I have a question regarding the cooling of ethyl acetate
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I would like to ask the experts in this field: I currently use acetate ethyl ester as a solvent for gluing. However, after drying, this solvent evaporates along with the air. I want to recover the acetate ethyl ester from the air; I’ve built a tank in which cold acetate ethyl ester is stored, and the acetate ethyl ester that has evaporated enters this tank and mixes with the cold liquid to be cooled. But this method isn’t very effective. Do you have any better suggestions? Note: 1: I don’t want to use tower equipment; the cost is too high. 2: My fan currently has a power rating of 1.1 KW, with an air volume of 800–1750 NM3/H; the air pressure is estimated to be around ten-odd pascals. 3: Approximately 40 KG of ethyl acetate per hour.
Can cold water be introduced? After ethyl acetate is cooled in water, the water phase separates and the upper layer of acetate flows into other equipment; however, this results in the acetate containing a certain amount of water
Reply to 2# flymx: Ethyl acetate has an effect similar to turpentine; it is absorbed by paint
It is recommended to use the same heat exchanger, with circulating water as the cooling medium.
First of all, I need to tell you that your approach is incorrect; it not only fails to recover ethyl acetate from the exhaust gases but also leads to greater waste. Ethyl acetate already has a low boiling point, and by introducing exhaust gases into it, you cause more evaporation of this substance. One approach is to invest in a absorption tower that uses water for absorption, allowing the fluid to circulate continuously; this way, the ethyl ester in the exhaust gases is absorbed. Over time, it accumulates and separates into layers, enabling the recovery of ethyl acetate. Of course, the material recovered in this way still contains some water (as water is soluble in ethyl ester). I’m not sure if it can be used; if not, it can be sold to ethyl ester producers or a purification tower can be built on-site. If you are interested, please contact us; we can provide a one-stop service including design, manufacturing, and installation.
A small absorption tower solves the problem and doesn’t cost much money
I encountered a problem similar to yours and am seeking a solution! Thank you