A high-volatile bituminous coal possessing a high Gieseler fluidity and large dilatation was subjected to slight oxidation in air under chosen conditions. The resultant 'oxycoal'was treated with various chemical reagents in order to determine to what extent the original caking properties of this coa
Oxidation studies on coking coal related to weathering. 4. Oxygen linkages influencing the dilatometric properties and the effect of cleavage of ether linkages
โ Scribed by Helena M. Wachowska; Biswanath N. Nandi; Douglas S. Montgomery
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 948 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0016-2361
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โฆ Synopsis
Samples of a vitrinite concentrate of Balmer 10, medium-volatile bituminous coal (433) and high-volatile Moss 3 coal (535) were oxidized in air at 85ยฐC for four days to partially destroy the swelling characteristics as measured by the Ruhr dilatometer. Similar samples were oxidized at 100ยฐC for three days to completely destroy the swelling properties.
๐ SIMILAR VOLUMES
A high-volatile A bituminous coal was oxidized with 180, at 1OO'C for 72 h to simulate weathering, and subsequently pyrolysed at various temperatures to drive off C180,, C1801%, C1%,, C180, C160, Hz180, Hz'%. These gases were subsequently analysed by massspectrometry. The results indicate that 60%