Download e-book for kindle: Corrosion and Degradation of Metallic Materials - by Frans Ropital

By Frans Ropital

ISBN-10: 1621988082

ISBN-13: 9781621988083

ISBN-10: 1933742135

ISBN-13: 9781933742137

Corrosion of metal apparatus has a tremendous impression at the working charges of commercial amenities, the reliability and lifelong of equipments, human protection and the surroundings. This publication presents an replace of the data at the realizing and prevention of the most phenomena inflicting corrosion and degradation of metal fabrics in petroleum and method industries. the 1st part presents an in-depth description of the activities of the most corrosive environments. Eighteen chemical environments and the linked corrosion phenomena are provided intimately. Examples are systematically given to demonstrate the phenomenon defined. the second one part describes many of the options utilized in the petroleum to guard metal fabrics, to observe and to watch corrosion, in a way easily available to non-specialist readers. The 3rd part lists the fundamental ideas required to appreciate the constitution and the habit of the most metal fabrics in addition to a number of the corrosion modes and different attainable assets of damages. The chapters during this part will give you the non-specialist reader with simple info on metallurgy and corrosion. This ebook is meant for engineers and technicians who desire a reference ebook, in addition to fabrics technological know-how and technique engineering scholars or just readers desirous to comprehend the mechanisms enthusiastic about the corrosion of steel fabrics, its prevention and remedy.
Content:
entrance subject
• advent
• Preface
• desk of Contents
1. major Corrosion Phenomena Encountered in Oil and fuel creation, Refining and Petrochemistry Industries: Corrosion Mechanisms and Preventive strategies
2. Prevention of Corrosion and Degradation of metal fabrics utilized in the Petroleum
three. basics on metal Alloys and Corrosion
Annexes
• word list
Index

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Extra info for Corrosion and Degradation of Metallic Materials - Understanding of the Phenomena and Applications in Petroleum and Process Industries

Sample text

Sulfuric acid may be formed in the fumes output from furnaces by reaction of SO2 and SO3 with steam as follows: SO2 + 1/2 O2 SO3 + H 2 0 SO3 H2S04 (in gaseous state above 200 "C). 1). For steels the overall reaction results in dissolution of the iron and formation of iron sulfate according to the equaFeS04 + H2. tion: Fe + H2SO4 Uniform corrosion is observed if the acid covers the entire metallic part, localised corrosion if there is condensation of acid droplets. The main parameters governing corrosion are temperature, acid concentration, the hydrodynamic flow rate and the presence of contaminants and oxidising agents.

The component materials must be selected carefully. Corrosion can be avoided when chemically inert materials, of suitable strength, are available at a price that is competitive compared with that of carbon steel. For example, small diameter polymer pipes can be used for water distribution. Large diameter cement pipes protect unpressurised systems against attack by SRBs. 2 Construction of a non aggressive bacterial environment The ideal non aggressive bacterial environment for a pipe consists of chalk and chalk-sand mixtures.

26 shows the influence of carbon steel composition on the HF corrosion rate. 001% water). The tube on the right part of the weld had copper, chromium and nickel contents far higher than those of the left part [85]. 26 Example of HF corrosion [MI. 4 Prevention of HF corrosion Carbon steel is used for anhydrous or highly concentrated (> 65%) hydrofluoric acid flowing at rates of less than 1 m / s when the temperature is less than 66 “C. 2% [23; 28; 68; 135; 1421. 3). For temperatures greater than 66 “C, the nickel-copper alloy “Alloy 400” is used.

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Corrosion and Degradation of Metallic Materials - Understanding of the Phenomena and Applications in Petroleum and Process Industries by Frans Ropital


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