Formaldehyde production process selection

It is best to use the silver catalyst method for your graduation project. Because there are many production devices in China using this method, there is a lot of information for reference. However, the iron-molybdenum catalyst method is generally aimed at large-scale production devices, and they all introduce foreign technology, so it is difficult to find relevant information.

Most of the domestic products are electrolytic silver which is relatively safe.

I think it is better to use the silver process. Most domestic manufacturers use this method to produce formaldehyde.

The research on electrolytic silver for formaldehyde production process also has certain prospects...

In fact, the two current production methods have their own advantages and disadvantages. It depends on where the owner focuses? ? Silver method for formaldehyde, advantages: It has mature technology, short process, low investment, low power consumption, full utilization of heat, and large single series production capacity. ； shortcoming: The methanol consumption is high, the catalyst life is short, and there are many impurities such as methanol and formic acid remaining in the formaldehyde solution. Iron-molybdenum method for formaldehyde production, advantages: The device has a large scale, low methanol consumption, a methanol conversion rate of 95% to 99%, a catalyst life of more than 1 year, a lot of by-product steam, a product concentration of 55% to 58%, and low alcohol content. ； shortcoming: The process is long, the investment is large, and the power consumption is high. Hope it will be helpful to the original poster. .

Silver method, iron-molybdenum method. Look at the needs of subsequent work sections.