Ethoxylated fatty diamine as a corrosion inhibitor for pipelines and storage tanks

A method for inhibiting corrosion in a refined hydrocarbon-bearing system, the method comprising:

• introducing a corrosion inhibition composition to the refined hydrocarbon-bearing system,
• wherein the corrosion inhibition composition comprises a carrier fluid and a corrosion inhibitor consisting essentially of a compound represented by Formula (I):
• wherein:
• R1, R2, R3, and R4 are each, independently, a hydrogen or an alkoxy group, and m and n are each, independently integers ranging from 2 to 10, wherein:
• at least one of R1, R2, R3, and R4 is the alkoxy group;
• and
• R5 and R6 are each, independently, a saturated C6-C10 hydrocarbon group or an unsaturated C6-C10 hydrocarbon group, and
• wherein the corrosion inhibition efficiency is at least 80% or above.