2 replies to this topic

[amit1983]

We are dehydration natural gas with TEG(tri ethylene glycol) and regenerating TEG again.
We have observed TEG color change since last few days from Yellow to green.
There is also pressure in reboiler around 2 psig.Need to know the problem in glycol system
please help

[Art Montemayor]

You are right. You have a problem and you need to get to the cause and reason as soon as possible. You are asking for help without giving out any help to those that can assist you because you fail to tell us all the details of what you are operating, detailed process conditions, recent past history of how unit has worked in the past and what has happened now, TEG analysis results, and a schematic PFD with process conditions.

[anjumaziz]

Need to know the TEG reboiler temperature, gas specification which is passing through TEG contacting tower, latest TEG lab reports (i.e Ph,gravity, & Fe contents etc). There should not be pressure buildup in TEG reboiler, i hope there must be a PSV installed on reboiler. Howwever, to figgure out root cause complete information is required. Case should be treated on priority to avoid any hazard, solvent losses and offcourse revenue losses.