| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.854 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
CO2 Gasification Rate Analysis of an Indonesian Coal Char at Elevated Pressure |
| 초록 |
The intrinsic reaction kinetics, analyzed from nth order and Langmuir-Hinshelwood reaction rate equations, obtained from PWHR was verified as comparing with TGA. The internal/external effectiveness factor and the extent of surface coverage were applied to study the effects of high pressure(up to 30atm) and temperature(up to 1723K) on char-CO2 gasification. The inhibition effect of CO was studied at elevated CO partial pressure in total 20atm in the chemical reaction and pore diffusion regimes. The results showed that The intrinsic activation energies based on nth order reaction rate equation are 152kJ/mol(obtaine from TGA, 75um char particle ), 150kJ/mol (obtained from TGA, 800 um char particle) and 149.2kJ/mol(obtained from PWHR, 800 um char particle). In the elevated pressure condition, nth order equation at the high temperature(1573K, pore diffusion regime) is the same trend to adsorption control of L-H equation which is lower surface coverage, and one at the low temperature(973K, chemical regime) is the same trend to desorption control which is higher surface coverage. |
| 저자 |
김량균1, 황찬원2, 오택림2, 임 호2, 김철웅3, 전충환2
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| 소속 |
1부산대, 2부산대 기계공학부 Pusan Clean Coal Center, 3GS E&C |
| 키워드 |
Reaction rate; Coal char CO2 gasification
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| E-Mail |
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| 원문파일 |
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