A METHOD FOR PRODUCING GAS TURBINE FUEL OIL FROM FEED OIL WITH INCREASE YIELDS

摘要

A method for producing gas turbine fuel oil from feed oil with increased yields, comprising: - a first separation step of separating heavy feed oil consisting of atmospheric residue oil obtained by atmospheric distillation of crude oil and/or heavy oil into a light oil matter and a heavy oil matter; - said first separation step being selected from the group consisting of vacuum distillation, solvent deasphalting, thermal cracking and steam distillation; and a second hydrotreating step of contacting said light oil matter produced in said first separation step with pressurized hydrogen in the presence of a catalyst (at a hydrogen gas pressure within a range of 30 to 150 kg/cm2), to thereby carry out an impurity removal treatment, resulting in obtaining refined oil; a second separation step of separating said heavy oil matter produced in said first separation step into a light oil matter and a heavy oil matter; said second separation step being selected from the group consisting of solvent deasphalting and thermal cracking; a third hydrotreating step of refining said light oil matter produced in said separation step (at a hydrogen gas pressure within a range of 50 to 200kg/cm2), to thereby obtain refined oil, and gas turbine fuel oil which is refined oil thus obtained being 4 cSt or less in viscosity at 100 °C, containing alkaline metal in an amount of 1 ppm or less, lead in an amount of 1 ppm or less, V in an amount of 0.5 ppm or less, Ca in an amount of 2 ppm or less and sulfur in an amount of 500 ppm or less, and being produced with yields of 40% or more based on said heavy feed oil.