Catalytic convertion of Al-MCM-41-ceramic on hidrocarbon (C₈ - C₁₂) liquid fuel synthesis from polypropylene plastic waste

Hydrocarbon liquid fuel (C₈-C₁₂) from poly propylene plastic waste has been successfully synthesized by catalytic conversion using Al-MCM-41 as catalyst. The Al-MCM-41 was characterized using SAXRD. Morphology of Al-MCM-41 surface was analyzed using TEM. The metals content were measured using XPS. The performance of Al-MCM-41 to adsorb and desorb nitrogen was monitored by GSA using BET model. The acidity of Al-MCM-41 was analyzed by FTIR by pyridine absorption method. Al-MCM-41 catalyst was used to convert polypropylene plastic waste in 200 mL catalytic convertion reactor. The Al-MCM-41 catalyst was used for three times and coded as sample A, B, and C. The results showed that sample A, B, and C produce hydrocarbon fraction (C₈-C₁₂) liquid fuel with a composition of 92.76; 91.92; and 90.58%, respectively. The repeated use of the catalyst causes a decrease in the composition of the hydrocarbon fraction (C₈-C₁₂) due to decrease of catalyst performance as observed by a TON (Turn Over Number) value which increased from 0.075%/gram to 0.156%/gram. Based on physical test i.e. boiling point, flash point, density, viscosity, and calorific value, it was proved that hydrocarbon fuels A, B and C have characteristics that in accordance with standard, premium gasoline, as specified in SNI 06-3506- 1994 and HIBER11Z international standards issued by Hibernia Petroleum Canada in 2016.