1. Introduction. Inhibition of corrosion of metals represents a major challenge in the industry. The main concern is to retard the extensive corrosion of …

The liner structure in nuclear power plants provides containment for the operation and therefore the study of its durability and integrity during its service life is an important issue. There are several causes for the deterioration of the liner, which in general involve corrosion due to its metallic nature. ... The measurement of the corrosion ...

In this section, we are going to examine different kinds of partial cathodic processes specific to the nitric acid media found in reprocessing plants. These partial cathodic processes mainly determine the corrosion potential of the steel and thus impose the type and the rate of corrosion of the steel as shown in Fig. 19.2.

Waterside Corrosion of Zirconium Alloys in Nuclear Power Plants. IAEA-TECDOC -996. English IAEA-TECDOC-996. 316 pages ¦ € 15.00 ¦ Date published: 1998. Download PDF (21.81 )

The plant extracts compiled in this work obtained corrosion inhibition efficiencies above 60%, most of them around 80–90%. The effect of concentration, extraction solvent, temperature, and...

A commercial corrosion inhibitor (PO-600) used in desalination plant acid cleaning was purchased from PRIO desalination company (Shandong, China), which is a yellowish transparent solution of organic molecules with phosphoric acid, polycarboxylic acid, sulfonate copolymersand surfactans as the main components. 2.2. Synthesis of CG …

1. Introduction. Corrosion is one of the main causes of failure risks in refining and petrochemical equipment. Most refining and petrochemical plant operations involve a large number of equipment and piping, and a variety of process mediums which include flammable hydrocarbon streams, highly toxic gases and strong acids or caustics.

A summary of plant-based green corrosion inhibitors was presented in this review. It has been shown that these substances can be an excellent option for replacing the traditional toxic, harmful, and expensive corrosion inhibitors. Plant extracts are of …

Three of the basic and most observed crystal struc-tures are shown in. Figure 1, namely: face-centred cubic (FCC), body-centred cubic (BCC) and hexagonal close-packed (HCP). Upon cooling from a melt during the production of a metal or alloy, individual crystals nucleate and coalesce as the material solidifies.

The effect of extract of cannabis plant on the corrosion of zinc in aqueous 0.5M sulphuric acid was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. EIS measurements showed that the dissolution process of zinc occurs under activation control. Potentiodynamic polarization curves …

The crude oil processing plants are subjected to the corrosion process, the phenomenon being the most common in the atmospheric distillation plant [].Corrosion was also found in the gasoline and diesel hydrofining plant and in the heat exchangers related to the crude oil processing area [9,10,11,12].The analysis of the integrity of the distillation …

ABSTRACT . Gas Treating Units are an integral part of gas processing plant's operation. An amine used as a solvent to absorb hydrogen sulfide (H2S) and carbon dioxide (CO2) from sour gas. More than two decades of our operational experience demonstrated that the metallurgy selected at the initial design performed satisfactorily …

Typical food processing plant maintenance departments must constantly battle the effects of corrosion on metals in the plant, especially because of the necessary food quality requirements. These food quality requirements lead most plants to select stainless steel as a material of choice. Assuming that the stainless steel consumption and cost in ...

Plant extracts are one green alternative to comme rcial corrosion inhibitors. Corrosion inhibitors are frequently made from plant extracts such as bark, leaf, fruit, peel, seed, root, flower, and ...

Due to the high-temperature boiler corrosion induced by chloride-rich fly ash deposits, steam generation in today's Waste-to-Energy (WtE) plants is typically designed only for 40 bar/400 °C as an economic compromise between acceptable corrosion rate and maximum power generation. The high-corrosive metal chlorides in the fly ash can react …

The results revealed that all the plant extract act as inhibitors in the acid environments while Elizabeth leaf (Chromolena odaratum) proved to be better corrosion inhibitor than Okazi plant ...

In this review, we analyzed the corrosion problem in the industrial sector, why plant-extracted inhibitors are a viable alternative to other options, how plant …

CORROSION INHIBITION OF MILD STEEL USING DELONIX REGIA PLANT EXTRACT IBANGA, IKOABASI JOSHUA REG NO: 20101714895 A PROJECT REPORT SUBMITTED TO THE DEPARTMENT OF CHEMISTRY, SCHOOL OF SCIENCE, FEDERAL UNIVERSITY OF TECHNOLOGY, OWERRI IN PARTIAL FULFILMENT OF THE …

The Degassed Cation Conductivity System consists of the DCC1000, an M800 transmitter and an integrated flow sensor which are designed to reduce corrosion in power plants. DCC1000 offers precise detection of corrosive contaminants as well as CO2, which can elevate conductivity measurements and mask the level of other impurities.

