Synthesis and Catalytic Performance of Ni/Silica Pillared Clay on HDPE Plastic Hydrocracking to Produce Liquid Hydrocarbons as Fuel

محورهای موضوعی : Iranian Journal of Catalysis

Darwanta Darwanta ¹ , Wega Trisunaryanti ² , Karna Wijaya ³ , Suryo Purwono ⁴

1 - Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia|Department of Chemistry, Faculty of Mathematics and Natural Sciences, Cenderawasih University, Jayapura, Indonesia
2 - Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia
3 - Department of Chemistry, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia
4 - Department of Chemical Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia

تاریخ دریافت : 1401/11/17 تاریخ پذیرش : 1402/04/08 تاریخ انتشار : 1402/03/11

کلید واژه: Pillared clay, Plastic waste, silica pillars, HDPE hydrocracking, Ni catalyst,

چکیده مقاله :

Synthesis of Ni/SiPILC (Silica Pillared Clay) catalyst based on light fraction clay for hydrocracking of High-density Polyethylene (HDPE) plastics into liquid fuels has been carried out. The SiPILC was synthesized using CTAB and TEOS by varying the TEOS/clay mole ratio. The Ni metal was impregnated on the SiPILC with a variation of 2, 4, 6, and 8 wt% of Ni. Hydrocracking of HDPE plastic was carried out using catalysts in a semi-batch stainless steel reactor. The liquid cracking product was analyzed using GC-MS. The results showed that the clay consisted of Montmorillonite, Cristoballite, and Quartz minerals. The highest specific surface area of 571 m2/g was showed by the SiPILC treated by TEOS/clay mole ratio of 60. Ni 2%/SiPILC achieved the best performance catalyst with the highest acidity of 1.327 mmol/g that produced a liquid fraction of 45.50% (gasoline 55.03 % and diesel 44.96 %) at hydrocracking temperature 450 oC for 1.5 h. The Ni 2% /SiPILC catalyst still performed well after the fifth hydrocracking run, producing a liquid fraction of 41.08 %.

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