| Autor: |
D.L. Cillo, Richard E. Tischer, Gary J. Stiegel, Nand K. Narain |
| Rok vydání: |
1985 |
| Předmět: |
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| Zdroj: |
Fuel Processing Technology. 11:273-287 |
| ISSN: |
0378-3820 |
| DOI: |
10.1016/0378-3820(85)90005-0 |
| Popis: |
An investigation was conducted to determine the activities of various coal-liquefaction residua during catalytic hydrotreatment. Residua produced at low- and high-severity coal-liquefaction conditions were employed, as well as a nondeashed residuum produced at low-severity conditions. All experimental runs were performed in a continuous-flow hydrotreating unit using Shell 324M catalyst. Except for hydrogenation activity, catalyst activity declined with a typical S-shaped deactivation curve. The properties of the spent catalysts do not depend significantly upon prior processing of the feedstock; however, the prior processing history of the feedstocks affected their reactivity and the rate of catalyst deactivation. The results indicate beneficial effects of conducting coal liquefaction at low-severity conditions and of product deashing prior to catalytic hydrotreatment. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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