Treatment of acrylonitrile waste gas
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Have any of you experts worked on projects related to the treatment of acrylonitrile waste gas? Is there any good solution you can recommend? Catalytic combustion is too expensive; many companies cannot afford it.
This post was last edited by slll611 on 2016-2-3 at 11:53. If combustion is used, both the capital investment cost and operating costs are very high； Low-temperature catalytic oxidation technology could be considered; it is a technology developed by **Science and Technology University, with many application examples. If you are interested, feel free to contact me via private message.
The mainstream treatment technologies remain incineration, catalytic incineration, or thermal incineration, all of which are used in China. State-owned enterprises use catalysis more often, while non-state-owned enterprises generally use thermal incineration.
Although catalytic combustion technology is excellent, some small enterprises do not have the sufficient funds to implement it. We are now considering the use of photocatalysis, as acrylonitrile is also a substance with multiple bonds and is relatively unstable compared to benzene derivatives. However, one concern is that acrylonitrile reacts violently with oxidants; there is a fear that high-oxidizing agents such as ozone and hydroxyl radicals generated by photocatalysis could create safety hazards. Are there any friends who have worked on similar cases?
The principle of low-temperature catalytic oxidation technology is similar to that of photo-oxidation; the concern is that the high-level oxidizing agents generated may pose safety risks for substances such as acrylonitrile, which react violently with oxidants. Have you worked on any projects involving acrylonitrile?
This gentleman doesn’t seem to know whether the acrylonitrile waste gas he is referring to is the waste gas generated by acrylonitrile production facilities or waste gas that mainly contains acrylonitrile components – there is a significant difference between the two. My answer is directed at the former. The amount of acrylonitrile contained in the exhaust gases generated by actual acrylonitrile plants can be considered minimal~
Uh. I mean your latter one. very high concentration
There have been no cases specifically dealing with the exhaust gases containing acrylonitrile, but many projects have been carried out to treat methyl pyridine in pesticide factories, formaldehyde and propylene in chemical plants, as well as DMF in leather factories, among others. If you’re interested, we can discuss it in more detail.
Absorption and adsorption can be used, but the investment required is also significant
The best method for treating acrylonitrile waste gas is to use an RTO