Title

25% SUBSTITUTION OF COKE FOR ELEPHANT GRASS (PENNISETUM PURPUREUM SCHUM) CHARCOAL ON IRON ORE SINTERING PROCESS

25% SUBSTITUTION OF COKE FOR ELEPHANT GRASS (PENNISETUM PURPUREUM SCHUM) CHARCOAL ON IRON ORE SINTERING PROCESS

Authorship

França, Alexandre Bôscaro; Pereira, Jorge Luiz Gonçalves; D’Abreu, José Carlos; Silva, Fabiane Roberta Freitas; Lins, Jefferson Fabrício Cardoso; Rocha, Elisa Pinto; Castro., José Adilson de

França, Alexandre Bôscaro

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Pereira, Jorge Luiz Gonçalves

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D’Abreu, José Carlos

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Silva, Fabiane Roberta Freitas

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Lins, Jefferson Fabrício Cardoso

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Rocha, Elisa Pinto

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Castro., José Adilson de

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DOI

10.5151/2594-357X-22095

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Abstract

Several sources of biomass resources have been used in energy and chemicals industry. The use of biomass to reduce greenhouse emissions is a promising technique due to the short recycling of the carbon in the environment based on photosynthesis natural process. The partial use of elephant grass charcoal (EGC) on iron ore sintering plant is an ecological solution to reduce the consumption of fossil fuels in this process and simultaneously attain the physical and metallurgical properties of the sinter product. The advantage of elephant grass comparing with another biomass source is its high productivity, high mechanization of the plantations and utilization of poor soil (degradated) with small amount of chemical fertilizer. To substitute coke breeze (CB) by EGC it is necessary to use a mass substitution factor (MSF) MEGC:MCB in order to keep thermal energy supply in the process due to its lower calorific value compared with CB. In this experimental study 25% of CB is replaced in the sintering process by EGC using the MSF of 1.45. The results were compared with a standard operation of 100% CB based on the chemo-physical properties of sinter product. The results of the sinter properties obtained in this study on the pilot sinter plant for 25% of EGC were compatible with the standard operation.

Several sources of biomass resources have been used in energy and chemicals industry. The use of biomass to reduce greenhouse emissions is a promising technique due to the short recycling of the carbon in the environment based on photosynthesis natural process. The partial use of elephant grass charcoal (EGC) on iron ore sintering plant is an ecological solution to reduce the consumption of fossil fuels in this process and simultaneously attain the physical and metallurgical properties of the sinter product. The advantage of elephant grass comparing with another biomass source is its high productivity, high mechanization of the plantations and utilization of poor soil (degradated) with small amount of chemical fertilizer. To substitute coke breeze (CB) by EGC it is necessary to use a mass substitution factor (MSF) MEGC:MCB in order to keep thermal energy supply in the process due to its lower calorific value compared with CB. In this experimental study 25% of CB is replaced in the sintering process by EGC using the MSF of 1.45. The results were compared with a standard operation of 100% CB based on the chemo-physical properties of sinter product. The results of the sinter properties obtained in this study on the pilot sinter plant for 25% of EGC were compatible with the standard operation.

Keywords

Elephant-grass; Sinter; Pot-test.

Elephant-grass; Sinter; Pot-test.