Absorption of Aromatics Compounds (BTEX) in TEG Dehydration Process

[weldsv]

Hi, dear freands!
We are running standart TEG dehydration unit, which design for gas flow 15 MMSCFD of day at pressure 30 bar and gas temperature +25 deg. C. We are using TEG to get water dew point -15 deg. C. After few month of running we get problems with water dew point, which is now is +2 deg. C and we found that 50 % of water from glycol sump tank is aromatic hydrocarbons like benzene, toluene, ethylbenzene, and xylene. Total flow from glycol sump tank is 300 lit/day. 50% is water and 50% is of liquid is hydrocarbons (aromatics) with SG 0.816-0.840. The lean TEG now is 83% by mass so regeneration system does not work properly. This confirms with high water dew point +2 deg. C.
Please if you have any ideas what we can do with this issue

[aseptman]

pl provide some more details like pfd if available