Thermocatalytic cracking of fat from fat boxes with activated red mud / Rachamento termocatalítico de gordura de caixas de gordura com lama vermelha ativa

Romero Moreira de Oliveira, Emerson Cardoso Rodrigues, Dilson Nazareno Pereira Cardoso, Wenderson Gomes dos Santos, Nélio Teixeira Machado

Abstract


In this study, the residual fat from fat boxes from the university restaurant at the Federal University of Pará was used as biomass to produce biofuels by thermocatalytic cracking, using as catalyst the red mud chemically activated with hydrochloric acid solution and thermally at 1000ºC. The cracking process of the residual fat with the activated red mud was carried out at a mass ratio of 10% w/w at a fixed temperature of 550°C and the product generated was collected in a fractionated way by the reaction time at 20, 40, 60 and 80 minutes after the cracking reaction starts. Subsequently, the products were subjected to fractional distillation in a 12-stage vigreux column and the condensed fractions were collected according to the gasoline distillation temperature range (45°C-175°C), kerosene (175°C-235°C), light diesel (235°C-305°C) and heavy diesel (305°C-370°C). Considering the effects of temperature, catalyst ratio and acid solution concentration in the chemical treatment of red mud, the characteristics and compositions of the biofuels produced were systematically investigated by physical-chemical and compositional analyzes. The highest yield obtained was 97.46% at point 4 of the collection, also showing the lowest acid index of gasoline at point 4 with 9.4 mgKOH/g.


Keywords


Cracking, Fat boxes, Biomass, Red mud, Fractional distillation.

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References


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DOI: https://doi.org/10.34117/bjdv6n4-237

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