The distribution and thermal conversion performance of porphyrin and non-porphyrin nickel in Gudao and Shengli residues
- Univ. of Petroleum, Shandong (China); and others
The residues of Shengli and Gudao crude oils have been separated into some fractions using alumina chromatography and supercritical fluid extraction. The petroporphyrin nickel compounds of the residues and its fractions were concentrated by silica column chromatography eluted with cyclohexane, cyclohexane-dichloromethane and dichloromethane-acetone. The results show that a large part of nickel porphyrins are present in the resin-asphaltene fractions of the residues. The distribution of the porphyrin nickel reveals a bimodal distribution pattern with a maximum at the light resin. The data show that it is difficult to remove petroporphyrin nickel by solvent deasphalting. Data also indicate that the thermal reaction of residue is of benefit to removal of porphyrin and non-porphyrin nickel by solvent deasphalting technique.
- OSTI ID:
- 215065
- Report Number(s):
- CONF-950801-; TRN: 96:000922-0573
- Resource Relation:
- Conference: 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
- Country of Publication:
- United States
- Language:
- English
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