Coal: Research and Development to Support National Energy Policy

Questions? Call 800-624-6242

About | Ordering | New

LoginRegister

| Items in cart [0]

HARDBACK
price:$37.00
add to cart

Rights & Permissions

Free PDF Access

Free Resources

Related Titles

Coal: Research and Development to Support National Energy Policy (2007)
Board on Earth Sciences and Resources (BESR)

Citation Manager Export the bibliographic data for this book in your chosen format
Web Search Builder Use this book's key terms to search within this book, across our collection, or across the Web.
Skim This Chapter Skim this chapter and use this chapter's key terms to search within this book.
Reference Finder Paste in your own text to find books that relate to your topic.

Citation Manager

. "4 Coal Mining and Processing." Coal: Research and Development to Support National Energy Policy. Washington, DC: The National Academies Press, 2007.

Please select a format:

Page
63


E-mail Share on facebook Facebook Share on delicious Delicious Share on stumbleupon Stumble Share on twitter Twitter More Sharing ServicesMore

The following HTML text is provided to enhance online readability. Many aspects of typography translate only awkwardly to HTML. Please use the page image as the authoritative form to ensure accuracy.

Coal Research and Development: to Support National Energy Policy

TABLE 4.2 Typical Values for Characteristics of Major Commercial Steam Coals in the United States

	Northern Appalachia	Central Appalachia	Illinois Basin	Powder River Basin (Wyoming and Montana)	Lignite (Texas and North Dakota)
Rank	High Volatile A Bituminous	High Volatile B Bituminous	High Volatile C Bituminous	Subbituminous C	Lignite A
Moisture (wt%) as received (AR)	7.0	7.5	12.5	29.8	32.0
Ash (wt%), AR	7.6	8.5	11.0	4.8	10
HHV^a (Btu/lb), AR	13,100	12,650	11,300	8,500	7,200
Sulfur (wt%), dry	2.5	1.0	2.7	0.5	1
Chlorine, wt%, dry	0.1	0.1	0.2	0.01	0.01
NOTE: Data assembled from numerous sources. ^aHigher Heating Value.

FIGURE 4.4 Productivity trends for surface and underground coal mines, illustrating the dramatic productivity increases over the past three decades. SOURCE: EIA (2006a).