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반 회분식 반응기에서 polypropylene의 등온 및 비등온 열분해반응 특성

Isothermal and Non-isothermal Pyrolysis Characteristics of Polypropylene in Stirred Batch Reactor

김승수^† 박찬진¹ 김성현²

Seung-Soo Kim^† Chan Jin Park¹ Sung Hyun Kim²

동해대학교 환경공학과, 동해 240-713 ¹시립인천전문대학 환경공업과, 인천 402-060 ²고려대학교 화학공학과, 서울 136-701

Department of Environmental Engineering, Dong Hae University, 119, Jiheung-dong, Dong Hae, Kangwondo 240-713, Korea ¹Department of Environmental Engineering, Incheon City College, 235, Dohwa-dong, Nam-gu, Inchon 402-060, Korea ²Department of Chemical Engineering, Korea University, 1 5-Ka, Anam-dong, Seongbuk-Ku, Seoul 136-701, Korea

ks7070@dreamwiz.com

HWAHAK KONGHAK, December 2001, 39(6), 757-762(6), NONE

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Abstract

열중량 분석법을 이용하여 반 회분식 반응기에서 승온속도를 0.5, 1.0 및 2.0 ℃/min로 변화시키면서 polypropylene의 열분해반응 속도실험을 수행하였다. 미분법을 이용하여 polypropylene의 열분해 전환율이 1%에서부터 100%일 때까지의 활성화에너지 및 반응차수를 구하였다. 반응이 급격하게 진행되는 구간에서 활성화에너지는 208-288 kJ/mol까지 점진적으로 증가하였으며 반응차수는 0.01이었다. 반 회분식 반응기에서 반응온도를 410-430 ℃로 변화시키면서 60분 동안 열분해반응 실험을 수행한 결과 반응온도가 증가할수록 생성된 열분해 오일의 양은 증가하지만 생성물의 탄소수 분포는 거의 일정하게 나타났으며, 특정한 탄화수소화합물에 대한 선택성은 나타나지 않았다.

Kinetic tests on pyrolysis of polypropylene were carried out by thermo gravimetric technique heating the sample at the rates of 0.5, 1.0, 2.0 ℃/min in a stirred batch reactor. The activation energy and the reaction order were determined at conversions from 1 to 100%. The activation energies increased slowly from 208 kJ/mol to 288 kJ/mol and the reaction order was 0.01. Polypropylene was thermally cracked in a semi-batch reactor at 410-430 ℃ for 60 minutes. As the reaction temperature increased, the yields of product oil increased. However, the selectivity of specific hydrocarbons was not observed.

Keywords

Polypropylene Pyrolysis Thermogravimetric Technique Stirred Batch Reactor Carbon Number Distribution

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