Kinetic study of the depolymerization of Bruceton coal

Larsen, John W.; Urban, Ludvik O.; Lawson, Glenn E.; Lee, Doyoung

doi:10.1016/0016-2361(81)90191-5

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A Nonideality Of Solutions1

Where Does Truth Lie?1

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1983

1988

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Cited by 16 publications

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“…Dormans and van Krevelen (1960) reported what appears to be a reliable set of number average molecular weights for pyridine extracts of bituminous coals, using differential ebulliometry in pyridine. Larsen et al (1981) have pointed out that the slopes of the plots used by Chung et al have no thermodynamic significance. The values obtained were in the range from 400 to over 2500, there being a maximum number average with coals of about 87% C. However, the extracts of higher rank coals contained in creasing fractions of material of molecular weight > 2500.…”

Section: A Nonideality Of Solutionsmentioning

confidence: 99%

“…A number of authors have fractionated soluble coal derivatives by pre parative gel permeation chromatography and then determined number average molecular weights of the fractions by vapor phase osmometry (Sternberg et al, 1971;Sun and Burk, 1975;Ignasiak and Gawlak, 1977;Larsen and Choudhury, 1979;Larsen et al, 1981;Schanne and Haenel, 1981). Examples of the results were shown in Fig.…”

Section: Where Does Truth Lie?mentioning

confidence: 99%

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