Designing a gas dehydrating plant with TREG (tetra ethylene glycol)

[JhoQuiVi]

Hi everybody!

I've looking through technical magazines, technical papers, patents and consulting to suppliers of TREG, but It seems that few companies (I should say practically none) have implemented a gas natural dehydration with TREG (tetra ethylenen glycol). I'm a part of a researching group and we are studying the chance to change the dehydration method of a gas plant (currently: absorption with TEG - tri ethylene glycol) to a gas dehydration with TREG.

If you have any tips for this special case I'll appreciate your help!

Any information will be helpful: cases around the world, suppliers of TREG in the US or Latinamerica, documented technical information, tips!

Thanks for you interest and I hope this could be a nice topic to discuss about!

Have a nice day!

 

[MortenA]

What would be the motivation for using treg? Opex capex? Teg is fairly cheap not very toxic losses are minor etc?

 

[JhoQuiVi]

The goal of using TREG is besides dehydrating the natural gas feed is also take the natural gas condensates inside the contactor, that's why we want to have some extra information about TREG or any information about cases of gas plants that have already achieved this goal using TREG or using another method

Thanks!

 

[dcasto]

here is my suggestion, get the condensates out before the contactor. I don't care what you use (well almost) but condensates will ruin the TREG inside a few weeks.

 

[MortenA]

I think MeOH would be a more obvious choise here - procenat has some patent in this ares already (the IFPEXOL process). It has, however, never gained that much interest, maybe due to the conservatism of the industry, maybe because traditional adsorption just works well?