Influence of fuel combustion on the corrosion behavior of pipeline steels in fire flooding technology

Abstract

To study the oxidation behavior of a commonly used pipeline materials of 37Mn5 steel in the process of fire flooding technology, a simulation device of organic fuel combustion was designed and used for comparative study between air and kerosene atmosphere. The products generated after kerosene combustion greatly affected the growth of iron oxides at 600 and 700 °C. In air, the oxide scale shows a defective morphology with bulge and spallation. While in the kerosene atmosphere, carbon particles after incomplete combustion can exist on the surface and inside the oxide scale, which would inhibit the reduction of oxides by carbon in substrate and the decarburization of 37Mn5 steel.