The Structure and Reactions of Northern Great Plains Lignites

Kube, W.R.; Schobert, Harold H.; Benson, Steven A.; Karner, Frank R.

doi:10.1021/bk-1984-0264.ch003

Cited by 8 publications

(3 citation statements)

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“…(FT-IR), nuclear magnetic resonance spectroscopy (NMR), and differential scanning calorimetry (DSC) (Schobert, 1990;Knudson, 1986;Kube et al, 1984;Benson and Schobert, 1982). Idealized molecular models for low-rank coal, such as the one in Figure 13 indicate one-to three-ring aromatic clusters, a greater abundance of aliphatic and hydroaromatic carbon chains than in bituminous (Knudson, 1986).…”

Section: Lignite Properties Affecting Upgradingmentioning

confidence: 99%

Advanced power assessment for Czech lignite task 3.6. Topical report

Sondreal¹,

Mann²,

Weber³

et al. 1995

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Section: Lignite Properties Affecting Upgradingmentioning

confidence: 99%

Advanced power assessment for Czech lignite task 3.6. Topical report

Sondreal¹,

Mann²,

Weber³

et al. 1995

View full text Add to dashboard Cite

“…(FT-IR), nuclear magnetic resonance spectroscopy (NMR), and differential scanning calorimetry (DSC) (Schobert, 1990;Knudson, 1986;Kube et al, 1984; Benson and Schobert, 1982). Idealized molecular models for low-rank coal, such as the one in Figure 13 indicate one-to three-ring aromatic clusters, a greater abundance of aliphatic and hydroaromatic carbon chains than in bituminous …”

Section: Lignite Properties Affecting Upgradingmentioning

confidence: 99%

Advanced power assessment for Czech lignite. Task 3.6, Volume 1

Sondreal¹,

Mann²,

Weber³

et al. 1995

View full text Add to dashboard Cite

“…Pyrolysis also yields a homologous series of straight-chain alkanes and l-alkenes. The length of aliphatic bridges is an issue of debate, with evidence suggesting both long A significant difference between low-rank and bituminous coals is the 10 to 30 wt% of oxygen incorporated into the organic structure of low-rank coals (16). This oxygen occurs in hydroxyl, ether, and carboxylate fu nctional groups, each of which contributes to the chemical behavior.…”

Section: Properties Of Low-rank Coalsmentioning

confidence: 99%

Low-Rank Coal: Its Present and Future Role in the United States

Sondreal¹,

Wiltsee²

1984

Annu. Rev. Energy.

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Low-rank coals-lignite and subbituminous coal-are those that have been subjected to the least metamorphic change during the coal-forming process. As such, they retain greater fractions of moisture and volatile matter and contain less fixed carbon than the high-rank coals-bituminous and anthracite. The primary measure used to classify the lower ranks of coal is the heating value. Lignite is defined by the American Society for Testing and Materials (standard D-388) as coal with a heating value less than 8300 Btujlb, on a moist, mineral-matter-free basis (m,mmf). Subbituminous coal ranges in heating value from 8300 to 11,500 Btujlb (m,mmf). Bituminous coal and anthracite range from 10,500 to over 15,000 Btu/lb (m,mmf). Low-rank coals represent a major but largely untapped energy resource in the United States. Very extensive deposits of lignite and subbituminous coal exist in the western states, the Gulf Coast, and Alaska (Figure 1). Major deposits of low-rank coal are also found in many other countries, most

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The Structure and Reactions of Northern Great Plains Lignites

Cited by 8 publications

References 0 publications

Advanced power assessment for Czech lignite task 3.6. Topical report

Advanced power assessment for Czech lignite task 3.6. Topical report

Advanced power assessment for Czech lignite. Task 3.6, Volume 1

Low-Rank Coal: Its Present and Future Role in the United States

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