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This post was last edited by sunjl1981 on 2013-1-6 at 21:08. Experts, I saw you say in the forum that the moisture level in your companies is kept around 100PPM, or even lower, and it remains very stable! Our company also uses a three-stage drying process (under negative pressure) with small turbines operating in parallel, but the moisture level in our company remains around 200PPM. We employ chemical analysis methods for this purpose. Do you use online analysis or chemical analysis for determining moisture levels? Also, the liquid chlorine sold by our company is supplied to manufacturers of tetraalkyl chlorides, who report that the reaction with chlorine is incomplete; after some time, the reaction temperature drops. What could be the reason for this? hcbbs !! . hcbbs
3 towers operate under negative pressure, large turbines; online analysis shows around 2 PPM
Oh, then have you used chemical analysis methods to conduct tests, and what is the difference in the results?
It hasn’t been analyzed using chemical methods; I’ll give it a try next week.
We use chemical analysis methods to keep the moisture level around 50, and it is also affected by the number of start-up and shutdown cycles, the changing current levels, as well as external weather conditions. Regarding your issue with chlorinated paraffins, I’ve seen other posts stating that it is related to sulfate ions and SO2 in liquid chlorine; you can take a look at this link on that topic. . . . . . . . The impact of blocked liquid chlorine filling tubes and the quality of liquid chlorine on the reaction endpoint for chlorination of paraffins; blocked liquid chlorine filling tubes: http://bbs.hcbbs.com/thread-1034675-1-1.html
Our plant features a packed tower and a mixing tower, operates under negative pressure, uses large turbines, and enables online analysis at around 5 ppm; however, chemical analysis is still required on a regular basis
Most companies use online analysis. Chemical analysis has large errors and is highly affected by the environment.