An Enhanced-Solvent Deasphalting Process: Effect of Inclusion of SiO₂ Nanoparticles in the Quality of Deasphalted Oil

Table 1

Ostwald-de Waele estimated parameters for rheological experiments on crude oil and DAO after SDA and -SDA with SOR values of 4, 8, and 12 at 25°C with a fixed dosage of SiO₂ nanoparticles 5 wt% and -heptane as the solvent.

Sample		K (cP·s)	(dimensionless)	RSME%	χ^2
Process	SOR
Crude oil	0	37051877	0.180	9.29	3.45
SDA	4	73321	0.906	6.20	2.37
	8	19552	0.994	0.44	0.18
	12	10670	0.999	0.18	0.08
e-SDA	4	35522	0.979	1.15	0.48
	8	11883	1.017	0.40	0.14
	12	8504	1.006	0.70	0.29