The study of sunflower seed husks as a fuel in the iron ore sintering process

Ooi, Tze Chean; Aries, Eric; Ewan, B. C. R.; Thompson, D.; Anderson, David R.; Fisher, Raymond; Fray, Trevor A.T.; Tognarelli, D. J.

doi:10.1016/j.mineng.2007.09.005

Cited by 121 publications

(57 citation statements)

References 11 publications

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“…However, when the replacement percentage exceeded 20% or higher, not only sintering index was seriously deteriorated, but also emissions of pollutants were increased. 11,12) CSIRO, 13,15) …”

Section: Introductionmentioning

confidence: 99%

Influence of Surface Modification on Combustion Characteristics of Charcoal and Its Performance on Emissions Reduction in Iron Ore Sintering

Gan

et al. 2017

ISIJ International

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Section: Introductionmentioning

confidence: 99%

Influence of Surface Modification on Combustion Characteristics of Charcoal and Its Performance on Emissions Reduction in Iron Ore Sintering

Gan

et al. 2017

ISIJ International

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“…According to the available studies from around the world, the following types of biomass have been tested in agglomeration process [2][3][4][5][6][7][8]:…”

Section: Introductionmentioning

confidence: 99%

“…Generalized knowledge is introduced about charcoal use from the results of these studies in the following text [2,5,6]:…”

Section: Introductionmentioning

confidence: 99%

Utilization of charcoal in the iron-ore sintering process

2016

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Abstract. Charcoal is becoming an alternative source of energy to traditional fossil fuels such as coal and coke. In theoretical studies, some types of biomass have been identi ed as alternative sources of fuel to coke. The use of charcoal for sintering applications has been evaluated in separate experiments in the world. These experiments indicate that charcoal can replace a portion of the coke breeze (approximately 20-30%). The aim of this thermodynamic study was to evaluate the possibilities of charcoal utilization in iron-ore sintering process. Thermodynamic analysis has shown that the main factors determining the composition and properties of sinter are chemical composition of input materials (including fuels), thermodynamics of fuels burning, and oxidation potential of the gaseous phase (CO2/CO ratio). The main objective of this work was to determine the e ects of coke substitution by charcoal in the laboratory sintering process with respect to combustion e ciency and sinter quality. The coke substitution and energy requirement provided by charcoal was in range of 8 to 86%. The use of charcoal fuel resulted in a decrease in sintering time and the replacement of coke with charcoal may lead to increase in sinter productivity. Overall, the results from the laboratory scale tests suggest that replacement of coke breeze energy with an equivalent amount of energy from charcoal in the iron-ore sintering process is possible and has no negative in uence on technological and ecological parameters.

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“…CSIRO exhibited a great interest in employing charcoal into sintering field, [4][5][6] while Corus mainly put its focus on researching olive residues, sunflower husk pellets ect. 7,8) Both of them indicated that biomass fuels replacing fossil fuels benefited emissions reduction of COx, SOx, NOx etc. However, their findings also indicated that biomass fuels combusted faster than coke, which degraded sinter quality mainly for accelerated sintering speed.…”

Section: Introductionmentioning

confidence: 99%

Preparation Technologies of Straw Char and Its Effect on Pollutants Emission Reduction in Iron Ore Sintering

Fan

Gan

et al. 2014

ISIJ International

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Influences of preparation technologies on properties of straw char (corn) and its use as a supplementary fuel for coke breeze in iron ore sintering were investigated. By means of one-stage carbonisation, produced straw char achieved similar volatile and fixed carbon contents to coke breeze, where recommended carbonisation temperature was 700°C, heating rate was 10-25°C/min, and carbonisation time was 30 min. Two-stage carbonisation, consisting of one low temperature stage and the other high temperature stage, facilitated the further removal of volatile matters, and making straw char increased in yield and fixed carbon content. Recommended one-stage carbonisation benefited reducing combustibility difference between straw char and coke breeze since densified strucuture was achieved. Compared with one-stage carbonisation, two-stage carbonisation made straw char more densified in structure and less difference in combustibility to coke breeze. For straw char prepared from one-stage and two-stage carbonisation, recommended replacement ratio to coke breeze were 20% and 40% respectively. The emission reduction of SOx for replacement ratio 20% and 40% were 10.98% and 38.15% respectively, and that of NOx were 12.67% and 22.53% respectively.

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The study of sunflower seed husks as a fuel in the iron ore sintering process

Cited by 121 publications

References 11 publications

Influence of Surface Modification on Combustion Characteristics of Charcoal and Its Performance on Emissions Reduction in Iron Ore Sintering

Influence of Surface Modification on Combustion Characteristics of Charcoal and Its Performance on Emissions Reduction in Iron Ore Sintering

Utilization of charcoal in the iron-ore sintering process

Preparation Technologies of Straw Char and Its Effect on Pollutants Emission Reduction in Iron Ore Sintering

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