Does the liquefaction of chlorine fall under chlorination processes?
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Located in Shandong, a team of experts came to the company for an inspection and required that all personnel working in the liquid chlorine packaging section (responsible for liquefying chlorine gas and packaging liquid chlorine) obtain certificates for working in chlor-alkali electrolysis processes as well as certificates for working in chlorination processes. Has anyone encountered such a situation? Are there any regulatory documents specifying that chlorine liquefaction falls under the chlorination process?
The storage and transportation phase in the chlorination process is a key monitoring unit within this chemically intensive process that requires strict oversight. The main hazards include 1) chlorine’s high toxicity and strong oxidizing properties； 2. The liquefaction process is endothermic ； 3. Oxidation reactions produce corrosive and toxic hydrogen chloride ； Once leakage, heat release, strong oxidizing properties, and high toxicity combine, the danger becomes extremely great.
I’ve learned it, thank you \ud83d\ude0a. I see that it was only considered from the perspective of chemical reactions.
In my opinion, one is a physical process and the other is a chemical process
The key monitoring units in the chlorination process are the chlorination reaction step and the storage (or preparation) step of the chlorinating agent. For the chlorination reaction step, it is essential to monitor the temperature, pressure, and liquid level of the chlorination reactor, as well as the flow rate of the chlorinating agent, the current (or speed) of the agitator, and the composition of the exhaust gases. Additionally, the temperature, pressure, and flow rate of the cooling medium in the cooling system also need to be monitored. In the storage (or preparation) process of chlorinating agents, key parameters to monitor include the temperature, pressure, and liquid level of the liquid chlorinating agent tank, as well as the pressure of the gas-phase chlorinating agent tank. For chlorination reactions that use liquid chlorine as the chlorinating agent, it is also necessary to monitor the concentration of nitrogen trichloride in the liquid chlorine vaporizer and the chlorine buffer tank, as well as the temperature and flow rate of the hot water in the liquid chlorine vaporizer.
This post was last edited by marongqiang on 2022-1-18 08:45. Chlorination process operations refer to the tasks associated with the storage of liquid chlorine, its vaporization, and the chlorination reaction. It is suitable for operations in processes such as substitution chlorination, addition chlorination, and oxychlorination. The chlor-alkali electrolysis process involves operations related to the electrolysis of sodium chloride and potassium chloride, as well as the storage and filling of liquid chlorine. It is suitable for the operational procedures in processes such as the electrolysis of sodium chloride (table salt) aqueous solutions to produce chlorine, sodium hydroxide, and hydrogen, as well as the electrolysis of potassium chloride aqueous solutions to produce chlorine, potassium hydroxide, and hydrogen. In my opinion, for enterprises that produce liquid chlorine as a product, it is sufficient to obtain a certificate for the chlor-alkali electrolysis process
This post was last edited by Du Xiaoping on 2022-1-18 at 11:22; the vaporization of liquid chlorine is an endothermic process； The liquefaction of chlorine is exothermic
In any case, focusing on safety, promoting technology, and improving quality are good things.
It does not belong; liquefaction is not among the 18 processes. The liquefaction of chlorine is a physical process, with no chemical reaction involved； However, the electrolysis process in chlor-alkali production is one of the two key processes.
Can you be sure that your chlorine liquefaction process is endothermic?;P