AI Article Synopsis
- The study investigates how using CO to reduce biomass-oxidized pellets (BOP) and general-oxidized pellets (GOP) functions, highlighting the influence of biomass addition on reduction kinetics.
- Adding 2 wt% biomass increases the pores in oxidized pellets, allowing for better CO absorption and faster reduction.
- The inclusion of biomass not only lowers the activation energy required for reduction but also reduces the overall reduction time by 3%, leading to lower energy consumption and positive environmental impacts.
Article Abstract
In this study, the reduction mechanism of using CO to reduce biomass-oxidized pellets (BOP) and general-oxidized pellets (GOP) was deeply analyzed. The effect of biomass addition on the reduction of oxidized pellets and the change of reduction kinetics were studied. The addition of 2 wt% biomass into pellets increases pores of the oxidized pellets, promotes the rate of CO entering the pellets and the overflow of CO, which results in faster reduction of the oxidized pellets. The reduction reactions of BOP and GOP were controlled by internal diffusion, mixing control and interface control sequentially. Also, addition of the biomass to the pellets decreases the activation energy required for their reduction, from 87.30 to 80.65 kJ·mol. The addition of biomass shortens the reduction time by 3% which can reduce the energy consumption. Therefore, the biomass together with CO enhances the reduction of oxidized pellets and has real environmental benefits.
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| http://dx.doi.org/10.1016/j.biortech.2021.124973 | DOI Listing |
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