Low Rank Coals For Power Generation Fuel And Chemical Production

Download Read Online Low Rank Coals For Power Generation Fuel And Chemical Production book
Author: Zhongyang Luo
Publisher: Woodhead Publishing
ISBN: 0081009291
Size: 57.67 MB
Format: PDF, Kindle
View: 5343

Low Rank Coals For Power Generation Fuel And Chemical Production by Zhongyang Luo


Original Title: Low Rank Coals For Power Generation Fuel And Chemical Production

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

Low Rank Coals

Download Read Online Low Rank Coals book
Author:
Publisher:
ISBN: 9781642240313
Size: 16.50 MB
Format: PDF, Kindle
View: 3638

Low Rank Coals by


Original Title: Low Rank Coals

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.

Proceedings Of The 20th International Conference On Fluidized Bed Combustion

Download Read Online Proceedings Of The 20th International Conference On Fluidized Bed Combustion book
Author: Guangxi Yue
Publisher: Springer Science & Business Media
ISBN: 9783642026829
Size: 65.89 MB
Format: PDF, Docs
View: 3310

Proceedings Of The 20th International Conference On Fluidized Bed Combustion by Guangxi Yue


Original Title: Proceedings Of The 20th International Conference On Fluidized Bed Combustion

The proceedings of the 20th International Conference on Fluidized Bed Combustion (FBC) collect 9 plenary lectures and 175 peer-reviewed technical papers presented in the conference held in Xi'an China in May 18-21,2009. The conference was the 20th conference in a series, covering the latest fundamental research results, as well as the application experience from pilot plants, demonstrations and industrial units regarding to the FBC science and technology. It was co-hosted by Tsinghua University, Southeast University, Zhejiang University, China Electricity Council and Chinese Machinery Industry Federation. A particular feature of the proceedings is the balance between the papers submitted by experts from industry and the papers submitted by academic researchers, aiming to bring academic knowledge to application as well as to define new areas for research. The authors of the proceedings are the most active researchers, technology developers, experienced and representative facility operators and manufacturers. They presented the latest research results, state-of-the-art development and projects, and the useful experience. The proceedings are divided into following sections: • CFB Boiler Technology, Operation and Design • Fundamental Research on Fluidization and Fluidized Combustion • C02 Capture and Chemical Looping • Gasification • Modeling and Simulation on FBC Technology • Environments and Pollutant Control • Sustainable Fuels The proceedings can be served as idea references for researchers, engineers, academia and graduate students, plant operators, boiler manufacturers, component suppliers, and technical managers who work on FBC fundamental research, technology development and industrial application.

Coal Fired Flue Gas Mercury Emission Controls

Download Read Online Coal Fired Flue Gas Mercury Emission Controls book
Author: Jiang Wu
Publisher: Springer
ISBN: 3662463474
Size: 49.52 MB
Format: PDF, ePub, Docs
View: 7227

Coal Fired Flue Gas Mercury Emission Controls by Jiang Wu


Original Title: Coal Fired Flue Gas Mercury Emission Controls

Mercury (Hg) is one of the most toxic heavy metals, harmful to both the environment and human health. Hg is released into the atmosphere from natural and anthropogenic sources and its emission control has caused much concern. This book introduces readers to Hg pollution from natural and anthropogenic sources and systematically describes coal-fired flue gas mercury emission control in industry, especially from coal-fired power stations. Mercury emission control theory and experimental research are demonstrated, including how elemental mercury is oxidized into oxidized mercury and the effect of flue gas contents on the mercury speciation transformation process. Mercury emission control methods, such as existing APCDs (air pollution control devices) at power stations, sorbent injection, additives in coal combustion and photo-catalytic methods are introduced in detail. Lab-scale, pilot-scale and full-scale experimental studies of sorbent injection conducted by the authors are presented systematically, helping researchers and engineers to understand how this approach reduces the mercury emissions in flue gas and to apply the methods in mercury emission control at coal-fired power stations. Readers will arrive at a comprehensive understanding of various mercury emission control methods that are suitable for industrial applications. The book is intended for scientists, researchers, engineers and graduate students in the fields of energy science and technology, environmental science and technology and chemical engineering.

Microbial Transformations Of Low Rank Coals

Download Read Online Microbial Transformations Of Low Rank Coals book
Author: Don L. Crawford
Publisher: CRC Press
ISBN: 9780849345517
Size: 57.72 MB
Format: PDF, Docs
View: 4416

Microbial Transformations Of Low Rank Coals by Don L. Crawford


Original Title: Microbial Transformations Of Low Rank Coals

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.

Impact Of Mineral Impurities In Solid Fuel Combustion

Download Read Online Impact Of Mineral Impurities In Solid Fuel Combustion book
Author: R. Gupta
Publisher: Springer Science & Business Media
ISBN: 0306469200
Size: 33.77 MB
Format: PDF, Docs
View: 7517

Impact Of Mineral Impurities In Solid Fuel Combustion by R. Gupta


Original Title: Impact Of Mineral Impurities In Solid Fuel Combustion

This book contains papers presented at the Engineering Foundation Conference on mineral matter in fuels held on November 2-7, 1997 in Kona, Hawaii. The conference is one of a continuing series that was initiated by the CEGB Mar- wood Engineering Laboratories in 1963. The conference was to be eventually organised by the Engineering Foundation as the need for multi-disciplinary work related to c- trolling ash effects in combustors became apparent. The conference covers both the science and the applications. The papers also present case histories, particularly for current fuel technologies, developments in advanced technologies for power generation and mathematical modelling of these processes. Developments since 1963 have been slow, but steady, due to the complexity of the chemical and physical processes involved. However, the research presented here displays great improvement in our understanding of the mechanisms by which mineral matter will influence fuel use. Steve Benson from EERC presented a review and current status of issues related to ash deposition in coal combustion and gasification. The application of new analytical tools, which have been detailed in the previous conferences, is presented. These include CCSEM, as well as new techniques for char- terising sintering of ash, such as TMA, image analysis, X-ray diffraction crystallography and thermal analysis. The new analytical techniques were extended to encompass widely differing fuels such as biomass. Ole H Larsen from ELSAM Denmark presented a review of these advanced techniques.

Recent Books :