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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jing, X. X. Wei, F. J. Zhang, Y. L. Wen, Y. L. Chang, L. P. Bao, W. R. |
| Copyright Year | 2016 |
| Abstract | By changing the drying temperature and residence time, a series of different degree dewatered lignite samples were prepared in the fixed-bed reactor under inert gas and their adsorbing moisture behaviors were investigated under certain re-adsorption conditions. Using SEM, nitrogen adsorption and in-situ FTIR analysis methods, the structure changes of dewatered lignite were measured and associated with the drying and re-adsorption behaviors. The results show that the higher the drying temperature, the higher the drying efficiency and the more obvious structure change of dewatered lignite. But the moisture re-adsorption amount of dewatered lignite showed different changing trends. Under the drying condition of 140°C and 50min, the total moisture content of coal after moisture re-adsorption was the lowest. Most pores are mesoporous in lignite and the macropore structure collapsed into mesopore during drying. When the drying temperature was higher than 120°C, oxygen-containing functional groups began to decompose; with the increase of drying temperature and time, decomposition rate increased. The hydrophilic strengths of -OH and COOH groups are stronger than that of others. |
| Starting Page | 332 |
| Ending Page | 338 |
| Page Count | 7 |
| File Format | |
| ISSN | 03615219 |
| Journal | Solid Fuel Chemistry |
| Volume Number | 50 |
| Issue Number | 5 |
| e-ISSN | 19348029 |
| Language | English |
| Publisher | Allerton Press |
| Publisher Date | 2016-10-20 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Physical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Fuel Technology Chemical Engineering |
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