HYDROGEN SULFIDE CORROSION IN PETRO-CHEMICAL INDUSTRY
炼油工业中H_2S的腐蚀

The paper summerizes corrosion behavior of varions matenials in H 2S environments and the occurrence of H 2S corrosion in the petrochemical industry. The mechanisms of hydrogen sulfide corrosion and all sorts of the influence factors (including environments and material etc) on the corrosion are reviewed.Hydrogen sulfide content and temperature have great influence on the corrosion; Hydrogen charged by the corrosion reaction is the main factor of causing sulfide stress corrosion cracking(SSCC); Material hardness,inclusions and band structure greatly reduce resistance to H 2S corrosion cracking. Finally the problems present in the study of H 2S corrosion and the ways preventing and eliminating H 2S corrosion are put forward.