Menu
Search
Filters
Close
Menu

97339 Uneven Distribution of Metallic Ions in Deposits Precipitated in the Koshijihara DGA CO2 Removal Units

Picture for 97339 Uneven Distribution of Metallic Ions
Available for download
Product Number: 51300-97339-SG
ISBN: 97339 1997 CP
Author: Y. Tomoe, K. Sato
$0.00
$20.00
$20.00
304 stainless steel has been suffering from general corrosion in CO2 removal units using a high concentration DGA solution in a natural gas processing plant Deposits precipitated in the DGA units were sampled during annual inspections and analyzed for matallic ions and their compounds. It was found that Fe and Cr were rich in the deposits along the lean DGA lines and Ni was rich along the rich DGA lines. Fe and Cr precipitated as oxides and Ni precipitated as sulfides. This uneven distribution of metallic ions in the units wee due to the differences in metal chelate stability with DGA and/or DGA carbamate and also due to the trace amount of H2S in the raw natural gas. There has not been a direct proof of carbamates playing some roles in an actual amine unit, this uneven distribution of metallic ions is one evidence that CGA carbamate really plays some roles in actual DGA units. Keywords: corrosion of 304 stainless steel, diglycolamine, carbon dioxide, deposit, metallic ions, carbamate, chelate, hydrogen sulfide
304 stainless steel has been suffering from general corrosion in CO2 removal units using a high concentration DGA solution in a natural gas processing plant Deposits precipitated in the DGA units were sampled during annual inspections and analyzed for matallic ions and their compounds. It was found that Fe and Cr were rich in the deposits along the lean DGA lines and Ni was rich along the rich DGA lines. Fe and Cr precipitated as oxides and Ni precipitated as sulfides. This uneven distribution of metallic ions in the units wee due to the differences in metal chelate stability with DGA and/or DGA carbamate and also due to the trace amount of H2S in the raw natural gas. There has not been a direct proof of carbamates playing some roles in an actual amine unit, this uneven distribution of metallic ions is one evidence that CGA carbamate really plays some roles in actual DGA units. Keywords: corrosion of 304 stainless steel, diglycolamine, carbon dioxide, deposit, metallic ions, carbamate, chelate, hydrogen sulfide
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 02350 Evaluation of Corrosion Resistance...
Available for download

02350 Evaluation of Corrosion Resistance of Metallic Materials for DGA Regenerators in Dynamic Conditions

Product Number: 51300-02350-SG
ISBN: 02350 2002 CP
Author: Y. Tomoe, K. Miyata, M. Ihara, K. Masuda, and K. D. Efird
$20.00
Picture for 99430 INVESTIGATION OF THE SUSCEPTIBILITY OF
Available for download

99430 INVESTIGATION OF THE SUSCEPTIBILITY OF CONVENTIONAL ASTM A5 16-70 PRESSURE VESSEL STEEL TO HIC AND SOHIC IN H2S-CONTAINING DGA SOLUTIONS

Product Number: 51300-99430-SG
ISBN: 99430 1999 CP
Author: M. A. Al-Anezi, G. S. Frankel, A. K. Agrawal
$20.00
Picture for 00437 MODIFIED CITROSOLV PROCESS FOR PRE-
Available for download

00437 MODIFIED CITROSOLV PROCESS FOR PRE-COMMISSION CLEANING OF NEW DGA PLANTS

Product Number: 51300-00437-SG
ISBN: 00437 2000 CP
Author: Roger S. Sarathy and Abdullah I. A1-Mahrous, Ken Moody
$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