Academic Journal
Effects of Tar Hydrocracking on Subsequent Carbonization.
| Title: | Effects of Tar Hydrocracking on Subsequent Carbonization. |
|---|---|
| Authors: | Chesnokov, V. V., Dik, P. P., Chichkan, A. S., Parmon, V. N. |
| Source: | Petroleum Chemistry; Oct2022, Vol. 62 Issue 10, p1204-1210, 7p |
| Abstract: | The study investigated thermal carbonization of oil tar in comparison with tar carbonization over a Ni/Sibunit catalyst at 450–600°C. The addition of Ni/Sibunit to the tar slightly enhanced the yield of coke. However, various sulfur compounds released during tar carbonization interact with metallic nickel to form nickel sulfide, thus rapidly deactivating the catalyst in carbonization that occurs by the carbide-cycle mechanism. To suppress the deactivation of 8%Ni/Sibunit under the impact of sulfur compounds, we hydrocracked the tar sample prior to feeding it to the carbonization. The tar hydrocracking was carried out in a flow-type reactor with a fixed bed of sulfided Ni–Mo/Al |
| Subject Terms: | NICKEL sulfide, CARBONIZATION, HYDROCRACKING, SULFUR compounds, STEAM reforming, TAR, COKE (Coal product), CARBON nanofibers |
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| ISSN: | 09655441 |
| DOI: | 10.1134/S0965544122100061 |
| Database: | Complementary Index |
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