Method for producing high octane gasoline through naphtha
A high-octane gasoline and naphtha technology, which is applied in the petroleum industry, hydrocarbon oil treatment products, and hydrocarbon oil treatment, can solve unrelated problems and achieve the goal of increasing gasoline yield, optimizing gasoline composition, and increasing content Effect
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[0029] In one embodiment, the catalytic reforming catalyst is prepared by a conventional method. Specifically, a shaped inorganic oxide support may be prepared first, such as a spherical or striped type, and then impregnated to introduce the first metal component and halogen. The catalyst contains the second metal component and / or the third metal component. Preferably, the second metal component and / or the third metal component are introduced into the carrier first, and finally the first metal component and halogen are introduced to introduce all The carrier after the metal components is dried and calcined at 450-650°C to obtain the catalytic reforming catalyst in the oxidation state. The oxidized catalytic reforming catalyst needs to be reduced in a hydrogen-containing atmosphere at 315-650°C before use to obtain a reduced catalytic reforming catalyst.
[0030] In the present invention, the second fractionation in step (4) is used to obtain a second light fraction, a methylcyclo...
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[0050] Instance
[0051] (1) Hydrorefining of naphtha raw materials.
[0052] In a 20 ml fixed-bed continuous flow reactor, 20 ml of hydrorefining catalyst A is charged. On a dry basis, the hydrorefining catalyst A contains 0.03% by mass of CoO, 2.0% by mass of NiO, and 18.5% by mass of WO 3 , 0.5% by mass of Cl and 78.97% by mass of Al 2 O 3 .
[0053] The composition and properties of the naphtha feedstock shown in Table 1 are set at 290℃, pressure 2.0MPa, hydrogen / hydrocarbon volume ratio 200:1, and feed volume space velocity is 8.0h -1 Under the above conditions, it is passed into the reactor filled with catalyst A for hydrorefining. The reaction product is sent to a water cooler, separated into two phases of gas and liquid, respectively measured and analyzed for composition. The composition and properties of the hydrorefined naphtha obtained after hydrorefining are shown in Table 2.
[0054] (2) The first fractionation of hydrofining naphtha.
[0055] The hydrorefined naphtha in s...
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