摘要
通过元素分析、气相色谱（GC）及热重分析（TG－DTG）等方法，对不熔化添加硫沥青球的炭化过程进行了研究，并且对比了不添加硫沥青球的炭化情况。结果表明：在450～550℃范围内，添加硫沥青球中的硫主要以H2S的形式脱除，同时生成部分COS（400～550℃）及微量的CS2（400℃）。添加硫沥青球的炭化缩聚反应在400℃反应速率最大。
The earbonization mechanism of pitch-based spheres.(PBS) with and/or without sulfur was studied by GC, TG-DTG and elemental analysis. The results indieate that organosulfur species in PBS decomposed during the carbonization process and escaped in forms of H2S in 450-550℃, COS in 400-550℃, and trace amount of CS2 at 400℃. The polymerization reaction rate of carbonization reached its maximum at 400℃.
出处
《炭素技术》
CAS
CSCD
1998年第4期16-18,共3页
Carbon Techniques
关键词
硫沥青球
沥青球
炭化
活性炭
Pitch-based sphere, Sulfur, carbonization
