Rate enhancement for catalytic upgrading coal naphthas. Quarterly progress report, April--June 1992
The amount of individual nitrogen and sulfur presented in the feed and hydrotreated Illinois {number_sign}6 naphtha were determined. The major nitrogen class in the naphtha are anilines. The major sulfur components identified are thiophenes and benzothiophenes. The aniline and quinoline is harder to...
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| Hauptverfasser: | , , , |
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| Format: | Report |
| Sprache: | Englisch |
| Veröffentlicht: |
1992
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| Schlagworte: | |
| Online-Zugang: | https://www.osti.gov/servlets/purl/10121799 https://doi.org/10.2172/10121799 |
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| Zusammenfassung: | The amount of individual nitrogen and sulfur presented in the feed and hydrotreated Illinois {number_sign}6 naphtha were determined. The major nitrogen class in the naphtha are anilines. The major sulfur components identified are thiophenes and benzothiophenes. The aniline and quinoline is harder to remove than pyridine. The aniline and pyridine, without any carbon substituted, is the easiest one to remove in their class. The quinoline, without any carbon substituted, is approximately as hard as one carbon substituted quinoline to remove. Both Co-Mo and Ni-W catalysts follow the similar pattern of the nitrogen removal at different temperatures. The sulfur compounds of the Ill. {number_sign}6 naphtha was separated to three classes, i.e. sulfides and thiols, thiophenes and benzothiophenes, for comparisons. The thiophenes was the major component of the hydrotreated naphtha at most temperatures; however, the sulfides and thiols class becomes the major component at temperatures greater than 300{degree}C. |
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| DOI: | 10.2172/10121799 |