| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas oil material production method capable of acquiring a gas oil material having appropriate low temperature performance for producing gas oil for cold districts and having high oxidation stability efficiently.SOLUTION: The gas oil material production method is configured so that: oil to be processed which is obtained by performing hydro-desulfurization to a hydrocarbon raw material including straight-run gas oil (R-LGO) and/or contact decomposition gas oil (LCO), and having 50 mass ppm or less of sulfur content density is brought into contact to hydrogenation isomerization catalyst having a carrier including 10 membered-ring first dimensional pore zeolite, and platinum carried by the carrier and/or palladium carried by the carrier under presence of hydrogen, at reaction temperature in a range of 280-350°C, liquid space speed of 0.5-3.0hhydrogen partial pressure of 2-8 MPa, and a ratio of hydrogen/oil of 150-850 NL/L. From the oil to be processed, the gas oil material having 10 mass ppm or less of sulfur content density and 60 minutes or more of a petro-oxy induction period, can be obtained.</p> |
