EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Mechanism and Modeling of Galvanic Corrosion Between Mild Steel and Iron Aulfides in Acidic Solutions

Download or read book Mechanism and Modeling of Galvanic Corrosion Between Mild Steel and Iron Aulfides in Acidic Solutions written by Payman Sharifi Abdar and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sour hydrocarbon reservoirs, containing H2S gas, are receiving increasing attention due to the growing demand for energy. Although uniform corrosion is not a significant obstacle for oil and gas companies in sour environments, the major challenge in this field is prevention of localized corrosion that can cause failures in production infrastructure. Formation of different types of iron sulfides as corrosion products has been postulated to be a main culprit for localized attack, due to their wide-ranging physicochemical properties, such as their electrical conductivities. The galvanic coupling between iron sulfides layers and mild steel was shown to be the mechanism associated with the localized attacks in sour environments. However, the mechanism of galvanic coupling between mild steel and iron sulfides has not been understood due to the lack of systematic and parametric studies. The research described herein addresses the galvanic coupling between mild steel and iron sulfide polymorphs to investigate the involved mechanisms. For the first step, the uniform corrosion of mild steel in aqueous H2S solutions was critically reviewed, and the mechanism associated with this system including the involved chemical electrochemical reactions was fully described. Furthermore, the mathematical modeling of uniform corrosion rate of mild steel in H2S environments was also comprehensively reviewed. In addition, some new approaches for the modeling of electrochemical reactions as well as corrosion rate were proposed, and the validity of the proposed models were verified through comparing with experimental data. Next step of the current research focused on the galvanic corrosion between mild steel and iron sulfides using both experimental and modeling investigations. In the experimental section, a systematic study was performed in order to determine the contribution of the influential parameters on the galvanic corrosion between mild steel and iron sulfides. On that account, the effect of several important parameters including iron sulfide type, cathode to anode surface area ratio, and solution’s conductivity was examined. Although the conductivity of solution did not show significant impact on the galvanic corrosion rate in the studied experimental conditions, the type of iron sulfide as well as the cathode to anode surface area ratio notably affected the galvanic coupling process. Specifically, the two types of iron sulfides used here, pyrite and pyrrhotite, were shown to produce different galvanic corrosion due to their different electrochemical behaviors. To further elucidate the mechanism of the impact of iron sulfide type, the cathodic behavior of pyrite and pyrrhotite was systematically studied using rotating disk electrode system. The results revealed that pyrrhotite has significantly higher cathodic current than pyrite. This difference originates from different cathodic reactions occurring at the surface of these iron sulfides. Therefore, the associated cathodic reactions were also proposed in this study. The modeling section started with the proposed model for the cathodic current density of mild steel, pyrite, and pyrrhotite. The mathematical model was based on the proposed cathodic reactions as well as the constants found from experimental investigation. The proposed model was then verified by comparing it to the experimental data obtained in this study. In the final part of the current study, a mathematical model based on the polarization measurements was proposed for the prediction of galvanic corrosion rate between mild steel and iron sulfides. The model was compared with the experimental results at various experimental conditions, and very good agreement was found between experimental and modeling results. To summarize, the current research was ale to reveal some mechanistic aspects of the galvanic coupling between mild steel and iron sulfides. The impact of the influential parameters and the electrochemical characteristic of iron sulfides were revealed. Also, the current research, for the first time, developed a mathematical model for the prediction of cathodic current on iron sulfides and the galvanic corrosion rate between mild steel and iron sulfides.

Book Mechanism and Prediction of Mild Steel Corrosion in Aqueous Solutions Containing Carboxylic Acids  Carbon Dioxide  and Hydrogen Sulfide

Download or read book Mechanism and Prediction of Mild Steel Corrosion in Aqueous Solutions Containing Carboxylic Acids Carbon Dioxide and Hydrogen Sulfide written by Aria Kahyarian and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pipeline corrosion in upstream oil and gas production and transmission facilities is a major design and maintenance concern. Corrosion in such environments is, to the most part, the results of the presence of an aqueous phase containing weak acids such as carboxylic acids, carbonic acid, and hydrogen sulfide. The proper understanding of encountered corrosion processes and reliable predicted corrosion rates are essential for major design decisions relating to material selection, pipe wall thickness allowance and adoption of appropriate maintenance procedures, such as use of corrosion inhibitors and frequency of in-line inspections.

