Introduction to the Three Major Production Processes of Formaldehyde Equipment

Release time:

2023-09-05

In the process of using traditional methods for formaldehyde production, there are three main processes used, each with its own advantages and disadvantages.

Introduction to the Three Major Production Processes of Formaldehyde Equipment

In the process of using traditional methods for formaldehyde production, there are three main processes used, each with its own advantages and disadvantages. So, do you know what these three production processes for formaldehyde equipment are and what their respective characteristics are? Next, we will discuss this issue with everyone, hoping to be helpful.
Let's learn about the first process - exhaust gas circulation process. In fact, in the process of producing formaldehyde products, the main steps of formaldehyde equipment include methanol evaporation, mixture overheating, filtration, and flame retardancy, followed by oxidation and absorption of methanol. This method can obtain a formaldehyde concentration of up to 37%. However, with the increasing production requirements, more and more enterprises hope to further increase the concentration of formaldehyde products. Therefore, a tail gas circulation process emerged, which resulted in a formaldehyde concentration of around 50%.
The second production process is a low conversion non-alcohol process. Normally, in the process of producing formaldehyde products, the reaction temperature is controlled at 650C. In the process of producing formaldehyde from formaldehyde equipment, there are often side reactions such as CO2 and CO generated. So this may increase the consumption of methanol.
One process is called flue gas circulation process. If this process is used to produce formaldehyde, the resulting exhaust gas will contain many components, such as CO2, CH4, CH2OH, CO, CH2O, and hydrogen. At this point, not only will it affect the usage status of formaldehyde equipment, but it will also increase the consumption of methanol and affect the quality of formaldehyde.
So, in order to solve this problem, a flue gas circulation process was later developed. The flue gas used at this time mainly includes inert gases such as N2 and CO2, which can reduce the production of many other gases and also reduce many side reaction products of formaldehyde equipment. Not only does it ensure the product, but it also reduces consumption.