Publisher

ITSITS

Journal IPTEK The Journal for Technology and ScienceIPTEK The Journal for Technology and Science 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 recent research, the polypropylene (PP) and low-density polyethylene (LDPE) pyrolysis oil mixture is classified into hydrocarbon range diesel with carbon numbers ranging from C12-C24. Therefore, the effect of LDPE/PP pyrolysis oil over hierarchical H-ZSM-5 catalyst on hydrocarbon composition of liquid fuel oil using a catalytic cracking reactor at 200 °C was investigated. Hierarchical H-ZSM-5 catalyst (hH-ZSM-5) was obtained from H-ZSM-5 modified by desilication 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. An increase in aromatic hydrocarbon content from 1.69 area% to 15.58 area% was observed over H-ZSM-5 and hH-ZSM-5, respectively, at a ratio of 250 mL/0.5 g (oil/catalyst). Higher oil quality with shorter hydrocarbon chains, comparable to hydrocarbon range gasoline and kerosene (C7-C14), was obtained over the hH-ZSM-5 catalyst.

Conclusion

This study successfully prepared hierarchical ZSM-5 catalysts through desilication with NaOH, demonstrating their influence on the conversion of plastic fuels.The higher acidity of the hierarchical samples contributed to the production of kerosene and diesel.The introduction of suitable mesopores through alkali treatment enhanced the mass transfer of reactants, leading to improved yields.Therefore, the hH-ZSM-5 catalyst showed promising results in producing higher quality oil with shorter hydrocarbon chains.

Future Research

Penelitian lebih lanjut dapat dilakukan untuk mengoptimalkan proses desilikasi pada ZSM-5 dengan variasi konsentrasi NaOH dan suhu untuk menghasilkan katalis dengan struktur mesopori yang lebih terdefinisi dan aktivitas katalitik yang lebih tinggi. Selain itu, studi komparatif perlu dilakukan untuk mengevaluasi kinerja katalis hH-ZSM-5 dengan katalis zeolit lainnya, seperti beta zeolite atau mordenite, dalam mengolah pirolisis minyak plastik menjadi bahan bakar yang lebih berkualitas. Terakhir, penelitian mengenai pengaruh penambahan logam promotor, seperti nikel atau platinum, ke dalam katalis hH-ZSM-5 dapat dilakukan untuk meningkatkan aktivitas katalitik dan selektivitas terhadap produk bahan bakar yang diinginkan, serta untuk memahami mekanisme reaksi yang terjadi selama proses cracking.

References

1. Optimal Aluminum-Assisted Mesoporosity Development in MFI Zeolites by Desilication | The Journal of Physical... pubs.acs.org/doi/10.1021/jp047194fOptimal Aluminum Assisted Mesoporosity Development in MFI Zeolites by Desilication The Journal of Physical pubs acs doi 10 1021 jp047194f
2. Interactions between Low-Density Polyethylene (LDPE) and Polypropylene (PP) during the Mild Cracking... pubs.acs.org/doi/10.1021/ef401376mInteractions between Low Density Polyethylene LDPE and Polypropylene PP during the Mild Cracking pubs acs doi 10 1021 ef401376m

Metadata

File size	1.35 MB
Pages	9
DMCA	Report