Book Corrosion Mechanisms in Theory and Practice

Download or read book Corrosion Mechanisms in Theory and Practice written by Philippe Marcus and published by CRC Press. This book was released on 2002-07-24 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Called "a useful contribution to the current litereture on corrosion science, engineering, and technology" by Corrosion Review, this book offers real-world applications and problem-solving techniques to reduce the occurrence of pits, cracks, and deterioration in industrial, automotive, marine, and electronic structures. It details the electrochemic

Book Trends in Oil and Gas Corrosion Research and Technologies

Download or read book Trends in Oil and Gas Corrosion Research and Technologies written by A. M. El-Sherik and published by Woodhead Publishing. This book was released on 2017-06-09 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trends in Oil and Gas Corrosion Research and Technologies: Production and Transmission delivers the most up-to-date and highly multidisciplinary reference available to identify emerging developments, fundamental mechanisms and the technologies necessary in one unified source. Starting with a brief explanation on corrosion management that also addresses today’s most challenging issues for oil and gas production and transmission operations, the book dives into the latest advances in microbiology-influenced corrosion and other corrosion threats, such as stress corrosion cracking and hydrogen damage just to name a few. In addition, it covers testing and monitoring techniques, such as molecular microbiology and online monitoring for surface and subsurface facilities, mitigation tools, including coatings, nano-packaged biocides, modeling and prediction, cathodic protection and new steels and non-metallics. Rounding out with an extensive glossary and list of abbreviations, the book equips upstream and midstream corrosion professionals in the oil and gas industry with the most advanced collection of topics and solutions to responsibly help solve today’s oil and gas corrosion challenges. Covers the latest in corrosion mitigation techniques, such as corrosion inhibitors, biocides, non-metallics, coatings, and modeling and prediction Solves knowledge gaps with the most current technology and discoveries on specific corrosion mechanisms, highlighting where future research and industry efforts should be concentrated Achieves practical and balanced understanding with a full spectrum of subjects presented from multiple academic and world-renowned contributors in the industry

Book Metals Abstracts

Download or read book Metals Abstracts written by and published by . This book was released on 1998-04 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Corrosion Problems and Solutions in Oil Refining and Petrochemical Industry

Download or read book Corrosion Problems and Solutions in Oil Refining and Petrochemical Industry written by Alec Groysman and published by Springer. This book was released on 2016-10-24 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses corrosion problems and their solutions at facilities in the oil refining and petrochemical industry, including cooling water and boiler feed water units. Further, it describes and analyzes corrosion control actions, corrosion monitoring, and corrosion management. Corrosion problems are a perennial issue in the oil refining and petrochemical industry, as they lead to a deterioration of the functional properties of metallic equipment and harm the environment – both of which need to be protected for the sake of current and future generations. Accordingly, this book examines and analyzes typical and atypical corrosion failure cases and their prevention at refineries and petrochemical facilities, including problems with: pipelines, tanks, furnaces, distillation columns, absorbers, heat exchangers, and pumps. In addition, it describes naphthenic acid corrosion, stress corrosion cracking, hydrogen damages, sulfidic corrosion, microbiologically induced corrosion, erosion-corrosion, and corrosion fatigue occurring at refinery units. At last, fouling, corrosion and cleaning are discussed in this book.

Book Localized Corrosion

Download or read book Localized Corrosion written by Fumio Hine and published by . This book was released on 1988 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Amine Unit corrosion in Refineries  EFC 46

Download or read book Amine Unit corrosion in Refineries EFC 46 written by J.D. Harston and published by CRC Press. This book was released on 2007-04-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The corrosion of carbon steels in amine units used for gas treatment in refining operations is a major problem for the petrochemical industry. Maximizing amine unit reliability, together with improving throughput, circulation, and treatment capacity, requires more effective ways of measuring and predicting corrosion rates. However, there has been a lack of data on corrosion. This valuable report helps to remedy this lack of information by summarizing findings from over 30 plants. It covers such amine types as Methyl Diethanolamine (MDEA), Diethanolamine (DEA), Monoethanolamine (MEA) and Di-isopropanolamine (DIPA), and makes recommendations on materials and process parameters to maximize amine unit efficiency and reliability.

