Articles & Issues

Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

유동층 반응기에서 폐 Polystyrene의 열분해 특성

Pyrolysis Characteristics of Polystyrene Wastes in a Fluidized Bed Reactor

김준식 김사중 윤종성 강용^† 최명재¹

Jun-Sik Kim Sa-Jung Kim Jong-Sung Yun Yong Kang^† Myoung-Jae Choi¹

충남대학교 화학공학과, 대전 305-764 ¹한국화학연구원 화학기술부 환경자원팀, 대전 305-600

Dept. of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea ¹Advanced Chemical Technology Division, KRICT, Daejeon 305-600, Korea

HWAHAK KONGHAK, August 2001, 39(4), 465-469(5), NONE

Download PDF

Abstract

유동층 열분해 반응기에서 일반용 폴리스티렌(GPPS)과 폐 발포 폴리스티렌(EPSW)을 원료로 하여 열분해를 수행하였다. 질소와 모래를 각각 유동화 가스와 층물질로 이용하였다. 열분해 온도(400-650 ℃)와 가스 유속(0.3-0.6 m/s)이 열분해 결과 생성되는 생성오일과 스티렌 단량체의 수율에 대한 영향을 고찰하였다. 오일과 스티렌 단량체의 수율은 온도와 가스 유속의 증가에 따라 최대값을 나타내었고 최대오일 수율과 최대 스티렌 단량체 수율은 시료가 GPPS인 경우 각각 93 wt%(600℃)와 65 wt%(500℃)로 나타났으며 원료 물질이 EPSW인 경우 각각 95 wt%(600℃)와 60 wt%(550℃)로 나타났다. 유동층 여분해 반응기에서 PS의 열분해시 열분해 반응온도는 생성물의 조성에 큰 영향을 보여주었고 유동화 가스 유속은 생성물의 수율 결정에 큰 영향을 나타내었다.

Pyrolysis of polystyrene wastes was investigated in a fluidized bed reactor. The feed materials were GPPS(general purpose polystyrene) and EPSW(expanded polystyrene waste). Nitrogen and silica sand were used as a fluidizing gas and a bed material, respectively. Effects of temperature(400-650 ℃) and gas velocity(0.3-0.6 m/s) on the yields of oil and styrene_x000D_ monomer were determined. It has been found that the yields of oil and styrene monomer exhibited maximum values with increasing pyrolysis temperature or gas velocity in the reactor. The maximum yields of oil and styrene monomer were 93 wt% (600 ℃) and 65 wt%(500 ℃), respectively in the beds of GPPS and 95 wt%(600 ℃) and 60 wt%(550 ℃), respectively in the beds of EPSW. The pyrolysis temperature affected the composition of products for the pyrolysis of PS and the velocity of flu-idization gas affected the determination of product yield in the fluidized bed reactor.

Keywords

Fluidized Bed Monomer Recovery Oil Recovery Polystyrene Waste Pyrolysis

References

Sasse F, Emig G, Chem. Eng. Technol., 21(10), 777 (1998)
Hirose T, Takai Y, Azuma N, Morioka Y, Ueno A, J. Mater. Res., 13, 77 (1998)
Ide S, Ogawa T, Kuroki T, Ikemura T, J. Appl. Polym. Sci., 29, 2561 (1984)
Song HS, Hyun JC, Korean J. Chem. Eng., 16(3), 316 (1999)
Delapuente G, Arandes JM, Sedran UA, Ind. Eng. Chem. Res., 36(11), 4530 (1997)
Kim JS, Lee SB, Lee KW, Choi MJ, Kang Y, Theor. Appl. Chem. Eng., 6, 4337 (2000)
Shun DW, Ghim YS, Cho SH, Son JE, J. Korea Solid Wastes Eng. Soc., 10 (1993)
Liu YR, Qian JL, Wang JQ, Fuel Process. Technol., 63(1), 45 (2000)
Kaminsky W, Kim JS, J. Anal. Appl. Pyrolysis, 51, 127 (1999)
Kim SD, Kang Y, Chem. Eng. Sci., 52(21-22), 3639 (1997)
Kim JS, Woo KJ, Kang Y, Nam CH, Kim SD, J. Chem. Eng. Jpn., 34(2), 185 (2001)
Pinto F, Coast P, Gulyurtlu I, Cabrita I, J. Anal. Appl. Pyrolysis, 51, 57 (1999)
Madras G, McCoy BJ, Catal. Today, 40(4), 321 (1998)
Kim SS, Chun BH, Park CJ, Yoon WL, Kim SH, HWAHAK KONGHAK, 38(5), 732 (2000)