| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 |
11권 2호, p.1578 |
| 발표분야 |
오염 토양 복원에 관한 Workshop |
| 제목 |
Formation of Carbon Black in DC and RF Thermal Plasma Torch Systems |
| 초록 |
Recently, thermal plasmas are promising as new heat sources to produce the special grades of carbon black with a lower emission of CO2 than conventional commercial process. In this presentation, carbon black is formed from methane with the aid of DC and RF induction torches to find the variation of its characteristics and the conversion rate of methane into carbon under the different thermal plasma environment. Firtstly, it is found that carbon black with the special morphology of wrinkled sheet and the high degree of graphitization is mostly obtained when the methane gas is injected into the periphery of DC arc jet. In this periphery, the temperatures drop sharply from arc jet to wall. By the axial introduction of methane gas into the RF plasma along the centerline, however, a large amount of the amorphous carbon black are produced with high conversion rate of methane, where the methane gas is expected to pass relatively uniform temperature fields and have enough time to be decomposed completely. These results indicate that the formation process of carbon black as well as conversion rate of methane into carbon is significantly dependent on the mixing structure and contacting time of methane with thermal plasma streams. |
| 저자 |
서준호1, 최신일2, 남준석2, 이광식1, 주원태1, 홍상희2
|
| 소속 |
1(주)플라즈닉스, 2서울대 |
| 키워드 |
thermal plasma; carbon black; torch; thermal decomposition
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