Copper alloys. These alloys are mainly found in condenser tubes and balance of plant heat exchangers. Copper alloys have good corrosion resistance, together with a very high heat transfer coefficient. • Ti is used in the condenser tubes of seashore plants. Ti is very seawater corrosion resistant and has very high mechanical properties.

Corrosion of Zirconium Alloys in Nuclear Power Plants. IAEA-TECDOC -684. English IAEA-TECDOC-684. 180 pages ¦ € 15.00 ¦ Date published: 1993. Download PDF (21.41 )

In addition to natural corrosion resistance, FRP allows for easier maintenance, repairs, and is a lower cost material solution. The clear advantages of FRP have made FRP the standard material solution for all types of storage and handling equipment in the H 2 SO 4 processing industry. Tags: Corrosion Resistance, Sulfuric …

Several leakages were detected in a desalinated water (DSW) line in a petrochemical plant made from ASTM A106. The piping had been in service for only a few months. Samples of water were taken for laboratory investigations. Electrical resistance, pH, alkalinity, total hardness, sulfide, and chloride concentration of samples were measured …

CSP plants will accelerate the corrosion of structural materials, e.g., Fe-Cr-Ni based alloys [9,23-30 ] . The detrimental effects of residual moisture and oxygen in chloride salts and the

An overview is provided of corrosion and materials issues related to the three main carbon capture processes (Post-combustion, Pre-combustion (IGCC) and Oxy-fuel). Some specific corrosion issues and problems are discussed. Areas where potential problems exist or where further studies are required are highlighted. Previous article in …

Reports regarding the utilisation of plant extracts in corrosion inhibition keep 205 increasing every year as shown in Figure 5. The increasing number of publications proves that this 206 topic is indeed important in order to find a better solution for corrosion problems by utilising plant 207 extract-based corrosion inhibitor.

The sign and magnitude of Eo cell for the corrosion process (Equation 17.5.1) indicate that there is a strong driving force for the oxidation of iron by O 2 under standard conditions (1 M H + ). Under neutral conditions, the …

To prevent oxygen ingress and corrosion, the Terry Bundy combined-cycle plant relies on four of the best techniques: nitrogen blanketing; periodic water circulation; dissolved oxygen removal from makeup condensate and demineralized water; and warm air recirculation to protect the low-pressure turbine. Figure 2.

The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated. Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studied.The macro and micro morphology of failed tube in service for 3.5 years were observed by laser scanning …

Research highlights High-temperature corrosion in the superheater of a large-scale waste-to-energy plant was investigated. Nickel-/iron-based alloys and austenitic stainless steel probes were placed in the furnace, some with an aluminide coating. Aluminide coatings is a promising technique for minimising superheater corrosion.

The advancement of research in the area of real time and accurate prediction models, collection of sufficient data regarding ammonium bisulfide (NH 4 HS) corrosion in the refinery plant, development of novel smart nanomaterials coating, and environmentally friendly high temperature corrosion inhibitors are needed for effective mitigation of ...

54 Citations. 10 Altmetric. Metrics. Abstract. The use of corrosion inhibitors is a cost-effective corrosion mitigation strategy for carbon steel. There is an increased …

• A corrosion audit for identification of all corrosion control requirements. • A comprehensive plan to mitigate internal and external corrosion on all plant assets – both above ground and underground. • Turnkey application of all corrosion control systems. • Monitoring and maintenance of corrosion control systems during the

Corrosion inhibition of mild steel in 2 M HCl and 1 M H 2 SO 4 by extracts of selected plants was investigated using a gasometric technique at temperatures of 30 and 60 °C. The studied plants materials include leaf extracts Occimum viridis (OV), Telferia occidentalis (TO), Azadirachta indica (AI) and Hibiscus sabdariffa (HS) as well as …

Corrosion issues in power plants prolongs maintenance, increases operating costs, reduces efficiency and poses safety risks to workers. To optimize power-generating equipment, corrosion prevention is vital. This means ensuring the successful installation of insulation and protective coatings on items that are susceptible to corrosion.