Liquefaction of partially dried and oxidized coals
1983; Elsevier BV; Volume: 62; Issue: 10 Linguagem: Inglês
10.1016/0016-2361(83)90051-0
ISSN1873-7153
AutoresDonald C. Cronauer, Raffaele G. Ruberto, Robert G. Jenkins, Alan Davis, Paul C. Painter, D.S. Hoover, Michael Starsinic, David J. Schlyer,
Tópico(s)Coal and Its By-products
ResumoSamples of Belle Ayr (WY) subbituminous and Powhatan No. 5 mine (Pittsburgh Seam) bituminous coals were dried with gases including nitrogen, air and nitrogen/air mixture at temperatures essentially from ambient to 200 °C as part of a study to measure liquefaction behaviour. While the oxygen uptake of the subbituminous coal was up to 3 wt% and that of the bituminous coal was up to 8 wt%, the physical and chemical characteristics of both coals appeared to undergo only minor changes during treatment. However, CPAA oxygen analysis showed an apparent reaction of water with the coal, and FT—i.r. spectral results showed the formation of carbonyls and carboxylic acids with an indication of the formation of ethers.
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