Catalytic Cracking of Polypropylene-Low Density Polyethylene Pyrolysis Oil over Hierarchical H-ZSM-5 Catalyst

Lenny Marlinda, Silvia Dwi Cahyani, Yuli Evrianti, Bagas Rimawan, Rahmi Rahmi

Abstract


The conversion of plastic waste into liquid fuel has become the center of attention by researchers as a way to overcome environmental problems. According to last research, the polypropylene (PP) and low-density polyethylene (LDPE) pyrolysis oil mixture was classified into hydrocarbon range diesel which have the number of carbon atom from C12-C24. Because that, the effect of LDPE/PP pyrolysis oil over hierarchical H-ZSM-5 catalyst on hydrocarbon composition of liquid fuel oil using the catalytic cracking reactor at 200 oC was investigated. Hierarchical H-ZSM-5 catalyst (hH-ZSM-5) was obtained from H-ZSM-5 modified by desilication method using NaOH. Gas chromatography-mass spectrometry showed that the liquid fuel oil from the catalytic cracking of all variations consisted of aliphatic hydrocarbons with some cycloaliphatic compounds. In ratio of 250 mL/0.5 g (oil/catalyst) aromatic hydrocarbon increased from 1.69 area% to 15.58 area% over H-ZSM5 and hH-ZSM-5 respectively. The higher oil quality with shorter hydrocarbon chains in all variations was obtained over hH-ZSM-5 catalyst, namely in the range of C7-C14 or comparable to hydrocarbon range gasoline and kerosene.

Keywords


PP; LDPE; ZSM-5; catalytic cracking; hydrocarbons

References


H. Chen, H. Cheng, F. Zhou, K. Chen, K. Qiao, X. Lu, P. Ouyang, J. Fu, Catalytic fast pyrolysis of rice straw to aromatic compounds over hierarchical HZSM-5 produced by alkali treatment and metal-modification, J. Anal. Appl. Pyrol., 131 (2018) 76-84. https://doi.org/10.1016/j.jaap.2018.02.009.

D.P. Serrano, J. Aguado, J.M. Escola, A. Peral, G. Morales, E. Abella, Synthesis of hierarchical ZSM-5 by silanization and alkoxylation of protozeolitic units, Catal. Today., 168 (1) (2011) 86–95.

https://doi.org/10.1016/j.cattod.2010.12.040.

Z. Zhang, N. Liu, C. An, M. Sun, L. Xu, X. Ma, Y. Zhen, F. Fu, Effect of hierarchical ZSM-5 zeolites on product distribution of low rank coal fast pyrolysis in a fluidized bed, J. Fuel Chem. Technol., 49 (4) (2021) 407-414. https://doi.org/10.1016/S1872-5813(21)60042-7.

S. Sartipi, K. Parashar, M. J. Valero-Romero, V.P. Santos, B. van der Linden, M Makkee, F. Kapteijn, J. Gascon, Hierarchical H-ZSM-5-supported cobalt for the direct synthesis of gasoline-range hydrocarbons from syngas: Advantages, limitations, and mechanistic insight, J. Catal., 305 (2013) 179-190. https://doi.org/10.1016/j.jcat.2013.05.012.

S.D.A. Sharuddin, F. Abnisa., W.M.A.W. Daud, M.K. Aroua, A review on pyrolysis of plastic wastes, Energy Convers. Manag. 115 (2016) 308-326. https://doi.org/10.1016/j.enconman.2016.02.037

D.P. Serrano, J.M. Escola, L. Briones, M. Arroyo, Hydroprocessing of the LDPE thermal cracking oil into transportation fuels over Pd supported on hierarchical ZSM-5 catalyst, Fuel., 206 (2017) 190-198. https://doi.org/10.1016/j.fuel.2017.06.003.

X. Jing, Y. Zhao, H. Wen, Z. Xu, Interactions between Low-Density Polyethylene (LDPE) and Polypropylene (PP) during the Mild Cracking of Polyolefin Mixtures in a Closed-Batch Reactor, Energy Fuels., 27 (10) (2013) 5841–5851. https://doi.org/10.1021/ef401376m.

J.C. Groen, J.C. Jansen, J.A. Moulijn, J.P. Ramirez., Optimal Aluminium-Assisted Mesoporosity Development in MFI Zeolites by Desilication, J. Phys. Chem. B., 108 (2004) 13062-13065. https://doi.org/10.1021/jp047194f.

W. C. Yoo, X. Zhang, M. Tsapatsis, A. Stein, Synthesis of mesoporous ZSM-5 zeolites through desilication and re-assembly processes. Microporous Mesoporous Mater., 149 (1) (2012) 147–157. https://doi.org/10.1016/j.micromeso.2011.08.014.




DOI: http://dx.doi.org/10.12962/j20882033.v35i3.19188

Refbacks

  • There are currently no refbacks.


Creative Commons License

IPTEK Journal of Science and Technology by Lembaga Penelitian dan Pengabdian kepada Masyarakat, ITS is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://iptek.its.ac.id/index.php/jts.