Chemists pinpoint green method to separate coal ash minerals, elements

Source: Elixsys Inc., Aiken, S.C. 

Chemical specialist Elixsys reports successful laboratory extraction of industrial-grade compounds from power generating stations’ coal combustion products (CCP). Through methods exhibiting “zero waste and environmental impact” and marketing agreements in place or progress, the company plans to bring finished materials to construction and industrial supply chains.

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Shifting production, use patterns temper fly ash, CCP recycling rates

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Supply dynamics in key regional markets, paralleling coal-fueled power plant closures, spurred an 11 percent year over year decline in fly ash consumption in concrete, according to the American Coal Ash Association’s (ACAA) just-released “Production and Use Survey” for 2018. Concrete-grade ash accounted for 12.5 million of the 59.4 million tons of coal combustion products (CCP) beneficially used last year, the latter figure down 8 percent or 9.1 million tons from the 2017 ACAA survey. Use of all grades of CCP in cement production declined 26 percent in 2018, to 6.4 million tons.

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Dynegy contracts position Charah in eastern Great Lakes fly ash markets

Sources: Charah Inc., Louisville, Ky.; CP staff

A long-term agreement to manage and market coal combustion products (CCP) from Dynegy Inc. generating stations in Moscow (Zimmer Power) and North Bend (Miami Fort), Ohio, enables Charah to ship Class F fly ash by truck or rail to Ohio, Indiana, Kentucky, Michigan and Pennsylvania ready mixed and manufactured-concrete producers. The CCP management specialist will also market the stations’ bottom ash and contract for other material handling at each.

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Coal ash recycling reaches record level as production and use trends shift

Sources: American Coal Ash Association, Washington, D.C.; CP staff

“We are pleased to report that 52 percent of coal combustion products were beneficially used in 2015—up from the previous year’s record of 48 percent. For the first time, we are using more of these valuable resources than we are throwing away,” reports American Coal Ash Association Executive Director Tom Adams, taking stock of the central metric in the group’s latest “Production and Use Survey.”

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Headwaters projects double-digit increases in fly ash volumes toward 2017

Sources: Headwaters Inc., South Jordan, Utah; CP staff

In a third-quarter earnings report, Headwaters notes 8 percent revenue and 11 percent EBIDTA gains against the same period in 2015, while projecting near-term strengthening of fly ash and other coal combustion products (CCP) shipments, the core of its Construction Materials business. “As we develop additional sources of [fly ash] supply, we forecast 2017 volumes in the range of 6.1 to 6.5 million tons, a 9 percent to 20 percent increase over 2016 projected volumes,” the company tells investors.

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