasification; Policy Considerations for Combustion Engineering.

Download or read book Advances in Carbon Capture written by Mohammad Reza Rahimpour and published by Woodhead Publishing. This book was released on 2020-08-04 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Carbon Capture reviews major implementations of CO2 capture, including absorption, adsorption, permeation and biological techniques. For each approach, key benefits and drawbacks of separation methods and technologies, perspectives on CO2 reuse and conversion, and pathways for future CO2 capture research are explored in depth. The work presents a comprehensive comparison of capture technologies. In addition, the alternatives for CO2 separation from various feeds are investigated based on process economics, flexibility, industrial aspects, purification level and environmental viewpoints. - Explores key CO2 separation and compare technologies in terms of provable advantages and limitations - Analyzes all critical CO2 capture methods in tandem with related technologies - Introduces a panorama of various applications of CO2 capture

Download or read book Advances in Carbon Management Technologies written by Subhas Sikdar and published by CRC Press. This book was released on 2020-03-19 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Carbon Management Technologies comprises 43 chapters contributed by experts from all over the world. Volume 1 of the book, containing 23 chapters, discusses the status of technologies capable of yielding substantial reduction of carbon dioxide emissions from major combustion sources. Such technologies include renewable energy sources that can replace fossil fuels and technologies to capture CO2 after fossil fuel combustion or directly from the atmosphere, with subsequent permanent long-term storage. The introductory chapter emphasizes the gravity of the issues related to greenhouse gas emissionglobal temperature correlation, the state of the art of key technologies and the necessary emission reductions needed to meet international warming targets. Section 1 deals with global challenges associated with key fossil fuel mitigation technologies, including removing CO2 from the atmosphere, and emission measurements. Section 2 presents technological choices for coal, petroleum, and natural gas for the purpose of reducing carbon footprints associated with the utilization of such fuels. Section 3 deals with promising contributions of alternatives to fossil fuels, such as hydropower, nuclear, solar photovoltaics, and wind. Chapter 19 of this book is freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license.

Download or read book Essentials of Fluidization Technology written by John R. Grace and published by John Wiley & Sons. This book was released on 2020-03-19 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise and clear treatment of the fundamentals of fluidization, with a view to its applications in the process and energy industries.

Download or read book Exploring Opportunities and Enabling Technologies for Carbon Capture and Storage in China written by and published by . This book was released on 2009 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this presentation, Liu: (1) explores major opportunities for deployment of carbon capture and sequestration (CCS) technologies in China; (2) identifies critical enabling technologies for CCS to underpin future Chinese capacity to respond to climate change; (3) and assesses China's capabilities to develop critical CCS enabling technologies.

Download or read book Cutting Edge Technology for Carbon Capture Utilization and Storage written by Karine Ballerat-Busserolles and published by John Wiley & Sons. This book was released on 2018-04-18 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compiled from a conference on this important subject by three of the most well-known and respected editors in the industry, this volume provides some of the latest technologies related to carbon capture, utilization and, storage (CCUS). Of the 36 billon tons of carbon dioxide (CO2) being emitted into Earth's atmosphere every year, only 40 million tons are able to be captured and stored. This is just a fraction of what needs to be captured, if this technology is going to make any headway in the global march toward reversing, or at least reducing, climate change. CO2 capture and storage has long been touted as one of the leading technologies for reducing global carbon emissions, and, even though it is being used effectively now, it is still an emerging technology that is constantly changing. This volume, a collection of papers presented during the Cutting-Edge Technology for Carbon Capture, Utilization, and Storage (CETCCUS), held in Clermont-Ferrand, France in the fall of 2017, is dedicated to these technologies that surround CO2 capture. Written by some of the most well-known engineers and scientists in the world on this topic, the editors, also globally known, have chosen the most important and cutting-edge papers that address these issues to present in this groundbreaking new volume, which follows their industry-leading series, Advances in Natural Gas Engineering, a seven-volume series also available from Wiley-Scrivener. With the ratification of the Paris Agreement, many countries are now committing to making real progress toward reducing carbon emissions, and this technology is, as has been discussed for years, one of the most important technologies for doing that. This volume is a must-have for any engineer or scientist working in this field.

Download or read book Materials Components in Fossil Energy Applications written by and published by . This book was released on with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Water Development Appropriations for 2015 Department of Energy Environmental Management FY 2015 budget applied energy funding FY 2015 budget science FY 2015 budget written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 2014 with total page 1564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Environmental Performance of Hypothetical Canadian Oxy Fuel Combustion Carbon Capture with Risk and Cost Analyses written by Jarotwan Koiwanit and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Negative Emissions Technologies and Reliable Sequestration written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-04-08 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: To achieve goals for climate and economic growth, "negative emissions technologies" (NETs) that remove and sequester carbon dioxide from the air will need to play a significant role in mitigating climate change. Unlike carbon capture and storage technologies that remove carbon dioxide emissions directly from large point sources such as coal power plants, NETs remove carbon dioxide directly from the atmosphere or enhance natural carbon sinks. Storing the carbon dioxide from NETs has the same impact on the atmosphere and climate as simultaneously preventing an equal amount of carbon dioxide from being emitted. Recent analyses found that deploying NETs may be less expensive and less disruptive than reducing some emissions, such as a substantial portion of agricultural and land-use emissions and some transportation emissions. In 2015, the National Academies published Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration, which described and initially assessed NETs and sequestration technologies. This report acknowledged the relative paucity of research on NETs and recommended development of a research agenda that covers all aspects of NETs from fundamental science to full-scale deployment. To address this need, Negative Emissions Technologies and Reliable Sequestration: A Research Agenda assesses the benefits, risks, and "sustainable scale potential" for NETs and sequestration. This report also defines the essential components of a research and development program, including its estimated costs and potential impact.

Download or read book Department of Energy fiscal year 2014 justifications written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 2013 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxy fuel Combustion Combined Cycles for Carbon Capture written by and published by . This book was released on 2015 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: