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Tag: Coal

Explosion at Chinese Coal Power Plant Reportedly Kills 21

August 15, 2016
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| Industry News

News agencies are reporting that an explosion at a coal-fired power plant in Dangyang, a city in central China, has killed at least 21 people and injured five others, three seriously.

The event is said to have occurred around 3:20 p.m. local time on August 11. The facility—designed to generate thermal power and sell slag, ash, and petroleum products—is owned by Madian Gangue Power Generation Co. Some sources suggested that the plant is in the process of being commissioned and was undergoing testing at the time of the incident.

🔴Steam pipe explosion at central #Hubei , #China power station kills 21, injures 5
📸 pic.twitter.com/syqbBlhKCa

— Mete Sohtaoğlu (@metesohtaoglu) August 11, 2016

It has been difficult to establish specifics about the blast. An investigation is said to still be in progress. Initial reports identified the plant as a chemical facility, but it was later determined to be the coal power plant site. Although several sources have suggested that the event was triggered when “a high-pressure steam pipe exploded,” the number of casualties, ensuing fire, and volume of black smoke shown in pictures posted on Twitter that are said to be of the event, suggest that something much more explosive initiated the incident.…

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Understanding and Mitigating Metallurgical Effects of Coal Blending and Switching

July 5, 2016
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Fuel blending and switching has become the norm in response to regulatory and market forces, but many older boilers were designed for a particular fuel. Understanding the effects of different fuels on combustion system metals is crucial for ensuring smooth operations.

Is there a clear distinction between good and bad fuel to burn in a particular boiler? Apparently not! Some fuels may contain higher heating values, but they may also possess characteristics that cause emissions problems, as well as operational and reliability challenges. Other fuels may be more environmentally friendly, but may contain higher moisture content and lower heating values. Ideally, the “right fuel” is that for which a boiler is designed or retrofitted to specifically burn.

Congress extensively amended the Clean Air Act in 1990. Following those changes, the Environmental Protection Agency began imposing more stringent emissions regulations in the mid-1990s, which led to fuel blending and switching becoming the norm. Of course, there are other factors—such as cost, availability of mines, and meeting full-load requirements in a dynamic environment—that have also influenced fuel blending or switching decisions.…

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FPL to Buy and Phase Out Another Florida Coal Power Plant

June 21, 2016
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Florida Light and Power (FPL) wants to buy and phase out another coal-fired power plant in Florida, a move it says will save its customers an estimated $ 129 million when new gas-fired infrastructure is built in the state.

The NextEra subsidiary on June 20 filed a petition for the Florida Public Service Commission’s (PSC’s) approval to buy the 330-MW Indiantown Cogeneration facility, which is currently owned by Calypso Energy Holdings, in a deal valued at about $ 451 million (including existing debt).

The coal-fired plant is equipped with advanced pollution controls, including selective catalytic reduction technology and a zero-discharge water treatment system. It also sells steam to Louis Dreyfus Citrus, a nearby food processing plant, under an energy services agreement. It is unclear how the deal will affect that contract.

The state regulator approved a power purchase agreement between FPL and the cogeneration facility in 1991 that does not expire until 2025. If the PSC approves the proposal, FPL estimates it will save customers $ 129 million over the remaining life of the contract, approximately nine years.…

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