I seek advice from all the experts in chlor-alkali industry! ~~~~~~~
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This post was last edited by sunjl1981 on 2013-1-6 at 20:58. Since the chlorine-consuming equipment downstream shuts down once a month, relevant modifications were made to the process in order to avoid damage caused by frequent emergency shutdowns. Could the seniors please help analyze whether there will be any issues after the modifications? I hope everyone will not hesitate to share their insights. Thank you very much. 1. The original design by the design institute was chlorine --- compressor --- liquefaction --- liquid chlorine storage tank --- vaporizer --- directly to the downstream chlorine-consuming units. 2. Our revised plan is as follows: Chlorine -- Compressor --------------------------------------------------- Add a chlorine buffer tank + + ------------ Users that consume chlorine downstream. Compressor ------ Liquidification ---- Liquid chlorine storage tank --- Vaporizer ------------ Add a chlorine buffer tank. (Note 1: The supply of chlorine to downstream users is changed from being provided directly by the vaporizer to being supplied in two forms: compressed chlorine gas and vaporized chlorine gas.) (Usually, the liquefaction unit operates at 50% load.) (2. If there is no demand for chlorine gas downstream, increase the load on the liquefaction unit and feed it into the storage tank. The rest should directly eliminate the harmful towers to buy time. To provide a buffer for parking or restarting downstream. ） # + + . hcbbs
The reform of the process depends on the requirements for chlorine purity downstream. I noticed that your downstream products require vaporized chlorine, that is, high-purity chlorine gas. If your downstream products can accept elemental chlorine, then it’s better to use elemental chlorine directly – why go the extra step of providing gaseous chlorine? It should be noted that the cost of liquefying and vaporizing chlorine is very high; the cost per ton increases by over 100 yuan. Your original process used a liquid chlorine storage tank as a buffer, so it should not have had a significant impact on production stability. If liquid chlorine is intended for internal use only, then a low inventory level of liquid chlorine should be maintained; the remaining inventory capacity can be used to mitigate the impact of shutdowns downstream, while adjusting the operating load of the electrolysis plants upstream. So, your modification needs to be determined based on your own requirements. There is no issue of being reasonable or unreasonable regarding these two processes.
I don’t understand anything about chemical engineering equipment; I’m here to learn. Wishing the Haichuan Forum continued success! ! ! :hug: