Supercritical Fluid Propane-Butane Extraction Treatment of Oil Sludge

• Published in: Russian journal of physical chemistry. B Vol. 11; no. 7; pp. 1103 - 1108
• Main Authors: Gumerov, F. M., Khairutdinov, V. F., Akhmetzyanov, T. R., Gabitov, F. R., Zaripov, Z. I., Farakhov, M. I., Mukhutdinov, A. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-12-2017; Springer Nature B.V
• Subjects: Boiling points; Chemistry; Chemistry and Materials Science; Particulates; Petroleum products; Physical Chemistry; Propane; Sludge; Supercritical fluids; oil sludge; extraction; kinetics; supercritical fluid; butane; propane
• ISSN: 1990-7931; 1990-7923
• DOI: 10.1134/S1990793117070090

The extraction process with propane: butane = 3: 1 (by mass) mixture in the liquid and supercritical fluid states was used to extract petroleum products containing 12.05 mass % of anhydrous oil sludge as solid particulates. The extraction was carried out at 85–160°С and 5–50 MPa. The desired oil product contains 2.8 mass % of sulfur, it has a density of 880 kg/m
3
and a kinematic viscosity of 73.75 mm
2
/s at 20°С as well as start and end boiling point values of 43.6 and 325°С, respectively.