This paper presents several case histories where ductile iron pipeline sections have been investigated to ascertain the corrosioncontrol benefits of polyethylene encasement. Investigative procedures, included cell-to-cell potential surveys, side-drain technique measurements, in-situ and laboratory soil tests, pipe-to-soil potential measurements and excavation inspections.
The corrosivity of four mercaptans and selected crude oil fractions were measured in lab tests. Conclusion: Mercaptan corrosion can contribute significantly to the total sulfur related corrosion in the temperature range 235–300°C, which agrees with observations of elevated temperature corrosion in refinery distillation equipment.
The use of glutaraldehyde for decontamination and preservation of water systems involves important considerations relevant to its ecotoxicity profile, biodegradation properties and safe handling and storage guidelines. This paper will review data from ecotoxicity studies, in addition to biodegradability characteristics
An advanced grade of super-austenitic stainless steel with a reduced content of nickel offers a significant economic advantage over nickel-base CRA’s. As the alloy is readily fabricated by conventional techniques, it is an excellent candidate for a variety of applications in the chemical, petrochemical, mining, oil and gas, and refining industries.
Each element & molecule has its own typical natural oscillation. The aim is to influence the original oscillation of the element through in such a way that ultimately the physical properties of the element or of the molecule are modified in the water. The results are rust molecules disintegrate in an unstable form and are washed out.