Storage stability of light cycle oil: Studies for the root substance of insoluble sediment formation
- Chemicals Inspection & Testing Institute, Tokyo (Japan)
The storage stabilities of a raw and pretreated light cycle oils (LCOs) have been studied under the condition of ASTM D2274-88. The raw LCO was pretreated by five methods; 10% sulfuric acid-extraction, 10% sodium hydroxide-extraction, methanol-extraction, active clay- treatment, and catalytic hydrotreating. The raw and pretreated LCOs were aged at 95{degrees}C for 144 hours while oxygen was bubbled. The pretreatment except 10% sulfuric acid-extraction showed the decreasing sediments. After removing the sediments by filtration, the changes of component of the residual oils before and after aging, were analyzed by GUMS, GC/AED and GC/NPD. Remarkable changes were observed in nitrogen compounds such as anilines and indoles, sulfur compounds such as thiophenols, and oxygen compounds such as phenol and its derivatives. It was clarified that the sediment formation was caused by the mutual interactions among heteroatom-containing compounds mentioned above. In addition, unstable hydrocarbons were suggested to behave as key-compounds for sediment formation.
- Research Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States). Office of Technical Management
- OSTI ID:
- 68705
- Report Number(s):
- CONF-941022-Vol.2; ON: DE95009411; TRN: 95:003870-0027
- Resource Relation:
- Conference: 5. international conference on stability and handling of liquid fuels, Rotterdam (Netherlands), 3-7 Oct 1994; Other Information: PBD: Apr 1995; Related Information: Is Part Of Proceedings of the 5th international conference on stability and handling of liquid fuels. Volume 2; Giles, H.N. [ed.]; PB: 514 p.
- Country of Publication:
- United States
- Language:
- English
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