Density Measurements of Argonne Premium Coal Samples
| Autor: | V. J. Hucka, David M. Bodily, He Huang, Keyu Wang |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Hydrogen
business.industry General Chemical Engineering Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Partial pressure respiratory system complex mixtures respiratory tract diseases Fuel Technology Adsorption chemistry Gas pycnometer Coal Absorption (chemistry) business Carbon Helium Nuclear chemistry |
| Zdroj: | Energy & Fuels. 9:20-24 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef00049a003 |
| Popis: | The densities of the Argonne Premium Coal samples were measured using H 2 , He, and a H 2 -He mixture (49.13 vol% of H 2 in He) in a gas pycnometer. Significant differences between the apparent hydrogen densities and helium densities were observed. The larger H 2 densities observed in the tests are attributed to H 2 gas adsorption/absorption on coal. The H 2 gas adsorption coefficient increases with increasing carbon content. The «true» or intrinsic densities of coals extrapolated from plots of the measured density versus H 2 gas partial pressure are very close to the He-densities. The organic coal density (dmmf coal density) was obtained after a correction for the mineral matter in the coals. It decreases with increasing carbon content initially, reaches a minimum at about 82 wt% carbon, and then increases with increasing carbon content |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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