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폴리스틸렌 열분해반응에서 분자량 변화의 영향
Effect of Variation of Molecular Weight for the Pyrolysis of Polystyrene
한국화학연구원 화학기술부 환경자원기술연구팀, 305-600 대전시 유성구 장동 100
Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology, 100 Jang-dong, Yuseong-gu, Daejeon 305-600, Korea
mjchoi@krict.re.kr
HWAHAK KONGHAK, June 2003, 41(3), 377-381(5)
https://doi.org/NONE
https://doi.org/NONE
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Abstract
폴리스티렌의 열분해반응에서 분해반응속도 및 생성되는 오일 중에 함유된 스티렌모노머와 부산물로 얻어지는 에틸벤젠, 알파메틸스티렌, 다이머, 트라이머 등은 반응온도 및 반응시간 등의 여러 가지 변수들에 의해 영향을 받았으며, 반응온도까지 소요되는 시간에 따라 반응성 및 스티렌의 수율은 많은 차이를 보였다. 이 결과는 반응물 주입 시의 용융온도 결정에 중요한 변수가 된다. 폴리스티렌의 열분해에서 온도의 증가와 함께 크랙킹 반응이 스티렌 생성이전에 일어남으로서 반응개시전에 분자량이 크게 감소되었으며 분자량의 감소와 함께 스티렌의 수율은 저하되며 알파메틸스티렌, 에틸벤젠, 벤젠, 톨루엔 등의 부산물의 생성은 증가하였다. 또한 속도론적 연구를 통해 여러 종류의 분자량에 대한 반응성을 비교하였다.
Oil formation rate, composition of crude oil and formation of side products such as α-methyl styrene, ethyl benzene, benzene, toluene, dimer and trimer on thermal degradation of polystyrene were affected by various factors. Especially, melting temperature and melting time gave an important influence on formation of oil and composition of crude oil. Also, composition of formed crude oil showed a siginificant difference on reaction time. These results were caused by changes of average molecular weight of degraded polystyrene. Decrease of molecular weight by cracking gave a decrease of yield of styrene and an increase of formation of α-methyl styrene, ethyl benzene, benzene, toluene. Reaction kinetic study and degradation mechanism to styrene on polystyrene were also briefly discussed.
References
Williams V, Symposium of Waste Plastic Recycle, Tokyo, 21-32 (1993)
Ministry of Science and Technology, "Perspectives in Recycling Technology of Waste Materials," 38-41 (2000)
Shun DW, Han KH, Son JE, Chem. Ind. Technol., 14(4), 371 (1996)
Liebman SA, Levy EJ, "Pyrolysis and GC in Polymer Analysis," MARCEL DEKKER, Inc., 149-154 (1980)
Nishizima H, Sakakibara M, Yoshida K, Nippon Kag. Kaishi, 1989 (1977)
Kim JS, Kim SJ, Yun JS, Kang Y, Choi MJ, HWAHAK KONGHAK, 39(4), 465 (2001)
Shun DW, Ghim YS, Cho SH, Son JE, Korea Solid Wastes Eng. Sci., 10, 195 (1993)
Zhang ZB, Hirose T, Nishio S, Morioka Y, Azuma N, Ueno A, Ohkita H, Okada M, Ind. Eng. Chem. Res., 34(12), 4514 (1995)
Shertukde PV, Marcelin G, Sill GA, Hall WK, J. Catal., 136, 446 (1992)
Connel G, Dumesic JA, J. Catal., 105, 285 (1987)
Jellinek HHG, J. Polym. Sci., 4(1), 13 (1949)
Carniti P, Beltrame PL, Armanda M, Gervasini A, Audisio G, Ind. Eng. Chem. Res., 30(7), 1624 (1991)
Ministry of Science and Technology, "Perspectives in Recycling Technology of Waste Materials," 38-41 (2000)
Shun DW, Han KH, Son JE, Chem. Ind. Technol., 14(4), 371 (1996)
Liebman SA, Levy EJ, "Pyrolysis and GC in Polymer Analysis," MARCEL DEKKER, Inc., 149-154 (1980)
Nishizima H, Sakakibara M, Yoshida K, Nippon Kag. Kaishi, 1989 (1977)
Kim JS, Kim SJ, Yun JS, Kang Y, Choi MJ, HWAHAK KONGHAK, 39(4), 465 (2001)
Shun DW, Ghim YS, Cho SH, Son JE, Korea Solid Wastes Eng. Sci., 10, 195 (1993)
Zhang ZB, Hirose T, Nishio S, Morioka Y, Azuma N, Ueno A, Ohkita H, Okada M, Ind. Eng. Chem. Res., 34(12), 4514 (1995)
Shertukde PV, Marcelin G, Sill GA, Hall WK, J. Catal., 136, 446 (1992)
Connel G, Dumesic JA, J. Catal., 105, 285 (1987)
Jellinek HHG, J. Polym. Sci., 4(1), 13 (1949)
Carniti P, Beltrame PL, Armanda M, Gervasini A, Audisio G, Ind. Eng. Chem. Res., 30(7), 1624 (1991)
