A method for producing jet fuel by hydrogenation of straight-run diesel oil
A technology for straight-run diesel and jet fuel, which is used in hydrocarbon oil treatment products, hydrotreating processes, and hydrocarbon oil treatment. , The effect of saving operating costs and improving yield
Active Publication Date: 2019-01-25
CHINA PETROLEUM & CHEM CORP +1
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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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Embodiment 1～6
[0029] In this example, two kinds of straight-run diesel oil, A and B, are used as feedstock oil, and the catalysts are all commercial catalysts developed by Fushun Petrochemical Research Institute. The hydrocracking reactor is mixed with FC-50 hydrocracking catalyst, FDW-3 hydrogenation depressant catalyst. The supplementary hydrofinishing reactor is filled with FF-46 hydrofinishing catalyst, and the specific operation process used is shown in the appendix figure 1 . In the embodiment, the form of two reactors connected in series is adopted. The properties of the feedstock oil are shown in Table 1, the basic properties of the catalyst are shown in Table 2, the feedstock oil of Examples 1 to 3 is straight-run diesel oil A, and its process operating conditions and results are shown in Tables 3 to 4; the feedstock oils of Examples 4 to 6 are Straight-run diesel oil B, its process operating conditions and results are shown in Table 5-Table 6. The volume ratios of the hydrocrac...
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The invention discloses a method for producing jet fuel by hydrogenating straight-run diesel oil. The method comprises the following steps: (1) mixing a straight-run diesel oil raw material with hydrogen gas, without the need of carrying out hydrogenation treatment; directly enabling a mixture to enter a hydrocracking / pour point depression reaction region; enabling the mixture to be in contact with a hydrocracking catalyst and a pour point depression catalyst, which are mixed and filled; carrying out hydrocracking / pour point depression reaction; (2) after cooling a full-fraction hydrocracking / pour point depression reaction product obtained by step (1), enabling the product to enter a hydrogenation refining reaction region; under a condition of relatively low temperature and / or a large volume space velocity, carrying out aromatic hydrogenation refining reaction; (3) enabling a refined full-fraction product obtained by step (2) to enter a separation and fractionation system, so as to obtain naphtha and jet fuel products. Compared with the prior art, the method disclosed by the invention can be used for producing the straight-run diesel oil into the jet fuel at maximum.
Description
technical field [0001] The invention relates to a production method of jet fuel, in particular to a production method for producing high-quality jet fuel through straight-run diesel hydrocracking. Background technique [0002] With the continuous expansion of the international air transport industry, the global demand for jet fuel is increasing year by year, with an annual growth rate of about 5.0%, far higher than the annual growth rate of gasoline and diesel of 1.0% to 1.5%, which has greatly driven the global The demand for high-quality jet fuel products in the oil market has also promoted the rapid development of jet fuel production technology in the oil refining industry. Worldwide, the existing jet fuel production technologies are mainly straight-run jet fuel distillate hydrotreating technology and hydrocracking technology. Compared with diesel or gasoline products, jet fuel products have more advantages in profit, which greatly promotes major oil refineries. Enterpri...
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IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/1037C10G2400/02C10G2400/06C10G2400/26
Inventor 彭冲曾榕辉郭蓉吴子明孙洪江方向晨
Owner CHINA PETROLEUM & CHEM CORP