Title: The generation and influencing factors of spontaneous combustion of iron sulfide under aerobic condition
Abstract: The active sulfur in oil has a corrosive effect on the device,exploring the generation and influencing factors of spontaneous combustion of iron sulfide under the aerobic conditions has a great significance to prevent accidents caused by spontaneous combustion of iron sulfide. Experiment takes iron oxide as the main raw material to react with hydrogen sulfide gas under the condition that oxygen concentration is 21% to prepare the iron sulfide and investigates the effects of ambient temperature,storage time and storage conditions for curing hot products on spontaneous combustion of iron sulfide. The results show that the process of generating the iron sulfide under aerobic conditions is a process that oxidation and vulcanization taking place at the same time and when the sample temperature rising amplitude is bigger,generating capacity of elemental sulfur will be higher; The higher the ambient temperature is,the more obvious the resulting iron sulfide oxidation temperature is rising; Storage time has considerable influences to spontaneous combustion of iron sulfide and elemental sulfur reacts with Fe S to form higher spontaneous combustion polysulfide during storage; The better thermal storage condition is,the more easily to lead to the accumulation of heat,which exacerbates the exothermic oxidation of iron sulfide.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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