Ceramics coating materials for corrosion control of crude oil distillation column: Experimental and theoretical studies

Fadhil, Ahmed A.; Khadom, Anees A.; Fu, Chaoyang; Liu, Hongfang; Mahood, Hameed B.; Mahmoud, Adel K.; Khalaf, Mohammed Zaidan; Karim, Abdul Mun’em A.

doi:10.1016/j.corsci.2019.108220

Cited by 14 publications

(6 citation statements)

References 48 publications

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“…Attractive combination among correct crude blending, corrosion prediction at high risk location, catalytic decarboxylation using copper as catalyst in low temperature process zone, acidic neutralization through chemical injection such as organic amine, ammonia & film forming inhibitors, control of overhead temperature, limited retrofitting & up‐gradation of existing construction material with anticorrosive material (Type 317 L stainless steel or higher Mo alloyed steel 6 or internal Al 2 O 3 ceramic coating 34 ) and inspection/monitoring of high risk location with verification of control methods are the effective strategies to control overhead corrosion. Neutralizer also prevents corrosion due to condensation of weak acids.…”

Section: Resultsmentioning

confidence: 99%

“…Proper optimization is required between overhead corrosion and fouling. The cumulative effects of neutralizing amine and cor-O 3 ceramic coating34 ) and inspection/monitoring of high risk location with verification of control methods are the effective strategies to control overhead corrosion. Neutralizer also prevents corrosion due to condensation of weak acids.…”

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confidence: 99%

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Corrosion prevention of crude and vacuum distillation column overheads in a petroleum refinery: A field monitoring study

Subramanian

2020

Process Safety Progress

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The aim of the present work is to monitor dew point corrosion of crude and vacuum distillation column overhead section in a petroleum refinery. The material of construction of overhead line pipe was carbon steel. The state of art of crude unit process was introduced. The corrosion and associated hydrolyzing mechanisms were briefly described. The crude processing in a petroleum refinery was extremely dynamic and thus field monitoring attempts were made, which provides some useful information on structural integrity of column downstream equipments. The demulsifier, neutralizer, and corrosion inhibitor were mixed in crude unit at specific locations for corrosion prevention. Field monitoring includes evaluation of pH and chloride content of desalter extracted water and overhead condensed water, Base Sediment & Water (BS&W) and chloride content of as-received & desalted crude, and iron content of overhead condensed water. Furthermore, corrosion coupon was installed in overhead section to obtain the actual corrosion rate. All the field study was conducted for a specified period. The acidity, chloride concentration, and iron loss of condensed water confirmed that acidic corrosion was under control. The corrosion rate of the installed coupons confirmed that corrosion rate was within the specified limit. The results revealed in this paper intended for refinery operators and corrosion engineers involved in understanding of actual process parameters in prevention of overhead acidic corrosion. K E Y W O R D Sacidic HCl, aqueous corrosion, crude oil refining, naphthenic acid corrosion, refinery overhead corrosion | INTRODUCTION AND BACKGROUND INFORMATIONCorrosion always occurs in petroleum refining process especially in crude unit which process crude oil that constitutes different boiling point and molecular weight of long chain hydrocarbon. Major impurities in crude oil are chloride salts, sulfur compounds, and carbon-dioxide gases. [1][2][3] The chloride salts could be in form of 75% NaCl, 15% MgCl, and 10% CaCl approximately. Further crude contain various acidic components including organic acids (R[CH 2 ] n COOH, R is cyclopentane or cyclohexane, n > 12) and mineral acids (H 2 S, HCN, & CO 2 ) collectively referred as naphthenic acids, and measured in Total Acidic Number (TAN, mg KOH/g). The main types of corrosion occurs in crude unit of petroleum refinery are naphthenic acid corrosion (NAC), sulfidation, hydrochloric acid (HCl) corrosion, ammonium chloride (NH 4 Cl) corrosion, ammonium bi-sulfide (NH 4 HS) corrosion, polythonic acid stress corrosion cracking (PASCC) and oxidation corrosion (rust formation). 2,[4][5][6] The size and structure of naphthenic acid decides corrosion severity between 180 C and 400 C, which could be operating temperature of heat exchanger, heater tube outlets, transfer lines, distillation column especially at flash zones and reflux lines of crude processing unit. The presence of elemental sulfur, mercaptans (RSH),

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Corrosion prevention of crude and vacuum distillation column overheads in a petroleum refinery: A field monitoring study

Subramanian

2020

Process Safety Progress

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“…Furthermore, the experimental results show that the corrosion rate increased with time to the power n, R is proportional to [10]:…”

Section: Methodsmentioning

confidence: 93%

Modeling and Study Influence of the Temperature Parameter on Corrosion Factors in the Atmospheric Distillation Column of Crude Oil

Fall,

Diop,

Ndiaye

et al. 2023

OJOGas

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Atmospheric distillation is the first step in separating crude oil into by-products. It uses the different boiling temperatures of the components of crude oil to separate them. But crude oil contains a large quantity of acids and corrosive gases, including sulfur compounds, naphthenic acids, carbon dioxide, oxygen, etc. However, the temperature has an important influence on the aggressiveness of the corrosion factors in the atmospheric distillation column. This paper aims to investigate the role of temperature on corrosive products in the atmospheric distillation column. The results of the developed model show that the temperature increases the corrosion rate in the atmospheric distillation column but above a certain temperature value (about 600 K), it decreases. This illustrates the dual role played by temperature in the study of corrosion within the atmospheric distillation column.

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“…The crude oil that is delivered to the refinery may include dissolved inorganic ions such as magnesium and chloride, in addition to other inorganic ions. Desalters are devices that clean crude oil of hazardous inorganics such as corrosion and rust [18]. Desalination of water may be accomplished in two ways: chemically and electrically.…”

Section: The Unit Desalination Of Crude Oilmentioning

confidence: 99%

Corrosion Mechanism and Countermeasures in Oil Refineries - Comprehensive Review

Al_qasaab,

Wafee Hammoud,

Al-Naffakh

2023

Journal of Petroleum Research and Studies

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Due to the international economic growth reliance on petroleum, corrosion is a critical problem for refineries and it has attracted considerable attention in recent times. There is a plethora of knowledge on the prevention of corrosion in petroleum refineries, but it is distributed among several scholarly studies. Therefore, a comprehensive and current analysis of corrosion prevention in refineries is required. Corrosion issues at several refinery units are examined in this paper. In addition, the foundations of the corrosion issue and modern mitigation techniques, like refinery design, cathode safeguard, inhibitors, and covering protection, were investigated. Study concludes by pointing out knowledge gaps, collecting adequate data on refinery facility corrosion, and offering suggestions for future studies.

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Ceramics coating materials for corrosion control of crude oil distillation column: Experimental and theoretical studies

Cited by 14 publications

References 48 publications

Corrosion prevention of crude and vacuum distillation column overheads in a petroleum refinery: A field monitoring study

Corrosion prevention of crude and vacuum distillation column overheads in a petroleum refinery: A field monitoring study

Modeling and Study Influence of the Temperature Parameter on Corrosion Factors in the Atmospheric Distillation Column of Crude Oil

Corrosion Mechanism and Countermeasures in Oil Refineries - Comprehensive Review

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