Marine residual fuel oil and preparation method thereof

The invention relates to a marine residual fuel oil and a preparation method thereof. The marine residual fuel oil comprises, by weight, 15.0-75.0% of vacuum residue, 0-85.0% of wax oil, 0-35.0% of diesel oil and 0-5.5% of oil slurry, the marine residual fuel oil comprises at least two of vacuum residue, wax oil, diesel oil and oil slurry, the kinematic viscosity of the vacuum residue at 100 DEG C is greater than or equal to 1400 mm /s, and the weight percentage of sulfur content is less than or equal to 0.5%. The preparation method comprises the step of mixing the vacuum residue, the wax oil, the diesel oil and the oil slurry in proportion. According to the present invention, with the method, the marine residue fuel oil product with the sulfur content of less than or equal to 0.5% and the viscosity meeting the requirements of different marks such as RME180, RMG380, RMG500, RMG700 and the like is obtained. 本发明涉及船用残渣燃料油及其制备方法。本发明的船用残渣燃料油按重量百分比计，包括：15.0～75.0％的减压渣油、0～85.0％的蜡油、0～35.0％的柴油和0～5.5％的油浆，且该船用残渣燃料油包括减压渣油