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[求助]
翻譯求租
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| 以萃取后的FCC油漿(FCCE)和煤瀝青為原料通過共炭化反應制備針狀焦，考察了原料配比、共炭化時間、熱聚合溫度、壓力和時間對成焦的影響。結(jié)果表明，原料中煤瀝青比例的增加能提高芳香族化合物的含量，共炭化反應能降低原料的縮合程度，促進了針狀纖維結(jié)構(gòu)的生成，實驗中煤瀝青與萃取后的FCC油漿(FCCE)以9:1的配比共炭化10h以后的原料制備出的針狀焦有優(yōu)異的流線-針狀結(jié)構(gòu)。適當?shù)膲毫�、溫度和聚合時間能保證中間相小球在低黏度充分的生長、融并成針狀結(jié)構(gòu)。原料在0.7MPa、550℃下聚合12h，得到的針狀焦呈良好的流線型結(jié)構(gòu)。 |
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【答案】應助回帖
| Preparation of needle coke as raw materials after the extraction of the FCC slurry oil (FCCE) and coal tar pitch through a total of carbonization reaction to study the ratio of raw materials, a total of carbonization time, thermal polymerization temperature, pressure and time into focus. The results showed that the raw material increase in the proportion of coal tar pitch can improve the content of aromatic compounds, a total of carbonization reaction can reduce the degree of condensation of the raw materials to promote the formation of needle-like fiber structure of the coal tar pitch in the experiment after extraction FCC slurry oil (FCCE the needle coke) prepared from a 9:1 ratio, carbonization 10h excellent flow lines - needle-like structure. Appropriate pressure, temperature and polymerization time to ensure adequate growth of the middle phase of the ball in the low viscosity melt and into needle-like structure. Raw materials 0.7MPa, 550 ° C polymerization 12h, needle Jiaocheng Liang get a good streamlined structure. |
2樓2012-04-26 17:36:47
3樓2012-04-26 18:09:56
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