Gas-liquid distribution device

Abstract

The invention discloses a gas-liquid distribution device. The gas-liquid distribution device comprises a reactor wall, and a distribution plate, an overflow pipe and a distribution disc which are arranged along the reactor wall from top to bottom, wherein the distribution plate is a flat plate, is consistent with the section of a reactor in shape, is supported on the wall of the reactor and is provided with flow guide holes; the overflow pipe is a circular pipe with two open ends, the lower end of the overflow pipe is fixed on a mounting hole in the distribution disc, and overflow holes are uniformly formed in the pipe wall along the circumferential direction to serve as liquid phase channels; and the upper end of the overflow pipe is a free end, is positioned below the distribution plate, is over against the center of a non-perforated area between the flow guide holes in the distribution plate and is completely shielded by the non-perforated area. Compared with a common scheme of blocking overflow pipes one by one in the prior art, the distribution plate used in the invention has the advantages of small processing amount, short manufacturing period and low cost while the purpose of preventing an upper liquid phase from directly entering the overflow pipes can also be achieved. According to the invention, the contact time of a gas phase and a liquid phase is prolonged, dissolution of the gas phase in the liquid phase is promoted, and meanwhile, the phenomenon of inner wall flow of the overflow pipe is effectively avoided.

Description

technical field

[0001] The invention belongs to the field of petroleum refining and chemical equipment, and relates to a reactor internal component, in particular to a gas-liquid distribution device. Background technique

[0002] In recent years, with the gradual upgrading of petrochemical product quality standards and increasingly stringent environmental protection regulations, hydrogenation technology has played an increasingly important role in the oil refining industry. In order to improve economic efficiency and meet the requirements of environmental protection, oil refining enterprises have rapidly expanded the hydrotreating capacity of various oil products.

[0003] The key core equipment for hydroprocessing is the hydrogenation reactor. Inside the hydrogenation reactor, a mixture of a certain proportion of hydrogen (gas phase) and raw oil (liquid phase) is used at a certain temperature and pressure to complete various hydrogenation processes. hydrogen reaction. The...

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