coal co-combustion Articles

  • Is `clean` coal possible?

    VANCOUVER, April 18, 2007 (GLOBE-Net) - Coal is the world’s most commonly used fuel to produce electrical energy, and will continue as such for some time. Yet it is one of the ’dirtiest’ of all fossil fuels. It is a major source of toxic air pollutants and the leading source of energy-related greenhouse gas emissions. Many believe ’clean coal’ technologies will improve the energy efficiency of ...


    By GLOBE SERIES

  • Experience on coal reburn in a utility boiler

    Reburning is an in-furnace combustion modification technology for the reduction of NOx. By staging the introduction of the fuel, an environment is created where NOx generated by the combustion of the main fuel supply is subsequently consumed by the hydrocarbon radicals arising from the reburn fuel under reducing conditions. ENEL has retrofitted unit No. 4 of Vado ...


    By Inderscience Publishers

  • Coal-to-liquid fuels poised for a comeback

    Converting coal into liquid fuels is known to be more costly than current energy technologies, both in terms of production costs and the amount of greenhouse gases the process emits. Production of coal-to-liquid fuel, or CTL, has a large carbon footprint, releasing more than twice the lifecycle greenhouse gases of conventional petroleum fuels. However, with the rise in energy prices that began ...


    By GLOBE SERIES

  • Cleaning of Dukki (Baluchistan) coal by oil agglomeration process

    Cleaning of coal fines by oil agglomeration is an efficient technique by which an appreciable recovery of combustible matter and significant reduction in ash forming minerals are possible. In this study, oil agglomeration process has been employed to clean indigenous coal under the influence of parameters such as oil type, particle size and the pH value of aqueous medium. As agglomerant, castor ...


    By Inderscience Publishers

  • Overview of mercury control in coal-fired power plants

    During combustion, the mercury (Hg) in coal is volatilized and converted to elemental mercury (Hg0) vapor in the high temperature regions of coal-fired boilers. As the flue gas is cooled, a series of complex reactions begin to convert Hg0 to ionic mercury (Hg2+) compounds and/or Hg compounds (Hgp) that are in a solid-phase at flue gas cleaning temperatures or Hg that is adsorbed onto the surface ...

  • Legal lookout: competing coal ash proposals

    Depending upon comments the EPA gathers, industry may have to or not have to close out their coal ash containment ponds within five years. On May 4, 2010, EPA issued its long-awaited proposal to manage coal ash – the byproduct of burning coal to generate power. The agency proposed two quite different approaches for regulating coal ash, somewhat to the consternation of critics, who had hoped ...


    By Bergeson & Campbell, P.C.

  • Fast and reliable safety surveillance in coal silos – Case Study

    CO Monitoring in Coal Silos Coal Silos are widely used nearby mining facilities or as intermediate storage containers at steel or cement plants. A major threat in running this facilities is the random occurance of partial self-ignition of the coal. This leads to elevated CO concentrations inside the headspace of the silo. This self-ignition is hardly to predict, since its occurance ...

  • Tips for turning a coal fired boiler to gas fired boilers

    Smog has been a heated topic among the word. Therefore , gas fired boiler substitute for coal fired boiler become a trend to protect the environment.Since the boiler is a large thermal equipment ,it is requires attention to security incidents in the transformation .Here are some tip from ZG about turning a coal fired boiler to gas fired boiler. First , when turning a coal fired boiler to gas ...

  • Thermochemical reactor design and thermal breakdown in middle-rank coals

    Experiments conducted at bench scale can throw new light on the operation of pilot and plant scale processes. In the coal gasification/combustion area, such experiments have ranged from determinations of coal reactivities for novel entrained-flow gasifiers, to investigating the fate of injectant coal during blast furnace operation. Meanwhile, the accurate mimicking of conditions within pilot and ...


    By Inderscience Publishers

  • Difficult Complex Decisions For Coal-fired Power Plant Operators

    Changing fuel prices, government regulations and technology all combine to make decision making difficult for operators and developers of coal-fired power generation facilities around the world. Power plant designers in developing countries face new local environmental regulations plus additional requirements stipulated by lenders such as the World Bank. In the developed world, the regulations ...


