…The EPA’s endangerment finding covers emissions of six key greenhouse gases—carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride—that have been the subject of scrutiny and intense analysis for decades by scientists in the United States and around the world. Share…
Results for "❤️ Dating für mich: [url"
Arch Coal Leases GNP’s Otter Creek Reserves
…significant reserves,” said Corbin J. Robertson Jr., chairman and CEO, GNP. The 731 million tons of low-ratio, sub-bituminous coal reserves, which are low in sulfur content, are located in the Ashland coalfield southeast of Billings, Mont. These reserves would support the future…
Virginia Tech to Lead Underground Mine Ventilation Study
…and an experimental apparatus for testing tracer gases. Additionally, a tracer gas other than sulfur hexafluoride—the industry standard in such mine ventilation tests—will be identified and tested in both the laboratory and field. Additional gases allow complex mine ventilation systems to be…
Bucyrus Supplies Longwall Technology Worldwide
…2011 to ramp up to 6 million mtpy and maximum production is expected to be 8 million mtpy. The seam has a height of 9 m, but initially, the mine is targeting the bottom 4.5 m as this is low-ash, low-sulfur coal….
Reducing Energy Consumption on Overland Conveyors
…and dimensioning, DIN 22101:2002-08, Deutsches Institut für Normung, 2002. 4 Continuous Mechanical Handling Equipment – Belt Conveyors with Carrying Idlers – Calculation of Operating Power and Tensile Forces, ISO 5048-1979, International Standards Organization, 1979. 5 Kropf-Eilers, A et al: Energy Optimized Conveyor…
Dotiki Saves Money and Time with Power Tool and Belt Fasteners
By Ken Bargo Alliance Coal’s Dotiki mine is one of the largest non-longwall underground coal mines in the U.S., and among the largest operators in the Common-wealth of Kentucky. Located near Providence, Ky., the mine has been producing low moisture, high sulfur…
Alaska’s Usibelli Coal: Three Generations and Counting
…Coal While the calorfic value for Usibelli’s coal averages 7,650 Btu/lb, what sets it apart from other coals is its ultra-low sulfur content—approximately 0.2%—ranking it among the lowest sulfur coals worldwide. UCM extracts coal from three seams, each with an average thickness…
Southern Coal Finds Value in the Met Market
…family also purchased some high-sulfur steam coal reserves near Hazard, Ky., in 2004. In 2007, they acquired Sequoia Energy near Harlan, Ky. Sequoia is a pulverized coal injection (PCI)/high-vol met and steam coal producer. A year later, they acquired Infinity Energy, near…
AEP Launches Project to Test Carbon Capture
American Electric Power (AEP) has launched a pilot project to capture and sequester carbon dioxide emissions from its Mountaineer plant in New Haven, W.Va. “It’s a game-changing technology,” said AEP CEO Michael Morris. “It has some challenges ahead, as all new technologies…
The Future of Coal in Australia
…is essential to its prosperity, creating 20% of the nation’s mineral wealth, 81% of its electricity and the largest coal export platform in the world. The study is edited by UQ Professors Peter Knights and Michael Hood and presents findings of UQ…
Kobe Steel to Develop Technology for Cutting Coke Costs
…furnaces, it needs to be strong enough to withstand the weight of iron ore. Regular coke is produced from bituminous coal that is priced higher than coal used for power-generating purposes. Kobe Steel seeks to come up with technology that will allow…
Oxbow Tests Synthetic Roof and Rib Mesh System
…carry, dispense, and tension rolls of mesh. Mounted on the roof bolter, it would pay out mesh as the bolter trammed forward. As the mesh is unrolled and bolted to the roof, the fan-folded ends automatically unfurl for use as rib mesh….
Arch Coal Completes Jacobs Ranch Acquisition
…2008, Jacobs Ranch produced 42.1 million tons of high-quality sub-bituminous coal. “This transaction further expands Arch’s size, scale and strategic position in the Powder River Basin,” said Steven F. Leer, chairman and CEO, Arch Coal. “Arch plans to integrate Jacobs Ranch, which…
Safety and Health Law in the Obama Administration
…Michaels promulgate stricter occupational health standards, having helped author the NIOSH recommendations for reducing existing standards and adding new regulatory mandates. Jordan Barab, OSHA’s interim leader who will serve as Michaels’ deputy, was a key Congressional staff member on OSHA and MSHA…
Extracting Value from Coal Mine Methane
…carbon offset credits. In addition, the rising focus on U.S. energy security and domestic energy supply is prompting mine managers and engineers to give further consideration to the importance of their methane gas by-products. The market through which coal mine methane offset…
CA Sidebar 01
