Gas-liquid mixing distribution system

Abstract

The invention discloses a gas-liquid mixing distribution system. The system comprises a shell, and a catalyst grid, a cold hydrogen distributor, a collecting disc, a gas-liquid distributor and a distribution disc which are arranged in the shell from top to bottom; mixing chambers are uniformly arranged on the collecting disc; and the distribution disc is fixedly connected with distribution disc supporting beams and the inner wall of the shell respectively, the gas-liquid distributor is vertically fixed on the distribution disc, gas-liquid spray heads are arranged at the positions, located onthe two sides of the distribution disc supporting beams and the inner wall of the shell, of the distribution disc, the gas-liquid spray heads on the two sides of the distribution disc supporting beamsare oppositely arranged in a staggered mode or obliquely arranged in pairs, and the gas-liquid spray heads on the inner wall of the shell are arranged right opposite to the inner wall of the shell orobliquely opposite to the inner wall of the shell. Cold hydrogen can be more uniformly distributed on the total cross section of a reactor, dead zones on the inner wall of the shell and the distribution disc supporting beams are reduced, and the uniform distribution of gas and liquid on the total cross section of the reactor is fully guaranteed.

Description

technical field [0001] The invention belongs to the field of petroleum processing, and in particular relates to a gas-liquid mixing distribution system. Background technique [0002] Due to the exothermic reaction of gas, liquid and solid in the hydrogenation process, in order to make the reaction feed (gas and liquid two phases) and the catalyst (solid phase) fully, uniformly and effectively contact, the hydrogenation reactor is generally designed There are multiple catalyst beds, a distribution plate is set on the top of each bed, and a temperature control structure (cold hydrogen box) is installed between the two beds to ensure the safe and stable production and extension of the hydrogenation unit Catalyst service life. [0003] The hydrogenation reaction of hydrocarbons is an exothermic reaction. For a multi-bed hydrogenation reactor, the temperature of oil gas and hydrogen will rise after the reaction of the upper bed layer. In order to continue the effective reaction ...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the technical problems existing in the prior art that the gas-liquid two-phase fluid is difficult to distribute evenly in the catalyst bed, the mass transfer and heat transfer are not uniform and the heat transfer efficiency is low, the present invention provides a gas-liquid mixing distribution system

Images