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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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tin和tic涂层对碳氢燃料裂解结焦的影响
, PP. 1017-1024
Keywords: 化学气相沉积,tin和tic涂层,碳氢燃料,抑焦效果
Abstract:
？采用化学气相沉积（cvd）法，在304型不锈钢管道内壁分别沉积了tin和tic涂层，并采用sem、eds、金相显微镜和热冲击等方法对其进行了性能表征和测试。结果表明，两种涂层均匀致密，tin涂层厚度为7.24μm，tic涂层为11.52μm，且均具有良好的结合强度。为评价涂层抑制结焦效果，选用某碳氢燃料a，采取程序升温法进行超临界裂解实验，当反应管前后压差超过1mpa时停止实验，结果表明，304空白管由于严重结焦，在650℃只运行了180s；而tic和tin涂层管分别在780℃运行了275和1560s。通过压差、产气组成和积炭微观形貌的综合分析表明，tin、tic涂层均呈现出优良的抑焦效果，且tin涂层抑焦效果更优。
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