Corrosion of Carbon-Steel Alloy in 0.1M Nitric Acid in Presence of Plastic Waste as Corrosion Inhibitors

Abstract

Recyclization of poly (ethyleneterphthalate), (PET), with Diethanolamine and Triethanolamine having 1:2 wt% of PET: wt% of DEA or wt% TEA, in presence of manganese acetate as a catalyst. The inhibition action of the prepared compounds (D2 & T2) on the corrosion of carbonsteel which used in the manufacture of petroleum pipelines in nitric acid was evaluated, at different concentrations of inhibitors from (50-250 ppm) at different temperatures, ranged from (303-333 K). The polarization curves indicate that these compounds may act as mixed-type inhibitors. The adsorption of the prepared compounds on C-steel was found to follow the Langmuir adsorption isotherm,they also obey El-Awady isotherm. The values of activation energies (Ea*) and all thermodynamic activation parameters which determined, indicating that the type of adsorption was chemical adsorption.

Manufacturing of Corrosion Inhibitors and Flow Improvers from Recycling of Waste at Hail City, Saudi Arabia: Physicochemical and Electrochemical Studies on Steel in Petroleum Industries

“…The used technique is solvent-free effective and environmentally friendly. The prepared compound was characterized using FT-IR, 1 HNMR, and elemental analysis. The product PETAA was evaluated as a corrosion inhibitor for SABIC carbon steel used in the petroleum industry in 3.5% NaCl as artificial seawater.…”

“…With the increase of civil civilization, the daily production of plastic materials increases, as well as the daily consumption of plastic materials, which may result in the accumulation of plastic waste on a daily basis. Plastic bottle production in the world exceeds 200 million tons per year, accounting for approximately 19% of total solid waste accumulated in the environment. − Many researchers have worked hard to convert solid and plastic waste into useful chemicals for industrial purposes. − Plastic waste was recycled, and its products were used as flow improvers for local petroleum raw materials and as metal corrosion inhibitors in the petroleum industry. Metal corrosion in the petroleum industry is a constant problem that occurs in oil depots, pipelines, boilers, and tankers due to the fact that the raw materials and petroleum products contain corrosive ions such as sulfates, chlorides, and nitrates in addition to containing a percentage of water that is often mixed with petroleum crude.…”

“…The use of plastic waste and its modified derivatives as corrosion inhibitors can be traced back to 2006 when Reda Abdel-Hameed and colleagues created a water-soluble surfactant derived from plastic waste. − ,− This surfactant was evaluated as a corrosion inhibitor for C-steel in 1 M hydrochloric acid corrosive media, − and Abdel-Hameed’s works have attracted the attention of other scientists to this crucial research area. In the previous work, the corrosion inhibition of carbon steel (SABIC steel) used in the petroleum industry was studied using a silver nanomaterial and an expired medicinal drug inhibitor system .…”

“…SAPIC iron protection was performed recently, 2022, using tryptophan and histidine acting as a mixed inhibitor due to their adsorption on the iron surface, obeying the Langmuir isotherm model . A series of reported works aimed to reduce environmental pollution by converting plastic waste into useful products, as well as to assess the inhibition action of plastic waste on the corrosion of some steel alloys in various aqueous media. − The use of plastic waste as corrosion inhibitors includes the synthesis of new compounds with new structural properties from PET in order to improve their efficiencies in the field of corrosion protection of steel. A surfactant inhibitor derived from waste has numerous advantages, including high inhibition efficiency, low cost, low toxicity, availability, renewability, and ease of production. − R. S. Abdel-Hameed reviewed the scientific efforts in the field of using plastic waste as green corrosion inhibitors toward metals in 2016 when he collected and summarized his studies and other scientist’s studies in a review article published in the Indian Journal of Materials Science .…”

“…A series of reported works aimed to reduce environmental pollution by converting plastic waste into useful products, as well as to assess the inhibition action of plastic waste on the corrosion of some steel alloys in various aqueous media. − The use of plastic waste as corrosion inhibitors includes the synthesis of new compounds with new structural properties from PET in order to improve their efficiencies in the field of corrosion protection of steel. A surfactant inhibitor derived from waste has numerous advantages, including high inhibition efficiency, low cost, low toxicity, availability, renewability, and ease of production. − R. S. Abdel-Hameed reviewed the scientific efforts in the field of using plastic waste as green corrosion inhibitors toward metals in 2016 when he collected and summarized his studies and other scientist’s studies in a review article published in the Indian Journal of Materials Science . Atta et al, 2007, studied the corrosion inhibition effect of two oligomers derived from the glycolysis products of poly­(ethylene terephthalate) (PET) with diethanol and triethanol amines, which was measured from weight loss and electrochemical polarization techniques.…”