%0 Journal Article %A Wu, Yongjian %A Luo, Chunhuan %A Zhang, Xiuli %A Zheng, Xiaoming %A Zhu, Tanjin %A Su, Qingquan %D 2019 %T Utilization of converter off-gas based on a chemical-looping combustion process %U https://tandf.figshare.com/articles/journal_contribution/Utilization_of_converter_off-gas_based_on_a_chemical-looping_combustion_process/8034071 %R 10.6084/m9.figshare.8034071.v1 %2 https://tandf.figshare.com/ndownloader/files/14964173 %K Chemical-looping combustion %K utilization for converter off-gas %K cu-based oxygen carrier %K redox performances %K carbon deposition %X

A chemical-looping combustion process based on a single fixed bed reactor for utilizing steelmaking converter off-gas, which is intermittently discharged and has a low and greatly fluctuating heat value, has been presented. Based on this process, the redox performances of CuO/Al2O3 synthesized by an incipient wetness impregnation method were investigated. The results showed that CuO/Al2O3 exhibited high reactivity, and for a complete CO conversion through the discharging period, the gas hourly space velocity (GHSV) of the reduction reaction could be raised up to 8000 h−1 by elevating the reaction temperature to 350 ℃. Furthermore, carbon deposition from CO and formation of CuAl2O4 did not occur because of the low operating temperature. The proposed process based on CuO/Al2O3 showed a good applicability, with which the safe and clean utilization for the converter off-gas could be realized.

%I Taylor & Francis