期刊
VACUUM
卷 143, 期 -, 页码 386-394出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2017.07.001
关键词
Ferrous sulfide; Synthesis; Characterization; Oxidation behavior; Apparent activation energy
Ferrous sulfide produced by rust sulfuration in crude oil tank can cause accidents such as fire and explosion when exposed to air. It is quite difficult to determine the specific location of the sulfur corrosion products in crude oil tanks as well as to acquire for laboratory testing. Thus, ferrous sulfide with high spontaneous combustion activity is a good alternative for continuing the research of sulfur corrosion products. In this study, pyrophoric active ferrous sulfide sample was synthesized in laboratory. The synthetic sample was studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) combined with energy dispersive spectrometer (EDS), electron probe microanalysis (EPMA) and thermal analysis (TA), respectively. The tests indicated that the synthetic sample was amorphous flocculent agglomerate and the atomic ratio of Fe and S was 1:1 approximately, and the oxidative product was mainly Fe2O3. Non-isothermal calorimetric experiments were conducted with different heating rates. The reaction atmosphere was hypoxic with a 5:95% oxygen:nitrogen gas mix. Apparent activation energy was estimated based on iso-conversional methods. It would benefit for safety on petrochemical industries such as monitoring and early warning of fire and explosion of oil tanks caused by ferrous sulfide with the obtained parameters. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据