Methanol recovery towerThe main materials of this model are SUS304, SUS316L, titanium, etc. for the parts in contact with materials according to user needs. Other components are made of carbon steel, cast iron, cast steel, etc. Widely used in ethanol, methanol, acetone, ethyl acetate, acetonitrile, tetrahydrofuran, dichloromethane DMF、DMSO、 The recovery and product separation and purification of organic solvents such as toluene, isopropanol, and tert butanol have been industrialized and applied in over 600 industries including raw materials, pharmaceutical intermediates, fine chemicals, biodiesel, environmental protection, and liquor production.

The purpose of this recovery tower is to recover methanol, which requires that the methanol content at the top of the tower should not exceed 1%, and the methanol content in the bottom water of the tower should not exceed 0.1%.

Methanol is a relatively simple saturated monohydrate with a molecular weight of 32.04 and a boiling point of 64.7 ℃. Also known as "wood alcohol" or "wood essence". It is a colorless liquid with a methanol odor that is easily volatile. The low dose of oral ingestion for population poisoning is about 100mg/kg body weight, and ingestion of 0.3-1g/kg can be fatal. Used for manufacturing formaldehyde and pesticides, and as an extractant for organic compounds and a denaturing agent for methanol. It is usually produced by the reaction of carbon monoxide and hydrogen, and is flammable. Its vapor can form explosive mixtures with air, which can cause combustion and explosion when exposed to open flames and high heat energy. Chemical reactions or combustion may occur when in contact with oxidants. In a fire scene, heated containers pose a risk of explosion. It can spread to a considerable distance at a lower level, and when exposed to an open flame, it will ignite and decompose carbon monoxide and carbon dioxide, which is highly toxic. Methanol is widely used as a basic organic chemical raw material and fuel. Mainly used in the fields of fine chemicals, plastics, etc., it is used to manufacture various organic products such as formaldehyde, acetic acid, chloromethane, methylamine, and dimethyl sulfide, and is also an important raw material for pesticides and pharmaceuticals. Methanol can be used as a new type of clean fuel after deep processing, and can also be co burned with gasoline. Methanol and ammonia can react to produce methylamine.

The existing methanol recovery equipment has the problem of slow distillation separation during methanol recovery, requiring multiple separations and poor separation efficiency. The separated methanol has a slow collection speed and cannot effectively condense, resulting in a slow working efficiency of the methanol recovery equipment. Therefore, we propose a methanol recovery equipment.

According to the different volatilities of methanol and water, under the same conditions, after multiple condensation and gasification, the component with higher volatility (methanol) will form a higher concentration at the top of the tower, while water is left at the bottom of the tower. As long as there is sufficient theoretical board height, satisfactory target products can be obtained.

The equipment utilizes the centrifugal force field generated by rotation instead of the conventional gravity field, greatly enhancing the gas-liquid mass transfer process. This new type of distillation equipment developed using supergravity technology can greatly increase the relative velocity between air and solutions such as alcohol and methanol in practical applications, accelerate the renewal of the phase interface, and double the production intensity, achieving the goal of increasing recovery efficiency, reducing equipment size, and lowering energy consumption. It is known as the "transistor of the chemical industry".

The specific implementation process is as follows: as a continuous phase of gas, it enters the shell through the inlet 2, flows from the outside of the rotor along the gap between the static baffle and the dynamic baffle under the action of pressure difference, and then leaves the bed through the outlet 5; As a dispersed phase solution, it enters the center of the moving disk through inlet 6 and is then repeatedly thrown towards the static baffle by a series of high-speed rotating dynamic baffles. After being collected inside the shell, it is extracted and recovered through outlet 9. The liquid phase undergoes multiple processes of acceleration, ejection, and impact. During this process, the liquid and gas come into contact with each other at a very high relative velocity, and the liquid is thrown away from the sieve holes of the moving coil as extremely fine droplets. The high-speed moving droplets are collided, sheared, and splashed on the moving and stationary coils, forming small droplets, liquid filaments, and liquid films, thus obtaining a gas-liquid interface with a large specific surface area and constantly updating, making gas-liquid contact quite sufficient and thus having a high mass transfer rate.

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