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Gas-liquid distributor

A gas-liquid distributor and blister technology, applied in chemical instruments and methods, feeding devices, chemical/physical processes, etc., can solve the problems of increased catalyst backflow probability, small impact force below, catalyst deposition, etc. The effect of smooth passage, small bubbles, and improving the gas holdup of the bed and the impact force of the flow

Active Publication Date: 2016-03-30
SINOPEC ENG GRP CO LTD
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Problems solved by technology

[0007] The purpose of the present invention is to provide a gas-liquid distributor to solve the problem in the prior art that after the gas-liquid mixture flows out of the bubble cap, the speed is relatively small, and the impact force on the bottom is relatively small, which easily leads to catalyst deposition. On the other hand, when the counterflow occurs The technical problem of the increased probability of catalyst reverse flow

Method used

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the technical field of reactor internals, in particular to a gas-liquid distributor. The gas-liquid distributor comprises a bubble cap, a center pipe and a bubble cap ring; the upper end of the center pipe is arranged in the bubble cap, and is connected with the top wall of the bubble cap, and an annular space is formed between the bubble cap and the center pipe; the lower end of the bubble cap is provided with the bubble cap ring, the bubble cap ring is provided with multiple through holes, and the bubble cap ring is used for filling a gap between the bubble cap and the center pipe. The gas-liquid distributor can enable bubbles to be smaller, improves the capability of purging a catalyst of a material flow, and improves a bed gas volume fraction and material flow impact force, the catalyst near the bubble cap can be rushed up during restarting after shut down, and the possibility that the catalyst enters the annular space of the bubble cap when countercurrent occurs can be reduced to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of reactor internal components, in particular to a gas-liquid distributor. Background technique [0002] Biomass pyrolysis technology can convert low-grade biomass energy (woody raw materials, crop waste) into higher-quality liquid biomass tar (wood tar), and the liquid tar yield of this technology is as high as 65-70%. The produced biomass tar has a complex composition, high moisture content, high corrosiveness, low calorific value, instability and easy condensation, and is difficult to miscible with petroleum products (such as gasoline, diesel, etc.). Since the end of the 1990s, countries around the world have successively started research on the technology of refining fuel oil from biomass tar, among which ebullating bed hydrocracking is considered to be one of the methods with the most potential for development. [0003] The gas-liquid-solid three-phase ebullating bed reactor has been widely used in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22B01J4/00
CPCB01J8/1827B01J8/22
Inventor 李立权陈崇刚蔡连波陈强曾倩赵颖李群生朱政盛维武赵晓青李小婷
Owner SINOPEC ENG GRP CO LTD
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