Sentences with phrase «mine subbituminous coal»

However, due to the lower energy content of subbituminous coal, US coal production in terms of energy has already peaked 5 years ago — it is unclear whether this trend can be reversed.

Subbituminous: Generally used for electricity generation, subbituminous coal contains 35 % to 45 % carbon.

Wyoming produces the vast majority of subbituminous coal in the U.S.

Although subbituminous coal has the second lowest energy content, large quantities are found in thick beds near the surface, resulting in low mining cost and, correspondingly, lower prices.

Currently Asian markets, which also include India, Korea, Taiwan, and Japan, import 140 million tons per year of subbituminous coal, all from Indonesia.

A Bellingham terminal would position Peabody Energy to export subbituminous coal, also known as «steam» coal, to Asia from its vast Powder River Basin (PRB) holdings.

Freedom Mine is the only top 10 mine not in the Powder River Basin, and is also the only lignite mine, while the other nine mine subbituminous coal.

While Wyoming produces the most coal in the United States, long rail transport distances, limited Pacific Ocean coal export capacity, and the lower energy content of subbituminous coal place some limits on utilization.

The total of scheduled coal - fired generating capacity retirements is split between 10.2 GW of bituminous coal and 2.8 GW of subbituminous coal.

Of the plants without scrubbers, the ones burning subbituminous coal generated 69 % of the electricity while only emitting 48 % of the associated emissions in 2010 (see chart).

The (arithmetic) average emission factors obtained from the individual samples (assuming complete combustion)(Table FE4)(10) confirm the long - recognized finding that anthracite emits the largest amount of carbon dioxide per million Btu, followed by lignite, subbituminous coal, and bituminous coal.

(11) In pounds of carbon dioxide per million Btu, U.S. average factors are 227.4 for anthracite, 216.3 for lignite, 211.9 for subbituminous coal, and 205.3 for bituminous coal.

EIA's first reported emission factors by coal rank, published in Electric Power Annual 1990, DOE / EIA -0348 (90)(Washington, DC, January 1992), p. 124, were as follows: anthracite, 209; bituminous coal, 209; subbituminous coal, 219; and lignite, 213.

A ton of subbituminous coal from Montana (reserves estimated at 100 billion tons) contains between 8000 and 11000 btus per pound so I use 22 million btus per ton.

11For the coal analyzed in the EIA Coal Analysis File, the average hydrogen content was as follows, by weight (dry basis): anthracite, 2.5 percent; bituminous coal, 5.0 percent; subbituminous coal, 4.8 percent; and lignite, 4.4 percent.

10The EIA Coal Analysis File did not contain data for bituminous coal in Texas, subbituminous coal in Alaska and New Mexico, or lignite in Arkansas, California, and Louisiana.

The mix of rank and origin of coal consumed in the United States has changed substantially in the past two decades, reflecting shifts to Western low - sulfur subbituminous coal and lignite, predominantly for electricity generation.

The emission factor for Alaska subbituminous coal was derived from information obtained from the sole producer of coal in Alaska.

Further changes are expected in the coming years, especially due to the Clean Air Act Amendments of 1990, which will encourage switches from high - sulfur Eastern bituminous coal to low - sulfur Western subbituminous coal.

By contrast, the share for subbituminous coal rose from 18 percent in 1980 to 25 percent in 1992, while the share for lignite grew from 6 percent to 9 percent.

Not exact matches

There are many different types of coal, such as: bituminous, subbituminous, lignite, refined and waste.

The four ranks used in most coal statistics are, in decreasing order of heating value: anthracite, bituminous, subbituminous and lignite.

From 1950 to 2005, world coal production of all grades (anthracite, bituminous, subbituminous and lignite) grew substantially, but irregularly (table 3).

Therefore, based on available EIA data, the following coal ranks were assigned to distributions of nonutility coal from the following coal - producing States: Arkansas, bituminous; Colorado, Montana, Washington, and Wyoming, subbituminous; Texas, lignite.