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Investigation of the Adsorption Process in Coal Using X-ray Diffraction.

Authors
Chang-S; Brown-PF
Source
For Reference Only At Bureau Libraries :14 pages
Link
NIOSHTIC No.
10010057
Abstract
An exploratory research was done on untreated coal using x-ray diffraction techniques. A comparison was made of diffraction data before and after pressurized methane was added to the coal samples. Although only qualitative data were obtained, the following statements about untreated coal seem plausible: there are other materials in coal that are accumulated in layers causing the macroscopic layered structure of coal; the partial graphitization of the fixed carbon in coal assumes random orientations; the methane adsorbed in coal is held in its microspore system, and there is no evidence of bonding to carbon by x-ray diffraction measurements; the methane in coal microspores assumes no structure itself at room temperature; and, finally, some of the other materials in coal are present in the form of hydrated crystallites which have anisotropic growth habits in the layers.
Publication Date
19720101
Document Type
CP;
Fiscal Year
1972
NTIS Accession No.
NTIS Price
Identifying No.
OFR 8-72
Source Name
For Reference Only At Bureau Libraries
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