Utilization of converter off-gas based on a chemical-looping combustion process
Yongjian Wu
Chunhuan Luo
Xiuli Zhang
Xiaoming Zheng
Tanjin Zhu
Qingquan Su
10.6084/m9.figshare.8034071.v1
https://tandf.figshare.com/articles/journal_contribution/Utilization_of_converter_off-gas_based_on_a_chemical-looping_combustion_process/8034071
<p>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/Al<sub>2</sub>O<sub>3</sub> synthesized by an incipient wetness impregnation method were investigated. The results showed that CuO/Al<sub>2</sub>O<sub>3</sub> 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<sup>−1</sup> by elevating the reaction temperature to 350 ℃. Furthermore, carbon deposition from CO and formation of CuAl<sub>2</sub>O<sub>4</sub> did not occur because of the low operating temperature. The proposed process based on CuO/Al<sub>2</sub>O<sub>3</sub> showed a good applicability, with which the safe and clean utilization for the converter off-gas could be realized.</p>
2019-04-24 07:38:53
Chemical-looping combustion
utilization for converter off-gas
cu-based oxygen carrier
redox performances
carbon deposition