Browse > Article

A Close Examination of Unstability and a Quality Improvement using Anhydrous $Na_2CO_3$ in Waste Plastic's Thermal Pyrolysis Oil  

Seo, Young-Hwa (Department of Environmental Health, Suwon Science College)
Ko, Kwang-Youn (Department of Chemistry, Ajou University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.29, no.12, 2007 , pp. 1371-1380 More about this Journal
Abstract
Study on the instability of waste plastic's thermal pyrolysis oil was carried out for the purpose of improving its quality. The reaction of pyrolysis oil with ozone changed double bonds into aldehydes and ketone, estimated that HDPE pyrolysis oil contained $\sim45$ wt% 1-alkene type olefins, and PP pyrolysis oil did $\sim73$ wt% olefins, which consisted of $\sim47$ wt% secondary and $\sim20$ wt% primary alkenes. The dark brown color and odor of pyrolysis oil were improved by eliminating double bonds, indicated that they were directly related to unsaturated hydrocarbons. Container test showed that metal can affected oil quality worse than the brown glass bottle. Antioxidant added into pyrolysis oil was consumed up to 90% within $2\sim3$ days and the wt. composition of unsaturated hydrocarbons in pyrolysis oil was not changed within 50 days, inferring that instability of pyrolysis oil due to unsaturated bonds can be stabilized by antioxidants. Adsorption test on silica gel, activated carbon and alumina to remove precipitates in oil produced a good result, but not enough to remove moisture. However, cheap anhydrous sodium carbonate showed the best removal efficiency of moisture as well as precipitates in oil. Therefore the pyrolysis oil quality improvement was accomplished by applying anhydrous $Na_2CO_3$ into the production plant.
Keywords
Waste Plastics; Pyrolysis Oil; Quality Improvement; Antioxidant; Ahhydrous Sodium Carbonate;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kaminsky, W., Zorriqueta, I. N., 'Catalytic and thermal pyrolysis of polyolefins,' J. Anal. Appl. Pyrolysis, 79, 368 - 374(2007)   DOI   ScienceOn
2 김영석, 김용상, 정성욱, 김관문, 윤왕래, 김성현, '활성탄을 이용한 폐윤활유의 열분해유증의 타르흡착 특성,' J. Korean Ind. Eng. Chem., 12, pp. 373-376(2001)
3 정상현, 박성제, 홍원석, 김용진, 신완호, 구경희, '폐윤활유속에 포함된 입자상 오염물 제거장치 및 그 방법,' 대한민국특허 10-0417769(2004)
4 Mcmurry, J., Organic Chemistry, 5th ed., Brooks/Cole, CA, pp. 253-255(1999)
5 Ventuo, P. B., Habib, E. T., Fluid Catalytic Cracking with Zeolite Catalysis, Marcel Dekker Inc, New York, pp.98-100(l979)
6 Liu, Y., Hodek, W., and van Heek, K.H., 'Characterization of tar, char and gas from pyroysis of coal asphaitenes,' Fuel, 77, 1099-1105(1998)   DOI   ScienceOn
7 10% 잔유증 잔류탄소분 시험분석 KS M 2017
8 Sodium Carbonate, the Merck Index 13th ed., Merck & CO., Inc., New Jersey, pp. 1537(2001)
9 신대현, 최상근, 서영화, '고분자폐기물로부터 고급연료유 생산공정 실용화 -AA11 산업폐기물재활용기술개발사업연구보고서,' 과학기술부/환경부, pp. 33(2003)
10 물과 침전물 시험 분석 KS MISO 3734
11 Aguado, J., Serrano, D. P., 'Thermal Process,' Feedstock Recycling of Plastic Waste, RSC, Cambridge, UK pp. 73(1999)
12 Lee, K. H., Noh, N. S., Shin, D. H., Seo, Y. H., 'Comparison of Plastic types for Catalytic degradation of Waste Plastics into Liquid products with spent FCC catalyst,' Polym. Degrad. Stab., 78, 539-544(2002)   DOI   ScienceOn
13 Seo, Y. H. and Shin, D. H., 'Determination of Paraffin and Aromatic hydrocarbon type Chemicals in Liquid Distillates Produced from the Pyrolysis Process of Waste Plastics by Isotope-dilution mass spectrometry,' Fuel, 81, 2103-2112(2002)   DOI   ScienceOn
14 Sakata, Y., Uddin, M. A, Muto, A., 'Degradation of polyethylene and polypropylene into fuel oil by using solid and non-acid catalysts,' J. Anal. Appl. Pyrolysis, 51, 135 -155(1999)   DOI   ScienceOn
15 Bruice, P.Y., Organic Chemistry, Prentice Hall, Inc., New Jersey, pp. 499 - 503(2005)
16 김영석, 김용상, 정성욱, 김관문, 윤왕래, 김성현, '폐윤활유 열분해유의 타르생성 및 흡착 특성 연구,' J. Korean Ind. Eng. Chem., 12, 12-15(2001)
17 Osawa, Z., 'Photoinduced degradation of Polymers in Handbook of Polymers Degradation,' Hamid, S.H, Amin M.B. and Maadhaj, A,G,.(Eds), Marcel Dekker, Inc., New York, pp. 169-218(1992)
18 Swasey, C. C., 'Antioxidant in Plastics Additives and Modifers Handbook,' edited by Edenbaum, J., Van Nostrand Reinhold, New York, pp. 193-202(1992)
19 Seo, Y. H., Lee, K. H., Shin, D. H., 'Investigation of Catalytic thermal Reaction of High-Density Polyethylene by Hydrocarbon Group type Analysis,' J. Anal. Appl. Pyrolysis, 70, 383 - 398(2003)   DOI   ScienceOn
20 Lide, David R., Heptadecane in Physical constants of organic compounds, Handbook of Chemistry and Physics, 87th ed., CRC Press, Inc, Florida(2007)
21 정상현, 박성제, 홍원석, 김용진, 구경희, '폐윤활유속에 포함된 수분의 제거 장치 및 그 방법,' 대한민국특허 10-0407161(2003)