Method for producing pure triethanolamine containing micro-water
A technology of triethanolamine and production process, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of discontinuous production process, unstable product quality, low production efficiency, etc., and achieve stable product quality, The effect of low production cost and high production efficiency
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[0019] Example 1:
[0020] (1) Ammonia absorption process:
[0021] Liquid ammonia is delivered to the bottom of the ammonia absorption tower 3 at a pressure of 1500kPa (gauge pressure) and an ammonia flow rate of 120kg / h, and is delivered from the desalinated water storage tank 2 to the top of the ammonia absorption tower 3 through a pump with a water volume of 1200kg / h Water, at the top of the tower, the operating pressure is 100kPa (gauge pressure) and the temperature is 35°C. After 2.5 hours, it will be dissolved into an aqueous ammonia solution with a concentration of 10%. Then, the supplement of liquid ammonia and water will be stopped, and the liquid level at the bottom of the tower will be 40%. ;
[0022] (2) Ethanolamine formation reaction process:
[0023] 10% aqueous ammonia solution is delivered to the reactor 5 at a flow rate of 1800kg / h at one time, and ethylene oxide is delivered to the 5 series tubular reactors 5 at a flow rate of 185kg / h at 5 points. The total eth...
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