| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 | 29권 1호, p.71 |
| 발표분야 | 특별 심포지엄 |
| 제목 | New approach estimating apparent kinetic parameters of pyrolysis reaction : Peak Property Method |
| 초록 | This paper addresses the Peak Property Method (PPM) which can concurrently estimate three kinetic parameters (activation energy, pre-exponential factor, and reaction order) of pyrolysis reaction from single derivative thermogravimetry (DTG) curve. A key assumption of the PPM is that a specific combination of three peak properties (peak temperature, peak height, and conversion at peak temperature) of a DTG curve would represent a unique thermal reaction. Theoretical relationships between the peak properties and the kinetic parameters were derived and its validity was checked by means of applying to estimation of pyrolysis kinetics of low density polyethylene (LDPE). The results were compared with those derived from the typical analysis methods of pyrolysis kinetics: differential (Chatterjee-Conrad), difference-differential (Freeman-Carroll), and integral method (Coats-Redfern). The average values of n, E, and lnA, respectively, at the three linear heating rates of 5, 10, and 20 K/min were determined to be 0.42±0.04, 159.38±9.00 kJ/mol, and 24.84±1.78 (A: min-1) within a confidence interval of 95%. The PPM duplicates the experimental DTG curve the most excellently among various kinetic analysis methods. Consequently, it would be expected that the PPM would be one of the good analytical tools estimating the three kinetic parameters (n, E, and A) concurrently, provided that the conversion function would be accounted for by power law equation |
| 저자 | 김승도1, 신대현2, 이경환2, 서영화3 |
| 소속 | 1한림대, 2한국에너지기술(연), 3수원과학대 |
| 키워드 | pyrolysis kinetics; Peak Property Method; LDPE |
