Experimental results are presented for pore structure evolution in high-ash char during activation with COZ, H,O and air. Surface areas and pore size distributions of the char at various activation times are reported. It is shown that activation with H,O results in the most surface area and micropor
Evolution of pore structure and active surface areas of coal and char during hydrogenation
✍ Scribed by René Cyprès; Dominique Planchon; Colette Braekman-Danheux
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 432 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0016-2361
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✦ Synopsis
A Belgian coal (Beringen) has been used in a fundamental study of the changes in pore structure and active surface area during hydrogenation. The coal was devolatilized under N, and then hydrogenated at constant temperature up to various conversion yields. Reactivities of the chars were determined by isothermal thermogravimetric analysis. Changes in total surface area, calculated from CO2 adsorptlon isotherms at 298 K. and in macropore distribution. obtained by mercury penetration, were found to lead to the same FUEL, 1985, Vol 64, October 1375 Pore structure and active surface area evolution: R. Cyprks et al.
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