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.
(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.
Not exact matches
Subbituminous: Generally used for electricity generation, subbituminous coal contains 35 % to
Subbituminous: Generally used
for electricity generation,
subbituminous coal contains 35 % to
subbituminous coal contains 35 % to 45 % carbon.
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.