Recent content by B62plant

No, it's a gas/teg exchanger. I'm going to check the DT (gas/teg) as you suggest

I think you may have something here, thanks. Is it possible I have TEG carryover and it is freezing in the separator ?? I'm going to try and increase the temperature by slipstreaming a little gas past the coolers and see what happens.

KF on rich and lean TEG shows 8.6 & 0.2. Moisture meter is brand new, only fitted last month and was calibrated then.

Yes, that is the set up I have a moisture analyser at TEG unit outlet so I know it's 0.2 lbs/mmscf and most of the water is taken off by the nitrogen membranes and removed via the KO drums before it even gets to the TEG contactor column (yes I have gas stripping in regen unit) I have injection...

There is a MeOH injection system and the problem persists with or without injection on. The upstream is simply a feed from TEG dehydration plant. CAPEX was indeed the reason for compressor choice.

Even if true that would not explain anything as the up and down steam pressures both cycle. I have discovered (by fitting local PI) that the pressure drop is across a much wider section of the process and extends to the downstream cooler exchangers though

There is a nitrogen removal (membrane based) system upstream which removes most of moisture

Yes vessel in question is labelled LTS. The JT valve is the one upstream on it's inlet. 25 F 850 psig 90 mmscfd 0.2 lbs/mmscf water content HYSIS tells me hydrate formation not possible until water content is >4lbs/mmscf I would add that this high DP does not cause me any problems !! There is...

I don't need too much accuracy so I've took samples of lean and rich TEG .. 0.8% and 7% ... I can work out a rough efficiency from this

Horizontal Both on same level Condensate is fine, may possibly have very low content of lube oil from compressor injection No additives https://files.engineering.com/getfile.aspx?folder=f7e61c9f-1806-468b-accf-35065ffb545e&file=IMG_1138.jpg

I have gas at 1500 psig dropping to 850 psig across a JT valve. The resultant condensate from the letdown flows into a 2 phase separator through a Schoepentoeter baffle with liquid flowing out to further processing and gas coming out through a demister. I am seeing at certain times a DP across...

Thanks, yeah I know this but I don't have the data. I could get it but I was just looking to see if anyone had any idea from experience of a rough efficiency of a typical system. It's not critical enough for me to spend time doing the calcs. I was thinking about 95% removal of entrained water ?

Anyone give me rough idea of the efficiency of a TEG dehydration system ? For example if I have 10 lbs/mmscf of water in the inlet gas what should I get out ? I'm thinking it should be 1 lb/mmscf and the efficiency is 90% ?

I'll take a look thanks but our process team think the gas oil content is too low for a cyclone system to work

I think I'd be creating more problems than I have already trying to pre chill the gas. I'll see what PEKO tells me and post results.