Menu
Search
Filters
Close
Menu

Effect Of Salt Concentration On Uniform H2S Corrosion Rate Of Pipeline Steel At 100 Ppm H2S(G) And 20Oc

Effect Of Salt Concentration On Uniform H2S Corrosion Rate Of Pipeline Steel At 100 Ppm H2S(G) And 20Oc
Available for download

Large amounts of water can be produced during extraction of hydrocarbons from underground reservoirs.1 It is well understood that produced waters usually contain high amounts of dissolved salts, up to 28 wt.%.2 In addition to salts, dissolved corrosive gases (CO2 and H2S) are present in produced water, which make the mixture a complex corrosive environment for metallic parts and equipment used throughout the production process. 

Product Number: 51322-17982-SG
Author: Fazlollah Madani Sani, Bruce Brown, Srdjan Nesic
Publication Date: 2022
Industry: Water/Wastewater
$0.00
$20.00
$20.00

Large amounts of water can be produced during the production of hydrocarbons from underground reservoirs. Salts are always dissolved in these produced waters. The concentration of dissolved salts can be as high as 400 g/l. For the first time, the effect of salt concentration on uniform hydrogen sulfide (H2S) corrosion of carbon steel in aqueous solutions is studied. Linear polarization resistance (LPR) and potentiodynamic polarization (PD) experiments were conducted in aqueous solutions at 20oC and pH 5.00 saturated with an H2S/N2 gas mixture with a total pressure of 1 bar and H2S concentration of 100 ppm(v). Two NaCl concentrations were tested: 1 and 20 wt.%. A rotating cylinder electrode with a rotational speed of 1000 rpm was used as the specimen. LPR corrosion rates indicated that H2S corrosion rate decreased with increasing salt concentration. PD results showed that the corrosion process was under mixed control. Increasing salt concentration retarded both the anodic and the cathodic reactions, and thereby, decreased the rate of uniform H2S corrosion. 

Large amounts of water can be produced during the production of hydrocarbons from underground reservoirs. Salts are always dissolved in these produced waters. The concentration of dissolved salts can be as high as 400 g/l. For the first time, the effect of salt concentration on uniform hydrogen sulfide (H2S) corrosion of carbon steel in aqueous solutions is studied. Linear polarization resistance (LPR) and potentiodynamic polarization (PD) experiments were conducted in aqueous solutions at 20oC and pH 5.00 saturated with an H2S/N2 gas mixture with a total pressure of 1 bar and H2S concentration of 100 ppm(v). Two NaCl concentrations were tested: 1 and 20 wt.%. A rotating cylinder electrode with a rotational speed of 1000 rpm was used as the specimen. LPR corrosion rates indicated that H2S corrosion rate decreased with increasing salt concentration. PD results showed that the corrosion process was under mixed control. Increasing salt concentration retarded both the anodic and the cathodic reactions, and thereby, decreased the rate of uniform H2S corrosion. 

Product tags
Also Purchased
Picture for Effect Of Varying H2S Content On High Temperature Corrosion Of Austenitic Alloys In A Pyrolysis Process Of Post-Consumer Plastics
Available for download

Effect Of Varying H2S Content On High Temperature Corrosion Of Austenitic Alloys In A Pyrolysis Process Of Post-Consumer Plastics

Product Number: 51322-17552-SG
Author: Manuela Nimmervoll, Roland Haubner, Gregor Mori, Stefan Hönig
Publication Date: 2022
$20.00

Pyrolysis processes of post-consumer plastics are a promising chemical recycling route and a good alternative to disposal. Nevertheless, these processes are challenging for metallic materials since chlorine containing materials or biological components inside the feedstock can yield HCl and H2S, respectively, during cracking. In combination with high temperatures of the reactor zone metallic construction materials can be attacked by high-temperature corrosion.
Picture for Effect Of Steel Surface Profile Peak Density On Rust Creepage
Available for download

Effect Of Steel Surface Profile Peak Density On Rust Creepage

Product Number: 51322-17584-SG
Author: Russell Draper, Michael Beamish
Publication Date: 2022
$20.00

The spread of disbondment or corrosion from a scribe or holiday in a coating film, for which the terms rust creepage or undercutting are used in this paper is an important mechanism of coating degradation. The mechanism of rust creepage has been well studied by several authors who concur that the mechanism is driven by electrochemical reactions15. The reactions occurring at the discontinuity in the coating (scribe or holiday) involve an anodic reaction in which iron is dissolved. Adjacent to the anodic region, under the coating, a cathodic reaction occurs in which oxygen is reduced to hydroxyl ions.
Picture for Electrochemical Behavior Of Transmission Pipeline Steels In Supercritical Carbon Dioxide
Available for download

Electrochemical Behavior Of Transmission Pipeline Steels In Supercritical Carbon Dioxide

Product Number: 51322-17592-SG
Author: Zineb Belarbi, Lucas Teeter, Richard E. Chinn, Margaret Ziomek- Moroz, Ömer N. Doğan
Publication Date: 2022
$20.00

High-pressure steel pipeline is a common, cost-effective method for transporting CO2 from its point of capture to storage sites1. In pipeline transport systems, CO2 is mostly transported in its liquid or supercritical phase, depending on the operating pressure2,3, which requires compression of CO2 gas to a pressure above 80 bar (Figure 1) and avoid a two-phase flow regime in the steel pipelines. In the USA, the longest CO2 pipelines, which transport more than 40 MtCO2 per year from production point to sites in Texas, where the CO2 is used for enhanced oil recovery (EOR), operate in the “dense phase” mode and at ambient temperature and high pressure.
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