| 工艺条件对均四甲苯改性沥青性能和组成的影响 |
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| 引用本文： | 智林杰,宋进仁,凌立成,刘朗. 工艺条件对均四甲苯改性沥青性能和组成的影响[J]. 炭素技术, 1999, 0(6): 10-12 |
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| 作者姓名： | 智林杰 宋进仁 凌立成 刘朗 |
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| 作者单位： | 1. 中国科学院山西煤化所,山西太原,030001
2. 中国科学院山西煤化所煤转化国家重点实验室,山西太原,030001 |
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| 摘 要： | 以均四甲苯为添加剂对沥青进行改性，初步考察了工艺条件（ 反应温度、反应时间、添加剂含量、体系压力等）对改性沥青软化点、残炭率及族组成的影响。发现均四甲苯的加入可促进沥青分子的反应，调整沥青的组成和结构分布；通过不同反应条件可控制沥青ＴＳ 组分和ＰＩ 组分以达到沥青组成设计的目的。
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| 关 键 词： | 均四甲苯 添加剂 工艺条件 沥青改性 组成设计 |
INFLUENCE OF PROCESS CONDITIONS ON THE PROPERTIES AND FRACTION COMPOSITION OF DURENE MODIFIED PITCHES |
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| ZHI Lin-jie,SONG Jin-ren,LING Li-cheng,LIU Lang. INFLUENCE OF PROCESS CONDITIONS ON THE PROPERTIES AND FRACTION COMPOSITION OF DURENE MODIFIED PITCHES[J]. Carbon Techniques, 1999, 0(6): 10-12 |
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| Authors: | ZHI Lin-jie SONG Jin-ren LING Li-cheng LIU Lang |
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| Abstract: | Durene was used as an additive to modify pitch properties. Different process conditions, such as reaction time, temperature, pressure and amount of additive used, were investigated to establish their influences on soft points(SP), coke yields(CY) and fraction composition of modified pitches. The results show that the presence of durene helps to promote the reaction between pitch molecules and to adjust the distribution of pitch fraction and structure composition. As such toluene soluble fraction (TS) and pyridine insoluble fraction (PI) can be controlled by varying reaction conditions and the goal aiming at pitch fraction composition design can be reached. |
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| Keywords: | Durene additive processing conditions pitch modification fraction composition design |
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