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Effect of high temperature on reduction-controlling reaction rate of…
Effect of high temperature on reduction-controlling reaction rate of agricultural waste chars and coke with steelmaking slag.
INTRODUCTION
- The objective of this study is thus to understand the high temperature effects (1823 K) on the reduction-controlling reaction rate of palm and coconut chars that reacted with steelmaking slag.
- The determination of the reduction-controlling reaction rate is necessary if this waste is used as carbon reducing agents at steelmaking temperature.
- Palm- and coconut-shell agricultural waste could be renewable steel carbon sources by addressing problems in the environment and reducing the emissions of gas.
- Biomass/biochar for its renewable and carbon-neutral properties is used as an energy resource for iron and steel production.
CONCLUSION
- The chars were the potential of carbon materials for iron oxide reduction contained more volatile matters and higher surface area produced more CO approached faster the equilibrium of the carbon solution-loss reaction and Boudouard equilibrium compared to coke.
- The reaction rate of agricultural waste chars was lower than that of coke because lower fixed carbon and lower ash gave less catalytic effect in the reduction reaction.
- The release of H2 during the cracking of the hydrocarbon in chars showed greater oxygen affinity than coke and accelerated the carbon solution-loss reaction.
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