Corrosion and Cathodic Protection Condition for Buried Steel Pipelines Heated by Internal Fluids
スポンサーリンク
概要
- 論文の詳細を見る
It has been widely recognized that buried steel pipelines can be protected effectively by the combined use of protective coatings and cathodic protection.Particular considerations are prerequisite to apply the protective coatings and cathodic protection for buried steel pipelines heated by internal fluid, such as, pipelines of district heating and cooling system, pipelines of gas and petroleum plant, and pipelines transferring crude oil.This paper describes the laboratory studies on the cathodic protection potential and protective current density for buried steel pipelines heated by internal fluids. The studies were performed with soils submerged by water in the temperature range from 40°C to 90°C.At 40°C of the steel surface, a criterion of cathodic protection potentials more negative than -0.85V (Cu/CuSO4) was proposed.In the temperature range from 60°C to 90°C of the steel surface, a criterion of cathodic protection potentials more negative than -0.95V (Cu/CuSO4) was proposed.In the temperature range from 40°C to 60°C, the laboratory study was not performed. However, in this temperature range, a criterion of cathodic protection potentials more negative than -0.95V (Cu/CuSO4) shall be adopted from the safety point of view.
- 社団法人 腐食防食協会の論文
社団法人 腐食防食協会 | 論文
- Resistance of Monel, Nickel and High-Nickel Alloys to Corrosion by Sulfuric Acid
- Renietance of Monel, Nickel and High-Nickel Alloys to Corrosion by Sulfuric Acid
- Resistance of Monel Nickel and High-Nickel Alloys to Corrosion by Sulfuric Acid
- Symposium on Control of Internal Corrosion of Tankers
- タイトル無し