Upflow distributor and upflow reactor

Abstract

The invention relates to the field of petrochemical engineering and discloses an upflow distributor and an upflow reactor. The upflow distributor comprises a main flow guiding tube (1), a gas flow guiding tube (2) and a mixing part (3), wherein gas stream can be transmitted by the gas flow guiding tube (2); and the upper end orifices of the main flow guiding tube (1) and the gas flow guiding tube (2) both communicate with the mixing part (3). The gas flow guiding tube is mainly used for transmitting gas fluid separated from mixed fluid while the main flow guiding tube is used for transmitting the rest fluid which is mainly liquid fluid, and the fluids flowing through the main flow guiding tube and the gas flow guiding tube are mixed at the mixing part. By adoption of the technical scheme, the fluids flowing through the main flow guiding tube and the gas flow guiding tube reach the mixing part, and the mixing part enables gas and liquid in the mixed fluid to be better mixed.

Description

Technical field [0001] The present invention relates to the field of petrochemical industry, in particular to an upflow distributor and an upflow reactor. Background technique [0002] At present, in the petrochemical industry, upflow reactors are widely used, such as fixed bed flow hydrogenation reactors, distillate liquid phase hydrogenation reactors, suspended bed hydrogenation reactors, and fluidized bed hydrogenation reactors. Regardless of the upflow reactor, the gas-liquid stream needs to be evenly distributed to the interface of the catalyst bed to avoid the adverse effects of drift or channeling. [0003] In an upflow reactor, the gas and liquid flow upward at the same time. Generally, the liquid phase is the continuous phase and the gas phase is the dispersed phase. With the disturbance caused by the upward flow of the flow, the gas phase partially dissolved in the liquid phase will escape. Therefore, before entering the catalyst bed, a flow distribution device is requir...

AI Technical Summary

Problems solved by technology

The mixing performance of the logistics distribution device directly affects the dissolution rate of the gas phase in the liquid phase, which in turn affects the gas-liquid mass transfer efficiency in the reactor.

Although the upflow distributor in the prior art can achieve a certain gas-liquid mixing effect, due to structural limitations, its gas-liquid mixing effect is limited

[0004] The main problem in the upflow logistics distribution device in the prior art is that it cannot provide stable and effective gas-liquid interphase mixing, and the mass transfer efficiency between gas-liquid flows is low

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