Low Rank Coals For Power Generation Fuel And Chemical Production

Low Rank Coals for Power Generation  Fuel and Chemical Production PDF
Author: Zhongyang Luo
Publisher: Woodhead Publishing Limited
ISBN: 9780081008959
Size: 66.97 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : un
Pages : 390
View: 1978

Get Book

Low-rank coals for power generation and fuel production provides a thorough introduction to lignite (brown coal) and sub-bituminous coals and explores how they can be used efficiently and economically in place of hard coal. The book examines the undesirable characteristics of low quality coals, such as high moisture content, low calorific value, and aggressive ash characteristics, and the resulting refinements to standard technologies and practices required for successful combustion, gasification and pyrolysis. The first part of this book provides a comprehensive and systematic review of the properties of low rank coals and corresponding preparation methods, such as drying, cleaning and upgrading. Power generation from low rank coals is the focus of Part 2, with chapter topics ranging from high efficiency pulverized coal combustion and circulating fluidized bed combustion to emerging areas such as chemical looping and oxyfuel combustion. The final contributions address the important subjects of coal-to-liquids, polygeneration and coke production using low rank coals, as well as the critical issue of carbon capture and storage. This book is a valuable resource for power generation engineers and researchers seeking to maximize the opportunities provided by these cheaper coal feedstocks for efficient and environmentally-compatible power generation. Presents the most in-depth treatment of low-rank coals available Addresses both power generation and fuel production Includes coverage that spans pulverized coal combustion and emerging technologies, such as CFBC, UCG, CLC, and oxyfuel combustion

Low Rank Coals

Low Rank Coals PDF
Author:
Publisher:
ISBN: 9781642240313
Size: 73.37 MB
Format: PDF, ePub, Mobi
Category :
Languages : un
Pages : 358
View: 3531

Get Book

The importance of low quality coals has emerged in current years. A major strategic concern is that the rapid growth in hard coal production has resulted in a sharp fall in the reserves- to production ratios worldwide. As hard coals are depleting rapidly, the resulting price surge and supply risks are the key challenges facing many coal consuming countries. Moreover, coal market dynamics are also changing; this change in market dynamics has forced some coal importers to seek new sources of supply, with subbituminous coal having already begun to gain attention in world markets. Low quality coals thus have an important role to play in maintaining security of coal supply. In addition, since low quality coals are generally produced by surface mining, their production costs are much lower than hard coals that are extracted through underground operations. To this end, for instance, a number of high efficiency processes are under development in Australia, Germany, Japan and the USA. All these developments in power generation, CTL, UCG, drying and upgrading are likely to ensure a sustainable future for low quality coals. Low-rank Coals for Power Generation, Fuel and Chemical Production discusses the current status of utilization of low quality coals for power generation worldwide. It provides a comprehensive and systematic review of the properties of low-rank coals Power generation using low quality coals is dominated by Pulverised Coal Combustion (PCC) plants. Although the majority of PCC plants use subcritical technologies, a number of new plants have adopted supercritical steam conditions at large scale. This book will presents research results and reviews discussing the impact of coal characteristics, operational experience gained with low quality coals, and future trend of development. This book is a valuable information resource for power generation engineers and researchers seeking to maximize the opportunities provided by these cheaper coal feedstock for effective and eco-friendly power generation.

Low Rank Coals For Power Generation Fuel And Chemical Production

Low rank Coals for Power Generation  Fuel and Chemical Production PDF
Author: Zhongyang Luo
Publisher: Woodhead Publishing
ISBN: 0081009291
Size: 19.77 MB
Format: PDF, ePub, Docs
Category : Technology & Engineering
Languages : en
Pages : 366
View: 2481

Get Book

Low-Rank Coals for Power Generation, Fuel and Chemical Production provides a thorough introduction to lignite (brown coal) and subbituminous coals and explores how they can be used efficiently and economically in place of hard coal. The book examines the undesirable characteristics of low-quality coals, such as high moisture content, low calorific value, and aggressive ash characteristics, and the resulting refinements to standard technologies and practices required for successful combustion, gasification, and pyrolysis. The first part of this book provides a comprehensive and systematic review of the properties of low-rank coals and corresponding preparation methods, such as drying, cleaning, and upgrading. Power generation from low-rank coals is the focus of Part 2, with chapter topics ranging from high efficiency pulverized coal combustion and circulating fluidized bed combustion to emerging areas such as chemical looping and oxyfuel combustion. The final contributions address the important subjects of coal-to-liquids,polygeneration and coke production using low-rank coals, as well as the critical issue of carbon capture and storage. This book is a valuable resource for power generation engineers and researchers seeking to maximize the opportunities provided by these cheaper coal feedstocks for efficient and environmentally compatible power generation. Presents the most in-depth treatment of low-rank coals available Addresses both power generation and fuel production Includes coverage that spans pulverized coal combustion and emerging technologies, such as CFBC, UCG, CLC, and oxyfuel combustion

