Musikalische Marchen; Phantasien Und Skizzen. - 2 Angebote vergleichen

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This item is printed on demand. Paperback. 48 pages. Original publisher: Washington, D. C. : U. S. Govt. Accountability Office, 2009 OCLC Number: (OCoLC)568713222 Subject: Coal-fired power plants -- Law and legislation -- United States. Excerpt: . . . The successful deployments of sorbent injection technologies at power plants occurred around the time DOE concluded, on the basis of its tests, that these technologies were ready for commercial deployment. As a 25 result, funding for the DOE testing program has been eliminated. As 26 many states compliance dates for mercury emission reduction near, the Institute of Clean Air Companies reported that power plants had 121 27 sorbent injection systems on order as of February 2009. ( App. III provides data on state regulations requiring mercury emission reductions. ) While sorbent injection technology has been shown to be effective with all Some Plants May Require coal types and on boiler configurations that currently exist at more than Alternative Strategies to three-fourths of U. S. coal-fired power plants, DOE tests show that some Achieve Significant plants may not be able to achieve mercury reductions of 90 percent or Mercury Reductions more with sorbent injection systems alone. Following are a few reasons why: Sulfur trioxide - which can form under certain operating conditions or from using high sulfur bituminous coal - may limit mercury reduction because it interferes with the process of mercury binding to carbon sorbents. Hot-side electrostatic precipitators reduce the effectiveness of sorbent injection systems. Installed on 6 percent of boilers nationwide, these particulate matter control devices operate at very high temperatures, which reduces the ability of mercury to bind to sorbents and be collected in the devices. 28 Lignite, used by roughly 3 percent of boilers nationwide, has relatively high levels of elemental mercury - the most difficult form to capture. 25 The DOE mercury testing program has not received new funding since fiscal year 2008. 26 Il. . . This item ships from La Vergne,TN.

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United States Government, Paperback, English-language edition, Pub by General Books LLC.