Questions about mixed-bed resin
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Dear experts, I would like to ask whether condensate recovered from the recycling process has any impact on the resins in the demineralized water mixed-bed? What would be the impact if there is one? Thank you. Note: We use the ammonia synthesis process.
What is contained in the process condensate collected by the poster? If it is steam condensate, it can be used directly; however, if it contains many other substances, it does have an impact on the mixed-bed resins.
Reply to 2# Yan Qiusheng: It’s not steam condensate; it’s process condensate. Products such as ammonia and methanol, etc
Process condensate containing ammonia and methanol must be sent to wastewater treatment and cannot be recycled to the demineralized water mixed bed.
Reply to 4# 654262293: I forgot to add that our process condensate is recovered after low-pressure stripping. After recovery, the analysis showed that parameters such as conductivity and pH were normal; however, recovering it to the demineralized water mixed-bed significantly shortened the service life of that mixed-bed.
Was it stripped with low-pressure steam? Generally, after steam stripping, only a portion of the ammonia and methanol can be removed; it is suitable to send it to wastewater treatment, but it is not appropriate to send it to the demineralized water mixed-bed for recovery.
Reply to 6# 654262293: Haha, we have been using demineralized water for a long time now; it’s just that after starting to use it, we noticed that the operating cycle of the mixed-bed system has become shorter. I don’t know the principle behind it.
Reply to 7# liuchao7324835: The short operating cycle of the desalinated water mixed-bed is caused by the recovery of process condensate.