Energy Storage

Energy Storage PDF
Author: Manuel Bailera
Publisher: Springer Nature
ISBN: 3030465276
Size: 33.69 MB
Format: PDF, Kindle
Category : Technology & Engineering
Languages : en
Pages : 135
View: 6351

Get Book

This book presents a detailed analysis of Power-to-Gas, a promising energy storage technology. It discusses the main mechanisms involved, and presents two Power-to-Gas and carbon capture hybridizations. The book begins by providing an introduction to energy storage technologies. It then reviews a number of Power-to-Gas projects now in progress, highlighting the current barriers to commercializing the technology. Moreover, the book presents two novel Power-to-Gas hybridizations, which improve the technology’s applicability in terms of efficiency, utilization of resources and profitability. Given its scope, the book will be of interest to graduate students, researchers and practitioners in the fields of engineering and energy.

Fuel For The Future

Fuel for the Future PDF
Author: George Domazetis
Publisher: Cambridge Scholars Publishing
ISBN: 1527538230
Size: 47.50 MB
Format: PDF, Mobi
Category : Technology & Engineering
Languages : un
Pages : 384
View: 7002

Get Book

We are currently facing a global problem caused by increasing levels of greenhouse gases, mostly derived from fossil fuels, resulting in climate change. Communities want an affordable and secure supply of power alongside emissions reductions. Coal electricity generation offers a secure and affordable supply, but, currently, this comes with high emissions. This volume examines efforts by both industry and governments to develop a cleaner use of low rank coals. It presents leading research on creating affordable, high-quality fuel for efficient power generation, with a trajectory toward affordable zero-emissions production. This book will be of interest to organisations active in developing clean usage of coal and which conduct research on low emissions power. It will also contribute to policy development of low-, and zero-emissions coal power generation, particularly in regions with abundant deposits of low-cost brown coal, lignite, and subbituminous coal, including the US, China, Europe, India, Indonesia, and Australia.

Microbial Transformations Of Low Rank Coals

Microbial Transformations of Low Rank Coals PDF
Author: Don L. Crawford
Publisher: CRC Press
ISBN: 9780849345517
Size: 24.45 MB
Format: PDF, Mobi
Category : Science
Languages : un
Pages : 240
View: 1078

Get Book

Fifteen leading scientists active in research on the chemistry, microbiology, enzymology, and genetics of coal biotransformation summarize knowledge of the mechanisms by which bacteria and fungi metabolize the macromolecular structure of lignite coals. They also explore the potential for developing commercially viable biotransformations of low rank coals into useful chemicals and clean-burning liquid and gaseous fuels. Microbial Transformations of Low Rank Coals reviews the types of aerobic and anaerobic microbes known to transform fuel and discusses the relative potential of aerobic versus anaerobic organisms. Biochemical mechanisms used by microorganisms to solubilize, depolymerize, liquify, and gasify coal are examined. The book also reviews the potential for using microorganisms to remove organic sulfur from coal and the potential for using genetic engineering to improve coal biotransforming microorganisms.

Advanced Power Plant Materials Design And Technology

Advanced Power Plant Materials  Design and Technology PDF
Author: Dermot Roddy
Publisher: Elsevier
ISBN: 1845699467
Size: 28.12 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : un
Pages : 448
View: 680

Get Book

Fossil-fuel power plants account for the majority of worldwide power generation. Increasing global energy demands, coupled with issues of ageing and inefficient power plants, have led to new power plant construction programmes. As cheaper fossil fuel resources are exhausted and emissions criteria are tightened, utilities are turning to power plants designed with performance in mind to satisfy requirements for improved capacity, efficiency, and environmental characteristics. Advanced power plant materials, design and technology provides a comprehensive reference on the state of the art of gas-fired and coal-fired power plants, their major components and performance improvement options. Part one critically reviews advanced power plant designs which target both higher efficiency and flexible operation, including reviews of combined cycle technology and materials performance issues. Part two reviews major plant components for improved operation, including advanced membrane technology for both hydrogen (H2) and carbon dioxide (CO2) separation, as well as flue gas handling technologies for improved emissions control of sulphur oxides (SOx), nitrogen oxides (NOx), mercury, ash and particulates. The section concludes with coverage of high-temperature sensors, and monitoring and control technology that are essential to power plant operation and performance optimisation. Part three begins with coverage of low-rank coal upgrading and biomass resource utilisation for improved power plant fuel flexibility. Routes to improve the environmental impact are also reviewed, with chapters detailing the integration of underground coal gasification and the application of carbon dioxide (CO2) capture and storage. Finally, improved generation performance is reviewed with coverage of syngas and hydrogen (H2) production from fossil-fuel feedstocks. With its distinguished international team of contributors, Advanced power plant materials, design and technology is a standard reference for all power plant engineers and operators, as well as to academics and researchers in this field. Provides a comprehensive reference on the state-of-the-art gas-fired and coal-fired power plants, their major components and performance improvement options Examines major plant components for improved operation as well as flue gas handling technologies for improved emissions control Routes to improve environmental impact are discussed with chapters detailing the integration of underground coal gasification

Advanced High Temperature High Pressure Transport Reactor Gasification

Advanced High Temperature  High Pressure Transport Reactor Gasification PDF
Author:
Publisher:
ISBN:
Size: 52.29 MB
Format: PDF, ePub, Mobi
Category :
Languages : un
Pages :
View: 225

Get Book

The U.S. Department of Energy (DOE) National Energy Technology Laboratory Office of Coal and Environmental Systems has as its mission to develop advanced gasification-based technologies for affordable, efficient, zero-emission power generation. These advanced power systems, which are expected to produce near-zero pollutants, are an integral part of DOE's Vision 21 Program. DOE has also been developing advanced gasification systems that lower the capital and operating costs of producing syngas for chemical production. A transport reactor has shown potential to be a low-cost syngas producer compared to other gasification systems since its high-throughput-per-unit cross-sectional area reduces capital costs. This work directly supports the Power Systems Development Facility utilizing the KBR transport reactor located at the Southern Company Services Wilsonville, Alabama, site. Over 2800 hours of operation on 11 different coals ranging from bituminous to lignite along with a petroleum coke has been completed to date in the pilot-scale transport reactor development unit (TRDU) at the Energy & Environmental Research Center (EERC). The EERC has established an extensive database on the operation of these various fuels in both air-blown and oxygen-blown modes utilizing a pilot-scale transport reactor gasifier. This database has been useful in determining the effectiveness of design changes on an advanced transport reactor gasifier and for determining the performance of various feedstocks in a transport reactor. The effects of different fuel types on both gasifier performance and the operation of the hot-gas filter system have been determined. It has been demonstrated that corrected fuel gas heating values ranging from 90 to 130 Btu/scf have been achieved in air-blown mode, while heating values up to 230 Btu/scf on a dry basis have been achieved in oxygen-blown mode. Carbon conversions up to 95% have also been obtained and are highly dependent on the oxygen-coal ratio. Higher-reactivity (low-rank) coals appear to perform better in a transport reactor than the less reactive bituminous coals. Factors that affect TRDU product gas quality appear to be coal type, temperature, and air/coal ratios. Testing with a higher-ash, high-moisture, low-rank coal from the Red Hills Mine of the Mississippi Lignite Mining Company has recently been completed. Testing with the lignite coal generated a fuel gas with acceptable heating value and a high carbon conversion, although some drying of the high-moisture lignite was required before coal-feeding problems were resolved. No ash deposition or bed material agglomeration issues were encountered with this fuel. In order to better understand the coal devolatilization and cracking chemistry occurring in the riser of the transport reactor, gas and solid sampling directly from the riser and the filter outlet has been accomplished. This was done using a baseline Powder River Basin subbituminous coal from the Peabody Energy North Antelope Rochelle Mine near Gillette, Wyoming.

Drying Of Biomass Biosolids And Coal

Drying of Biomass  Biosolids  and Coal PDF
Author: Shusheng Pang
Publisher: CRC Press
ISBN: 1351000861
Size: 12.70 MB
Format: PDF, ePub, Docs
Category : Science
Languages : un
Pages : 200
View: 3316

Get Book

Drying of Biomass, Biosolids, and Coal: For Efficient Energy Supply and Environmental Benefits provides insight into advanced technologies and knowledge of the drying of biomass, biosolids, and coal in terms of improved efficiency, economics, and environmental impact. It comprehensively covers all the important aspects of drying for a variety of biomass, biosolids and coal resources. This book covers the drying of biomass, bio-solids and coal while also providing integration of the drying process with the energy system. Important issues in the commercial drying operations are tackled, including energy and exergy efficiencies, environmental impact, and potential safety concerns. It also assesses the performance of energy production plants in integration with biomass/coal drying to provide information for plant optimization. It offers in-depth analysis and data for process understanding and design, and analyzes the drying process’s effect on economics and the environment. This book is aimed at drying professionals and researchers, chemical engineers, industrial engineers, and manufacturing engineers. It will also be of use to anyone who is interested in the utilization of biomass, organic solid wastes, algae and low-rank coals for energy.