Naphtha and methanol mixed aromatization device and use method thereof

Abstract

The invention discloses a naphtha and methanol mixed aromatization device and a use method thereof. The naphtha and methanol mixed aromatization device comprises a plurality of hollow spheres with deformability, the hollow spheres are used for containing naphtha, a catalyst layer is arranged on the inner wall of the hollow sphere located on the outermost layer, and catalyst layers are arranged on the inner wall and the outer wall of the hollow sphere located on the inner layer; a plurality of communicating pipes which are uniformly distributed are arranged among the hollow spheres, a container is arranged outside the hollow sphere on the outermost layer, a water source fills between the container and the hollow sphere on the outermost layer, a cavity is formed in the container, an external connecting pipe communicated with the cavity is arranged on the container, and the external connecting pipe is used for introducing methanol; one end of each communicating pipe penetrates through the hollow sphere located on the outermost layer and is communicated with the cavity in the container, and the other end of each communicating pipe is communicated with the hollow sphere located on the innermost layer. The device can effectively reduce the problems that the reactor of a traditional structure cannot uniformly react in the same temperature interval, the temperature drop is too large, the catalytic effect difference is large, and explosion is prone to occurring.

Description

technical field [0001] The invention relates to the field of oil processing, in particular to a naphtha-methanol mixed aromatization device and a use method thereof. Background technique [0002] Crude naphtha aromatization process uses naphtha as raw material. The reaction temperature is 300-380°C, the catalyst is cracked and then polymerized again, and multiple cyclized products or isomerized products are generated after polymerization to achieve the purpose of increasing the octane number of naphtha. The whole reaction of the catalyst is an endothermic reaction, the bed filling height is 15 meters, and the temperature drop is 20°C. When the top temperature in the reactor reaches the reaction temperature, the temperature in the middle and lower parts will be lower than the reaction temperature due to the overall reaction temperature drop, resulting in the inability to fully release the catalyst activity. If the top temperature is excessively increased to adapt to the bot...

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Problems solved by technology

[0003] Aiming at the above-mentioned existing problems, the technical problem to be solved by the present invention is that it can effectively reduce the inability of conventional reactors to react uniformly in the same temperature range, and the excessive temperature drop will lead to large differences in catalytic effects, which are prone to explosion, and can ensure different The input amount of methanol in the area is consistent, further reducing the reaction effect in different areas A kind of mixed aromatization device of naphtha and methanol

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