Book Atmospheric Corrosion

    Book Details:
  • Author : Christofer Leygraf
  • Publisher : John Wiley & Sons
  • Release : 2016-06-07
  • ISBN : 1118762347
  • Pages : 401 pages

Download or read book Atmospheric Corrosion written by Christofer Leygraf and published by John Wiley & Sons. This book was released on 2016-06-07 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: ATMOSPHERIC CORROSION Presents a comprehensive look at atmospheric corrosion, combining expertise in corrosion science and atmospheric chemistry Atmospheric corrosion has been a subject of engineering study, largely empirical, for nearly a century. Scientists came to the field rather later on and had considerable difficulty bringing their arsenal of tools to bear on the problem. Atmospheric corrosion was traditionally studied by specialists in corrosion having little knowledge of atmospheric chemistry, history, or prospects. Atmospheric Corrosion provides a combined approach bringing together experimental corrosion and atmospheric chemistry. The second edition expands on this approach by including environmental aspects of corrosion, atmospheric corrosion modeling, and international corrosion exposure programs. The combination of specialties provides a more comprehensive coverage of the topic. These scientific insights into the corrosion process and its amelioration are the focus of this book. Key topics include the following: Basic principles of atmospheric corrosion chemistry Corrosion mechanisms in controlled and uncontrolled environments Degradation of materials in architectural, transport, and structural applications; electronic devices; and cultural artifacts Protection of existing materials and choosing new ones that resist corrosion Prediction of how and where atmospheric corrosion may evolve in the future Complete with appendices discussing experimental techniques, computer models, and the degradation of specific metals, Atmospheric Corrosion, Second Edition continues to be an invaluable resource for corrosion scientists, corrosion engineers, conservators, environmental scientists, and anyone interested in the theory and application of this evolving field. The book concerns primarily the atmospheric corrosion of metals and is written at a level suitable for advanced undergraduates or beginning graduate students in any of the physical or engineering sciences.

Book Petroleum Abstracts

Download or read book Petroleum Abstracts written by and published by . This book was released on 1993 with total page 1752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fatigue and Corrosion in Metals

Download or read book Fatigue and Corrosion in Metals written by Pietro Paolo Milella and published by Springer Nature. This book was released on with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Analytical and Physical Electrochemistry

Download or read book Analytical and Physical Electrochemistry written by Hubert H. Girault and published by CRC Press. This book was released on 2004-10-25 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of electrochemistry is pertinent to a wide variety of fields, including bioenergetics, environmental sciences, and engineering sciences. In addition, electrochemistry plays a fundamental role in specific applications as diverse as the conversion and storage of energy and the sequencing of DNA. Intended both as a basic course for un

Book Corrosion in the Petrochemical Industry  Second Edition

Download or read book Corrosion in the Petrochemical Industry Second Edition written by and published by ASM International. This book was released on 2015-12-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1994, this second edition of Corrosion in the Petrochemical Industry collects peer-reviewed articles written by experts in the field of corrosion that were specifically chosen for this book because of their relevance to the petrochemical industry. This edition expands coverage of the different forms of corrosion, including the effects of metallurgical variables on the corrosion of several alloys. It discusses protection methods, including discussion of corrosion inhibitors and corrosion resistance of aluminum, magnesium, stainless steels, and nickels. It also includes a section devoted specifically to petroleum and petrochemical industry related issues.

Book Corrosion

Download or read book Corrosion written by and published by . This book was released on 1997-07 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues include special section called Corrosion abstracts.

Book Aerospace Alloys

Download or read book Aerospace Alloys written by Stefano Gialanella and published by Springer Nature. This book was released on 2019-10-30 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an up-to-date overview on the main classes of metallic materials currently used in aeronautical structures and propulsion engines and discusses other materials of potential interest for structural aerospace applications. The coverage encompasses light alloys such as aluminum-, magnesium-, and titanium-based alloys, including titanium aluminides; steels; superalloys; oxide dispersion strengthened alloys; refractory alloys; and related systems such as laminate composites. In each chapter, materials properties and relevant technological aspects, including processing, are presented. Individual chapters focus on coatings for gas turbine engines and hot corrosion of alloys and coatings. Readers will also find consideration of applications in aerospace-related fields. The book takes full account of the impact of energy saving and environmental issues on materials development, reflecting the major shifts that have occurred in the motivations guiding research efforts into the development of new materials systems. Aerospace Alloys will be a valuable reference for graduate students on materials science and engineering courses and will also provide useful information for engineers working in the aerospace, metallurgical, and energy production industries.

Book Corrosion Abstracts

Download or read book Corrosion Abstracts written by and published by . This book was released on 1985 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: