Three production processes of a complete set of formaldehyde equipment

In the traditional way of formaldehyde production, the main technology used in three ways, each of these three ways has its own advantages and disadvantages. So, do you know what the three production processes of formaldehyde equipment are? What are their respective characteristics? Next, we will focus on this problem and discuss with you all, hoping to help you.

First of all, let's learn about the next technology -- exhaust gas recycling process. In fact, formaldehyde equipment in the process of making formaldehyde products, the main links are methanol evaporation, mixed gas overheating, filtration, fire resistance, after the oxidation of methanol, absorption, this method of formaldehyde concentration of up to 37%. However, with the improvement of production requirements, more and more enterprises hope to further enhance the concentration of formaldehyde products. As a result, the exhaust gas recycling process is in place, so that the formaldehyde concentration can reach about 50%.

The second production processes are low conversion of alcohol free process. Usually, in the process of producing formaldehyde, the reaction temperature is controlled at 650 C. In the process of formaldehyde production from formaldehyde equipment, some side reactions such as CO2 and CO often occur. So this may increase the consumption of methanol.

The last process is called the flue gas cycle process. If this process is used to produce formaldehyde, there are many components in the tail gas, such as CO2, CH4, CH2OH, CO, CH2O and hydrogen. At this time, it will not only affect the use state of formaldehyde equipment, but also increase the consumption of methanol, and also affect the quality of formaldehyde.

Therefore, in order to solve this problem, the flue gas recycling process was developed later. 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 a lot of side reaction products of the formalin complete equipment. It not only guarantees products, but also reduces consumption.