Wide Angle X-Ray Scattering Study of the Layering in Three of the Argonne Premium Coals

Document Type

Article

Publication Date

12-1-2000

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

Using wide angle X-ray scattering methods, the phase interference curves and the inter-layer structure curves of thee of the Argonne Premium Coals were measured. These analyses indicate the inter-layer structuring is rank dependent. In the sub-bituminous coal (Wyodak–Anderson), the number of layers in the average short-range structural domain is ca. 2.3, with the average inter-layer distance being 4.1 Å. For Pittsburgh #8 coal, the average inter-layer distance decreases slightly, to 4.0 Å, while the number of layers in the average short-range structural domain increases to ca. 3. For the more mature Pocahontas #3, a low-volatile bituminous coal, the inter-layer distance decreases to 3.7 Å, and the average short-range structural domain contains 4.5–5 layers.

Publication Title

Fuel

Volume

79

Issue

15

First Page

1981

Last Page

1989

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