Coldfinger technology applications
Coldfinger technology applications
(OP)
I am a professional for the first time involved in problems with Teg gas dehydration systems. Has anyone had experiences with Coldfinger technology in applications with high Teg concentration, 99% and more ? Any information would be very appreciated.





RE: Coldfinger technology applications
http://www.gasprocessors.com/Globaldocuments/E00Sept_02...
http://www.gpaeurope.com/InBrief?Feb2001.pdf
http://www.tozzisud.com/pdf/Comart.pdf
Good luck.
RE: Coldfinger technology applications
The use of Cold Finger for TEG concentration has been done for several years. The original patent was drafted in 1975 by Laurence Reid in a paper presented at the Gas Conditioning Conference in Norman Oklahoma (now refered to as the Laurence Reid Conference). The process involves concentrating the glycol by installing a trough that helps concentrate the glycol (by removing the water) further shifting the equilibrium. The theorical result would be to concentrate the glycol, hence, you might achieve a lower dewpoint.
True life (reality) has been mixed. In my operations, these have not worked when installed. We will, however, install a Stahl column that can have varying purge gas rates. This design is better and proven.
RE: Coldfinger technology applications
Best regards
Morten
RE: Coldfinger technology applications
Right from the start we had several operating problems like Pressure and Temperature swings. Unit condensed excess glycol along with the water and created a pressure swing the system. Condensed liquids were again routed back to the still column which again created high fuel gas usage.
On the whole i would recomend staying away from these units and investigate into Stripping gas or Sthal columns. Stripping gas technique is waht i am implimenting now to produce 99.96 wt% glycol. Foe an existing dehy unit addition of stripping gas column is more economical than DRIZO or Mole Seive units.
Good luck