Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 135, Issue -, Pages 390-396Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2018.08.008
Keywords
Catalytic co-pyrolysis; Yellow poplar; High density polyethylene; Al-MCM-48; Al-MSU-F
Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP
- Ministry of Science, ICT & Future Planning) [2017R1C1B5017885]
- National Research Foundation of Korea [2017R1C1B5017885] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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High density polyethylene (HDPE) was applied as a co-feeding feedstock on the catalytic pyrolysis (CP) of yellow poplar (YP) over mesoporous catalysts, Al-MCM-48 s(SiO2/Al2O3: 23, 80) and Al-MSU-F(SiO2/Al2O3: 82). Compared to the non-catalytic thermogravimetic (TG) analysis of HDPE, catalytic TG analysis of HDPE had much lower decomposition temperatures, 407 degrees C over Al-MCM-48(23), 432 degrees C over Al-MCM-48(80) and 446 degrees C over Al-MSU-F(82). On the other hand, the decomposition temperatures of HDPE increased up to 460 degrees C over Al-MCM-48(23), 482 degrees C over Al-MCM-48(80), and 492 degrees C over Al-MSU-F(82) by applying the mixture of HDPE and YP as a feedstock on the catalytic TG analysis. The experimental yields of aromatic hydrocarbons obtained from the catalytic co-pyrolysis (CCP) of YP and HDPE over mesoporous catalysts were much higher than their theoretical yields. Among mesoporous catalysts, Al-MCM-48(23) produced the larger amount of aromatic hydrocarbons (2.89%) on the CCP of HDPE and YP than those (2.34-2.48%) over Al-MCM-48(80) and Al-MSU-F(82) and also provided the highest synergistic effect on the formation of aromatic hydrocarbons. The higher synergistic effect over Al-MCM-48(20) was achieved by applying the higher YP/HDPE ratio in the feedstock (3/1), higher catalyst/sample ratio (4/1), and higher reaction temperature (600 degrees C).
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