What type of gas distributor to choose?

Tower internals are an important part of the packed tower. Together with the packing and the tower body, they form a complete packed tower. The function of all tower internals is to make the gas-liquid two-phase contact better in the tower so as to maximize the efficiency and production capacity of the packing. The design of the tower internals will directly affect the performance of the packing and the performance of the entire packed tower. Packed tower internals include liquid distributors, liquid redistributors, gas distributors, packed bed limiters, demisters, etc. Gas distributors There are many forms of gas distributors, which depend on the gas phase state (single-phase, two-phase), application (distillation, absorption), gas phase load, operating pressure, allowable pressure drop, tower diameter and other factors. Especially in the case of large tower diameter, high load and low bed layer, the design of gas distributor is particularly important.

The double tangential circulation type has its own patent (utility model (improved on the basis of Grich)), and has been done a lot.

Is it better to use the double-row blade type or the tangential horn type? These types can also play a good role in distributing gas and separating the liquid phase in the gas phase, and save materials and reduce costs. The double-tangential circulation type is recognized as reliable, but relatively bulky.

Friends, what type of gas feed distributor have you seen in a vacuum tower or atmospheric tower?

Two distributor types are provided below for your reference: The double tangential circulation air intake distributor is a progressive distributor with excellent comprehensive performance and is widely used. The double tangential circulating flow progressive distributor designed and produced by our factory is equipped with a flow guide and a liquid capturing energy absorber, which significantly improves the uniformity of gas distribution and reduces the liquid entrainment rate and pressure drop. The radial air intake distributor is an axially symmetrical, diversion type, radial progressive distributor, and is the latest development of the radial progressive distributor. The radial progressive distributor is ingeniously conceived, has a unique structure and has excellent performance. It is currently the most advanced air intake distributor. Radiant air intake distributors are divided into two categories and four types: 1.1 Radial air intake distributor with umbrella-shaped diffuser. The high-speed airflow enters the central radiator through an upward or downward pipe. The radiator divides the gas into multiple layers of parallel airflows in proportion and ejects them along the radial direction. The umbrella-shaped diffuser guides the airflow into axial parallel airflow and separates the carried liquid to achieve the dual purposes of uniform gas distribution and gas-liquid separation. 1.2 Radial air inlet distributor with liquid-catching energy absorber. The high-speed airflow enters the central radiator through an upward or downward pipe. The radiator divides the gas into multiple layers of parallel airflows in proportion and ejects them in the radial direction. The radiant airflow carries the liquid and shoots towards the annular liquid-catching energy absorber located on the inner wall of the tower. The liquid-catching energy absorber absorbs the kinetic energy of the gas and captures the droplets at the same time, so that the gas is evenly distributed. This post was last edited by 263525689 on 2009-2-21 21:27 ]

In the design of the styrene tower, I only set up the gas distributor in the column kettle, and the other layers were also considered when setting up the liquid distributor. The reason is that gas diffusion is much easier than liquid. The key is to achieve uniform initial distribution in the tower.

There are blade type feed distributors at the bottom of the normal pressure tower, as well as baffle type and tangential feed distributors.