Biocorrosion of stainless steel grade 304L (SS304L) in sugar cane juice

Durmoo, S.; Richard, Caroline; Béranger, G.; Moutia, Y.

doi:10.1016/j.electacta.2008.06.028

Cited by 16 publications

(16 citation statements)

References 3 publications

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“…The evaporators applied in power plants for sugar production are vessels with two boxes of heat exchangers whose function is to evaporate water in the sugar cane juice, which contains 85 % of water. The water content is reduced to 40 % using multiple-effect evaporators.Sugar cane contains water (65-75 wt-%), solids (11-18 wt-%), fibers (8-14 wt-%), organic and inorganic acids, proteins, starch, wax, and dyes [1]. The solids include saccharose, glucose, fructose, and salts.…”

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confidence: 99%

Corrosion Resistance of Steels Used in Alcohol and Sugar Industry

Farias¹,

Lins

2011

Chem. Eng. Technol.

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Evaporators used in power plants for sugar production are vessels with two boxes of heat exchangers. These heat exchangers made of a low-corrosion resistance material are frequently replaced during the alcohol production process. In view of the growing production of cane, sugar, and alcohol, and the corrosion of materials used in power plants, it was necessary to find alternative materials for carbon steel applied in the evaporators. A comparative study of the corrosion resistance of stainless steel as well as unalloyed and alloyed carbon-manganese steels in neutral and acid sugar cane juice electrolytes is presented. The alloyed carbon steels showed the best corrosion behavior in an acid environment compared to a neutral medium. Among the alloyed carbon steels, ASTM T11 and ASTM T22 steels provided the highest corrosion resistance in sugar cane juice. IntroductionThe Brazilian sugar and alcohol industry experienced two great developments in the last decades. The first occurred from 1975 to 1985, associated with the increase in ethanol production, while the second one is related with the increase in sugar production and export since 1995 until today. The evaporators applied in power plants for sugar production are vessels with two boxes of heat exchangers whose function is to evaporate water in the sugar cane juice, which contains 85 % of water. The water content is reduced to 40 % using multiple-effect evaporators.Sugar cane contains water (65-75 wt-%), solids (11-18 wt-%), fibers (8-14 wt-%), organic and inorganic acids, proteins, starch, wax, and dyes [1]. The solids include saccharose, glucose, fructose, and salts. The vapor comprises natural organic acids from sugar cane and other acids produced in the process. The condensed water contains dissolved gases, aldehydes, alcohols, organic acids, and nitrogen compounds. Sugar cane juice is acidic with a pH value of 5.6 at extraction. This acidic property is accounted for by the presence of a variety of acids, namely aconitic, citric, malic, oxalic, glycolic, mesaonic, tartic, succinic, fumaric, and syringic acid in sugar cane juice [1]. In addition to these acids, there are approximately 50 different kinds of microorganisms present in the green cane which are very active. These microorganisms will contribute to a rather quick drop in pH (3.1) of the sugar cane juice once extracted [1]. Moreover, several minerals like water, salt, sulfate, and silica are also present throughout the process and promote surface degradation of equipments in the alcohol industry by a wear mechanism.The steel tubes of evaporators are frequently substituted due to corrosion. The corrosion process increases with higher temperature and acidity. Several researchers studied the corrosion performance of steels in acid and neutral organic media [2][3][4][5][6][7][8][9][10][11]. The inhibitive capabilities of some organic compounds on the electrochemical corrosion of mild and stainless steels in acid and alkaline media were reported [2][3][4][5][6][7][8][9][10][11]. Adsorption of organic comp...

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Corrosion Resistance of Steels Used in Alcohol and Sugar Industry

Farias¹,

Lins

2011

Chem. Eng. Technol.

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“…In general, they have high corrosion resistance, high cryogenic toughness, high work hardening rate, high hot strength, high ductility, high hardness, an attractive appearance and low maintenance. Industrial applications of stainless steels are in chemical reactors and tubing, especially in the food industry [10], in off shore structures and in oil and gas processing installations. Other investigations concern application for H 2 storage tanks and fuel cells for automotive power generation [11] and as structural materials for nuclear fusion reactors [12].…”

Section: Introductionmentioning

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Large strain cyclic behavior of metastable austenic stainless steel

Geijselaers

Hilkhuijsen

Bor

et al. 2015

Materials Science and Engineering: A

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“…Corrosion in sugar factories can arise mainly due to the presence of some acids, impurities in juice and high temperature [5]. Some & G. Bereket gbereket@ogu.edu.tr process parameters such as pH, temperature, dissolved oxygen content, brix and conductivity values of juices also affect the corrosion rate of steel [6][7][8][9]. The aim of performing corrosion tests in equipment is determining the best specifications of the materials, probable service life of the equipment or products, most economical means for reducing corrosion and studying the corrosion mechanism [10].…”

Section: Introductionmentioning

confidence: 99%

Investigation of corrosion resistance of steel used in beet sugar processing juices

ADA

Altanlar²,

Erdem³

et al. 2016

Int J Ind Chem

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In this study, corrosion behaviors of materials used in diffusion units and equipment used in juice clarification steps and tubes in evaporators at Ankara Sugar Factory were investigated in terms of juice production and juice clarification processes as well as juice medium at evaporation stages. The measurements have been performed by comparing steel types used in these units and alternative types of steels that can also be used during the study. For this purpose, pH and Brix (Bx, refractometric dry matter) values of raw juice, thin juice and juice taken from evaporator have been measured during 2009-2010, 2010-2011, and 2011-2012 campaign periods of Ankara Sugar Factory. In addition to these measurements, traditional weight loss and electrochemical tests such as Linear Polarization Resistance (LP), Tafel Extrapolation (TP), Electrochemical Impedance Spectroscopy (EIS) were performed to measure and compare the corrosion rate of the metals used in different juice mediums. The metals included in the study were AISI 316L, AISI 304L grade stainless steel, St 37.2 grade carbon steel and nickel-coated St 37.2. The highest and the lowest corrosion rates were recorded for raw juice and thin juice, respectively. St 37.2 steel had the fastest corrosion rate, whereas the stainless steel AISI 316L has the slowest corrosion rate. However, AISI 316L shows only slightly higher corrosion resistance compared to the corrosion resistance of AISI 304L in different juices. Therefore, AISI 304L steel, which is cheaper than AISI 316L, can be selected as a substation of St 37.2 steel.

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Biocorrosion of stainless steel grade 304L (SS304L) in sugar cane juice

Cited by 16 publications

References 3 publications

Corrosion Resistance of Steels Used in Alcohol and Sugar Industry

Corrosion Resistance of Steels Used in Alcohol and Sugar Industry

Large strain cyclic behavior of metastable austenic stainless steel

Investigation of corrosion resistance of steel used in beet sugar processing juices

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