    By The McIlvaine Company

  • World must weigh the true cost of coal to be serious about climate – OECD

    Governments should rethink the role of coal in energy supply as the scale of new investments being made in unabated coal-fired electricity generation poses the most urgent threat to our climate, OECD Secretary-General Angel Gurría said today. Countries should conduct a more rigorous evaluation of the true costs of coal. With prices failing to fully account for the environmental, ...


    By GLOBE SERIES

  • Closing the door on building new coal-fired power plants in America

    Community opposition, legal challenges, and financial uncertainty over future carbon costs are prompting companies to rethink their plans for coal. Since the beginning of 2007, 95 proposed coal-fired power plants have been cancelled or postponed in the United States--59 in 2007, 24 in 2008, and at least 12 in the first three months of 2009. This covers nearly half of the 200 or so U.S. coal-fired ...


    By Earth Policy Institute

  • A new way to measure emissions from China’s Coal-Fired Power Plants

    To prevent the most severe impacts of climate change, it is essential to limit fossil fuel use—particularly coal use in power production. The share of coal in global energy consumption is increasing, with ...

  • EPA targets electric utilities - the agency steps up efforts to manage coal ash damage

    Approximately 5.4 million cubic yards, or 1.1 billion gallons, of coal ash from the Tennessee Valley Authority (TVA) plant near Knoxville, Tenn., in December 2008 flooded some 300 acres of land, damaging property, polluting waterways, and killing fish. TVA will likely spend more than $500 million and perhaps as much as $1 billion dollars on the cleanup, says the U.S. Environmental Protection ...


    By Bergeson & Campbell, P.C.

  • Business viability of biomass co-firing and gasification for electricity generation

    Greenhouse gas reduction occurs as a result of substitution of woody biomass for coal. Coal is the worst amongst all the fossil fuels in terms of greenhouse gas emission per unit of electricity generated. Recent concerns related to the environmental impact of greenhouse gases from using fossil based feedstock, like coal, for the generation of power, specifically electricity have driven the need ...


    By Inderscience Publishers

  • Power plants coordination for economic and environmental load dispatch of thermal power plants with wind generation systems

    Economic load dispatch (ELD) and economic emission dispatch (EED) have been applied to obtain generation scheduling of thermal power plants at optimum fuel cost and emissions. Due to limited availability of quality coal, issue of environmental emissions and high prices of coal, installation of renewable energy systems are suggested in power grid. Renewable energy system preferably wind generators ...


    By Inderscience Publishers

  • Thermodynamic analysis of an integrated gasification combined cycle power plant: effect of nitrogen supply on system performance

    A comprehensive thermodynamic analysis of a conceptual integrated coal gasification combined cycle power plant is presented. Energy and exergy efficiencies and exergy destructions of each sub–unit are calculated. The effect of nitrogen, which is supplied from the Air Separation Unit (ASU) of the gasification unit to the combustion chamber of the gas turbine (GT) cycle, on system performance is ...


    By Inderscience Publishers

  • The impacts of technological learning on the optimum technology mix: simulations for the Indian power sector

    For the investigation of the optimum technology mix of any country, which is clearly an issue of dynamic nature, technological learning and economies of scale play a significant role. Hence, in this paper's long term planning exercise for the Indian power sector (2000-2025), our simulation analysis specifically includes the impacts of technological learning on the optimal inter-temporal choice of ...


    By Inderscience Publishers

  • E.ON Benelux power station Maasvlakte, Rotterdam - Case Study

    Next Generation Power Production E.ON’s new Maasvlakte power station also known as MPP3 is built in the harbour of the Dutch metropolis Rotterdam. The modern supercritical hard coal fired unit with a capacity of 1100 MW is expected to have a thermal efficiency of more than 46 percent. The new plant built in the vicinity of the existing Maasvlakte station is designed as cogeneration ...

  • Focus Bioenergy No 5 2004: Peat - a domestic fuel with advantages

    Total peat volume in Sweden is estimated to 100 billion m2. However, a large part of these assets are situated in wetlands that are important for biodiversity. The total climate impact of peat depends on emissions at combustion, but also on whether the extraction causes considerable natural flows of greenhouse gases from the peat land to cease. Often the total climate im-pact is well below that ...


    By Elmia AB

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you