Method for producing jet fuel

Abstract

The invention discloses a method for producing jet fuel. The method comprises the following contents: a straight-run diesel oil raw material and hydrocracking generated oil are mixed, heated and / or subjected to heat exchange and enter a reaction rectification tower from the middle, and a product descends into a catalytic reaction zone filled with a hydrofining catalyst in the tower for hydrofiningreaction, wherein light components rise to the rectification section of the reaction rectification tower for fractionation, one part of the liquid phase as overhead reflux flows into the reaction rectification tower, and the other part comprising naphtha, jet fuel and the like as products is discharged out of the system; heavy components continue to descend in a stripping section, are dischargedfrom the bottom of the tower, and enter a hydrocracking reactor filled with a hydrocracking catalyst for hydrocracking reaction. According to the method, the straight-run diesel oil is taken as a mainraw material, the reaction process and the reaction depth are adjusted and controlled by selecting a proper process flow and catalyst system, more components in the straight-run diesel oil raw material are converted into jet fuel products, and accordingly, the yield of the jet fuel products is increased, and the quality of the jet fuel products is improved.

Description

technical field [0001] The invention relates to a method for producing jet fuel, in particular to a method for producing high-quality jet fuel by using straight-run diesel oil fractions as raw materials. Background technique [0002] With the continuous expansion of the international air transport industry, the global demand for jet fuel has increased year by year, with an annual growth rate of about 5.0%, which is much higher than the annual growth rate of gasoline and diesel of 1.0% to 1.5%, which has greatly driven the global demand for jet fuel. The demand for high-quality jet fuel products in the oil market has also contributed to the rapid development of jet fuel production technology in the refining industry. Worldwide, the existing jet fuel production technologies are mainly straight-run jet fuel fraction hydrorefining technology and hydrocracking technology. Compared with diesel or gasoline products, jet fuel products have more advantages in profit, which greatly ...

AI Technical Summary

Problems solved by technology

However, this method needs to increase more equipment, and the circulation of kerosene fraction is relatively large, which increases the investment of the device, and the operation is more complicated

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