A study has been made of the desulphurization of Syrian petroleum coke, containing 8.83% sulphur, by calcination in a Tamman furnace at high temperatures (l OOO-16OO'C) using heating times up to 4 h. Sulphur elimination (up to 96% in 30 min at 16OO'C) was found to increase with calcination temperatu
202. Thermal desulphurization of petroleum coke
β Scribed by Z. Vrbanovic
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 124 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
Abstracts 147 wedge disclinations (+?T, -or, t2r, -274 at the free surface of carbonaceous mesophase have been observed dynamically on a hot stage. The response of the disclinations to mechanical deformation is illustrated and discussed.
key role in the depolymerization and subsequent reaction of coal, including gasification and liquefaction. We will summarize our recent studies using a uniquely designed high temperature and high pressure ESR cavity for in situ investigation of free radicals under realistic process conditions.
199. Mimed disclmatfons
J. E. Zimmer (Acurex Corporation, Mountain View, CA 94042). Optical micrographic evidence has been obtained for mixed disclinations, with both wedge and twist character. These mixed disclinations are notable in conjunction with disclination loops in the morphology of bubble walls. An assessment has been made of the relative density of pure and mixed disclinations in typical mesophase microstructures.
- ESR study on the formation of coke texture
π SIMILAR VOLUMES
Desulphurization of a fluid coke produced commercially from a conventional petroleum crude oil was attempted. Direct hydrodesulphurization of the coke at 700Β°C resulted in ~31 w% sulphur removal; however, impregnation of the fluid coke with trace amounts of sodium hydroxide and subsequent hydrodesul
## ABSTRACTS of sintered and graphitized carbon was obtained by discharge for a duration time from 60 set to 300 set under a pressure of 175-350 kg/ems. The degree of sintering and graphitization of the compact specimen was examined by microscope and X-ray analysis. The more compactly sintered car