Views: 0 Author: Site Editor Publish Time: 2024-09-12 Origin: Site
3A molecular sieve is mainly used in dryers and air separation devices for petroleum cracking gas, refinery gas, oilfield gas and olefins. Such as the drying of ethylene, acetylene, propylene, butadiene, and the dehydration of alcohol and various solvents, as well as natural gas. Application examples are as follows:
The application in isopropanol dehydration:
Isopropanol is an important chemical raw material and organic solvent, which is widely used in the chemical and pharmaceutical industries. The industrial production process produces a large amount of mixed waste liquid of isopropanol and water, so it is necessary to separate isopropanol and water.
3A molecular sieve has a strong drying effect to obtain high-concentration isopropanol without affectting on the state of isopropanol (gaseous, liquid). Nearly a hundred experiments have confirmed that the molecular sieve has good regeneration performance, long service time, and simple operation.
3A molecular sieve can be combined with ordinary distillation tower to achieve the dehydration of isopropanol vapor and reduce consumption.
The application in ethyl acetate dehydration:
3A molecular sieve is commonly used for adsorbing trace moisture in ethyl acetate.
At normal pressure, ethyl acetate contains 8.5% moisture, which means it must be refined to obtain high-purity ethyl acetate. The commonly refining methods are: extraction refining process, azeotropic distillation with constant boiling agent and acetic acid extraction reaction distillation process, etc., but the above methods have high energy consumption.
3A molecular sieve has a strong adsorption effect on moisture, and it is simple to operate and easy to regenerate. Using 3A molecular sieve to adsorb moisture in ethyl acetate to get high-purity ethyl with low energy consumption.
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