Study of corrosivity of H2S-containing methanol-water mixtures as applied to gas interconnection pipelines from gas processing facilities to gas processing plant at Orenburg field
The results of comparative laboratory studies of corrosivity of acid (i.e. H 2S-containing) fresh and salt waters as well as mineralized methanol-water mixtures of different concentration are given. It was shown that corrosivity of acid methanol-water mixtures does not exceed the corrosivity of acid fresh or salt waters and therefore the estimate of maximum corrosivity of liquids in interconnection pipelines GPF - GPP by corrosivity of acid waters is quite acceptable. Nevertheless selection of corrosion inhibitors for these conditions will be more valid providing that the sufficiently accurate imitation of corrosivity of methanol-water mixture with equilibrium gas-vapor phase is made.