Relationship between random and maximum vitrinite reflectance

Published equations for the calculation of maximum reflectance from random reflectance data are, as shown by comparison with the authors' data, applicable only up to 1.8% R max. At higher coalification they result in too low values because of the non-linear increase in R max. Based on 210 measu...

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Bibliographic Details
Published inFuel (Guildford) Vol. 74; no. 11; pp. 1687 - 1691
Main Authors Koch, Joachim, Günther, Mario
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.11.1995
Elsevier
Subjects
Applied sciences
Coal and derived products
coalification
Energy
Exact sciences and technology
Fuels
Structure, chemical and physical properties
vitrinite reflectance
vitrinite reflectance
coalification
Linear regression
Coal
Graphite
Vitrinite
Anthracite
Coal maturation
Reflectance
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Summary:Published equations for the calculation of maximum reflectance from random reflectance data are, as shown by comparison with the authors' data, applicable only up to 1.8% R max. At higher coalification they result in too low values because of the non-linear increase in R max. Based on 210 measurements, linear regression equations are presented for the calculation of R max from R r and vice versa which are applicable between 1% and 4% R r, together with non-linear functions which cover the total coalification range up to graphite.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(95)00111-H