Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

090560 Thermodynamic Analysis of the Formation of Black Powder in Sales Gas Pipelines

Picture for 090560 Thermodynamic Analysis of the Formation of Black Powder in Sales Gas Pipelines
Available for download
Product Number: 51300-0090560-SG
ISBN: 090560 2009 CP
Author: Abdelmounam, M. Sherik and Boyd R. Davis
Publication Date: 2009
$0.00
$20.00
$20.00
The product of reactions between steel pipelines and some species in processed natural gas is a significant concern to the gas industry. The corrosion product, which is a mix of iron oxides, sulphides, and carbonates, has several impacts on pipeline operations and must be periodically removed by pigging the pipeline. The difficulty in understanding the mechanisms of formation of this material comes in large part from the non-uniform conditions, such as water dew point, H2S, CO2 and O2 concentrations, in the pipeline.

This paper provides an evaluation of the application of chemical thermodynamics to the formation of this material - what is commonly known in the gas industry as black powder. Given the complex nature of the formation of black powder, it was decided to study the formation and stabilities of various iron phases, namely iron oxides, sulfides and carbonates as well as elemental sulfur in sales gas pipeline environments.

Our findings show that thermodynamics can be a useful tool to indicate what can, and cannot, possibly form under dewing conditions; however, compositional analysis of the powder can assist in directing the calculations. Due to these uncertainties, the results should be used as a guide to better understand the corrosion mechanisms inside the pipeline.

Keywords: black powder, computational thermodynamics, internal corrosion, Sales Gas, moisture content
The product of reactions between steel pipelines and some species in processed natural gas is a significant concern to the gas industry. The corrosion product, which is a mix of iron oxides, sulphides, and carbonates, has several impacts on pipeline operations and must be periodically removed by pigging the pipeline. The difficulty in understanding the mechanisms of formation of this material comes in large part from the non-uniform conditions, such as water dew point, H2S, CO2 and O2 concentrations, in the pipeline.

This paper provides an evaluation of the application of chemical thermodynamics to the formation of this material - what is commonly known in the gas industry as black powder. Given the complex nature of the formation of black powder, it was decided to study the formation and stabilities of various iron phases, namely iron oxides, sulfides and carbonates as well as elemental sulfur in sales gas pipeline environments.

Our findings show that thermodynamics can be a useful tool to indicate what can, and cannot, possibly form under dewing conditions; however, compositional analysis of the powder can assist in directing the calculations. Due to these uncertainties, the results should be used as a guide to better understand the corrosion mechanisms inside the pipeline.

Keywords: black powder, computational thermodynamics, internal corrosion, Sales Gas, moisture content
Product tags
Also Purchased
Picture for 11088 Analyses of Black Powder in Natural Gas Pipeline
Available for download

11088 Analyses of Black Powder in Natural Gas Pipeline

Product Number: 51300-11088-SG
ISBN: 11088 2011 CP
Author: Junya Yamada, Katsuyoshi Nakayama and Hidenori Kaneta
Publication Date: 2011
$20.00
Picture for 08415 Black Powder in Gas Transmission Systems
Available for download

08415 Black Powder in Gas Transmission Systems

Product Number: 51300-08415-SG
ISBN: 08415 2008 CP
Author: Abdelmounam M. Sherik, Syed R. Zaidi, Eduardo V. Tuzan, and Jaime P. Perez
Publication Date: 2008
$20.00
Picture for Black Powder Formation by Dewing and Hygroscopic Corrosion Processes
Available for download

Black Powder Formation by Dewing and Hygroscopic Corrosion Processes

Product Number: 51317--9029-SG
ISBN: 9029 2017 CP
Author: Martin Colahan
Publication Date: 2017
$20.00

Black powder production is poorly understood.  Steel specimens were systematically exposed to a range of CO2, H2S, and O2 partial pressures at differing water condensation rates. Hygroscopic material assisting black powder formation was also investigated.
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