Menu
Search
Filters
Close
Menu

51316-7891-Effect of Monoethylene Glycol on Sweet Top-of-Line Corrosion

Picture for Effect of Monoethylene Glycol on Sweet Top-of-Line Corrosion
Available for download
Product Number: 51316-7891-SG
ISBN: 7891 2016 CP
Author: Fernando Farelas
Publication Date: 2016
$0.00
$20.00
$20.00
Monoethylene glycol (MEG) is a widely used hydrate inhibitor in wet gas pipelines that also can decrease the corrosion rate. Therefore it is important to determine the amount of MEG present at the top of the line. This work present a mechanistic water/MEG co-condensation model in the presence of a noncondensing gas (CO2) that could be used to predict the condensation rate and MEG concentration in the condensing phase. The model predictions were compared with loop test results showing good agreement. The results showed that the increase of the MEG content at the bottom of the line decreased the total condensation rate and increased the MEG content of condensing phase at the top of the line. However this effect is visible only when the MEG content is higher than 70-80 wt.% at the bottom. Long term corrosion experiment are also presented showing that the injection of 50 wt.% and 70 wt.% MEG at the bottom have a minimum effect on both general and localized corrosion resistance. On the other hand 90 wt.% MEG decreased the top of the line corrosion rate significantly due to a decrease in condensation rate and increase of MEG in the condensing phase.
Monoethylene glycol (MEG) is a widely used hydrate inhibitor in wet gas pipelines that also can decrease the corrosion rate. Therefore it is important to determine the amount of MEG present at the top of the line. This work present a mechanistic water/MEG co-condensation model in the presence of a noncondensing gas (CO2) that could be used to predict the condensation rate and MEG concentration in the condensing phase. The model predictions were compared with loop test results showing good agreement. The results showed that the increase of the MEG content at the bottom of the line decreased the total condensation rate and increased the MEG content of condensing phase at the top of the line. However this effect is visible only when the MEG content is higher than 70-80 wt.% at the bottom. Long term corrosion experiment are also presented showing that the injection of 50 wt.% and 70 wt.% MEG at the bottom have a minimum effect on both general and localized corrosion resistance. On the other hand 90 wt.% MEG decreased the top of the line corrosion rate significantly due to a decrease in condensation rate and increase of MEG in the condensing phase.
Product tags
Also Purchased
Picture for 10188 Effect of Triethylene Glycol on Corrosion of Carbon Steel in H2S, CO2, and O2 Environments
Available for download

10188 Effect of Triethylene Glycol on Corrosion of Carbon Steel in H2S, CO2, and O2 Environments

Product Number: 51300-10188-SG
ISBN: 10188 2010 CP
Author: A.M. Sherik, A.L. Lewis, A.H. Rasheed, and A.A. Jabran
Publication Date: 2010
$20.00

Periodic cleaning of sales gas lines often yields large quantities of material known as black powder. This paper describes a research study that was conducted to provide estimates for corrosion rates of carbon steel in TEG-water mixtures with TEG content in the range 0.0 wt% to 99.5 wt%.
Picture for 00498 CORROSION OF CARBON STEELS IN MONOETHYLENE
Available for download

00498 CORROSION OF CARBON STEELS IN MONOETHYLENE GLYCOL

Product Number: 51300-00498-SG
ISBN: 00498 2000 CP
Author: J.J. Gonzfilez, M.E. Afonso, G. Pellegrino
$20.00
Picture for 98221 WHY DOES GLYCOL INHIBIT CO2
Available for download

98221 WHY DOES GLYCOL INHIBIT CO2 CORROSION?

Product Number: 51300-98221-SG
ISBN: 98221 1998 CP
Author: Egil Gulbrandsen, Jean-Herve Morard
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support