Thanks for the information, Andrew.
This TEG system does not contain sour gas (H2S) but 1 to 2 vol% of CO2.
High pH will case foaming in the glycol contactor resulting poor dehydration. It is requested to maintain the operation at optimum pH 6.5 to 7.5.
I am still not clear where/how you get...
Thanks for the discussion.
First, it is kind of difficult to really simulate or calculate the pH of glycol/water mixture in the TEG gas dehydration system since pH is effected by many factors:
1) CO2 or other acidic gases in the gas phase from upstream (TEG is a very weak acid - 50ppm as HAc)...
what type of on-line instrument (pH???)can be used since concentrated TEG/water mixture might interfere traditional pH measurement?
Is 0.2g-TEA/liter-absorbed-water a good starting estimation?
Thanks.
To maintain the pH (6.5-7.5) of the Gas Dehydration system, pH balancer Triethanolamine (TEA)was recommended.
Can anyone advise on how the treatment dosages can be
determined? Can we take a sample and run a titration to see at what volume the pH is best maintained?
Please let me know.
TEA is...
