تصفح Research Units حسب الموضوع "Calcium carbonate"
السجلات المعروضة 1 -- 5 من 5
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Calcium carbonate particles loaded with triethanolamine and polyethylenimine for enhanced corrosion protection of epoxy coated steel
( Elsevier Ltd , 2020 , Article)Calcium carbonate particles were synthesized and loaded with a mixture of two corrosion inhibitors, triethanolamine (TEA) and polyethylenimine (PEI). These particles can serve as pH-sensitive additives in epoxy coatings ... -
Effect of surface morphology on methane interaction with calcite: a DFT study
( Royal Society of Chemistry , 2020 , Article)Natural gas, consisting primarily of methane, is found in carbonate reservoirs of which calcite is major component. However, the complexity and heterogeneity of carbonate reservoirs remain a major challenge in estimating ... -
Inhibitor loaded calcium carbonate microparticles for corrosion protection of epoxy-coated carbon steel
( Elsevier Ltd , 2019 , Article)pH-sensitive calcium carbonate microparticles were loaded with polyethyleneimine (PEI), a corrosion inhibitor, and used as anti-corrosion additive in epoxy coatings applied on carbon steel. The presence of PEI in the CaCO3 ... -
Paleoproductivity shifts since the last 130 ka off Lakshadweep, Southeastern Arabian Sea
( ELSEVIER , 2021 , Article)Marine sediment deposited on the ocean floor and near coastal areas, the western coastal regions of India provide records of monsoonal shifts and productivity. To understand the paleoproductivity in the northern Indian ... -
Synthesis and evaluation of a novel polyacrylamide functionalized nano-silica as a calcium carbonate inhibitor in upstream applications
( Elsevier B.V. , 2022 , Article)Calcium carbonate scale forms in production and injection wells, precipitating upon pressure and temperature changes, incompatible water mixing, and dehydration. Production shutdown is one of the most dramatic consequences ...