油气集输管线微生物腐蚀研究进展

油气集输管线微生物腐蚀研究进展

凌威, 李宏燕, 贺莉莉, 靳龙, 郝洪涛

Research Progress on Microbial Corrosion in Oil and Gas Gathering Pipelines

LING Wei, LI Hongyan, HE Lili, JIN Long, HAO Hongtao

表1 脱氮硫杆菌获得能量的典型生化反应^[95]

Table 1 Typical biochemical reactions of thiobacillus denitrificans for energy access^[95]

Oxidation reaction	ΔG / kJ·mol^-1
(1) H₂S + 0.5O₂ → S⁰ + H₂O	-210.2
(2) 4S⁰ + 3O₂ + 4OH^- → 2S₂O $_{3}^{2 -}$ + 2H₂O	-71.2
(3) 2S⁰ + O₂ + H₂O → S₂O $_{3}^{2 -}$ + 2H⁺	-250.0
(4) S⁰ + 1.5O₂ + H₂O → SO $_{4}^{2 -}$ + 2H⁺	-500.0
(5) 2S₂O $_{3}^{2 -}$ + 0.5O₂ + 2H⁺ → S₄O $_{6}^{2 -}$ + H₂O	-10.9
(6) S₂O $_{3}^{2 -}$ + 2O₂ + H₂O → 2SO $_{4}^{2 -}$ + 2H⁺	-418.7
(7) SO $_{3}^{2 -}$ + 0.5O₂ → SO $_{4}^{2 -}$	-250.0
(8) 5S^2- + 2NO $_{3}^{-}$ + 6H₂O → 5S + N₂ + 12OH^-	-1168.4