研究了溶剂处理时间、温度等条件对石油沥青球和煤沥青球的收率、氧化破损率及氧化稳定化效果的影响。结果表明：在室温下用烷烃类浸泡沥青球，可以有效地除去沥青球中的萘和轻组份，打通氧气向内扩散的通道，缩小沥青球表面和内部氧化反应程度差别，促进沥青球的快速均匀不熔化；提高溶剂处理温度，容易刻蚀球表面，影响球的外观和强度;较低软化点的石油沥青球比煤沥青球表面更易于刻蚀更难于氧化稳定化。
The coal tar pitch spheres and petroleum spheres were immersed byalkyl hydrocarbon solvent. The infulence of immersion time and temperature on the yield, breakage and stabilization result of pitch sphere were studied. The results showed that small molecules were effectively removed by immersing pitch spheres with alkyl hydrocarbon solvent at room temperature. The path of oxygen diffusion was obtained and the oxidation difference between surface and center of pitch spheres was minimized, so the stabilization speed was accelerated. If pitch spheres were immersed at higher temperature, their surface would be eroded. The coal tar pitch spheres was easy to be stabilized compared with the petroleum pitch spheres when they had similar softening point and naphthalene content.
参考文献
| [1] | 王克温;乔文明;凌立成.沥青球空气氧化不熔化研究[J].炭素技术,1996(02):5-7. |
| [2] | 刘植昌;凌立成;刘朗.添加硫沥青球不熔化机理的研究[J].炭素技术,1998(02):10-13. |
| [3] | 刘植昌;凌立成;刘朗.沥青球在空气中的不熔化及其对炭化收率的影响[A].,1995:127. |
| [4] | 乔文明,王克温,凌立成,刘朗,周承泽,王瑾,郑斌.不熔化沥青球在低速流化床中炭化和活化的初步研究[J].燃料化学学报,1996(04):375-378. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%