The term of Cathodic Protection was introduced by Sir Humphrey Davy in the 1820s, while iron and zinc is utilised to protect the copper alloy in sea water. The methodology is further developed in United States in 1940s to protect the thin-walled high pressure buried oil and gas transmission pipeline.
An article to cover sulphide scavenger chemistry in the market
H2S scavengers AcroClear AcroClear® is a acrolein-based H2S scavenger and iron sulfide dissolver, which is both water- and oil-soluble. it was reported to have the capability to penetrate oily coatings on iron sulfide particles, and can clarify black water and rid discharge of surface-sheening iron sulfide solids. The acrolein would not disturb the system pH, therefore, is not corrosive as other acid or THPS treatments.