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Yourlocation: Home > News > Increasing the Quality of Furnace Residual Fuel Oils. Extraction Treatment with N-methyl pyrrolidone.
Increasing the Quality of Furnace Residual Fuel Oils. Extraction Treatment with N-methyl pyrrolidone.Atmospheric resid was treated with N-methyl pyrrolidone in the presence of the undecane fraction at mass ratios to the feedstock of 3:1 and 0.5:1 with preliminary light deasphalting with and without pentane. As a result, the sulfur content in the atmospheric resid decreases by four times and the carbon residue decreases by two times. N-Methyl pyrrolidone forms an azeotrope with undecane with a boiling point of 179°C, i.e., 25° lower than for the extracting agent. This allows decreasing the degree of its decomposition in regeneration and corrosion of the equipment.

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