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 c
Desulphurization of petroleum coke by butagas
β Scribed by Afaf Ibrahim EI-Ansary; Said Youssef Ezz
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 657 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0016-2361
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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
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
## 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