calcium looping
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Juan Jesús Arcenegui Troya ◽  
Virginia Moreno ◽  
Pedro E. Sanchez-Jiménez ◽  
Antonio Perejón ◽  
José Manuel Valverde ◽  

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8167
Forogh Dashtestani ◽  
Mohammad Nusheh ◽  
Vilailuck Siriwongrungson ◽  
Janjira Hongrapipat ◽  
Vlatko Materic ◽  

This study investigated the effect of HCl in biomass gasification producer gas on the CO2 capture efficiency and contaminants removal efficiency by CaO-Fe2O3 based sorbent material in the calcium looping process. Experiments were conducted in a fixed bed reactor to capture CO2 from the producer gas with the combined contaminants of HCl at 200 ppmv, H2S at 230 ppmv, and NH3 at 2300 ppmv. The results show that with presence of HCl in the feeding gas, sorbent reactivity for CO2 capture and contaminants removal was enhanced. The maximum CO2 capture was achieved at carbonation temperatures of 680 °C, with efficiencies of 93%, 92%, and 87%, respectively, for three carbonation-calcination cycles. At this carbonation temperature, the average contaminant removal efficiencies were 92.7% for HCl, 99% for NH3, and 94.7% for H2S. The outlet contaminant concentrations during the calcination process were also examined which is useful for CO2 reuse. The pore structure change of the used sorbent material suggests that the HCl in the feeding gas contributes to high CO2 capture efficiency and contaminants removal simultaneously.

2021 ◽  
Vol 54 ◽  
pp. 101798
Liang Chen ◽  
Wenhao Dai ◽  
Chunbo Wang ◽  
Wenjing Wang ◽  
Edward J. Anthony

Fuel ◽  
2021 ◽  
pp. 122395
Wan Zhang ◽  
Yingjie Li ◽  
Shoubing Chai ◽  
Zirui He ◽  
Chunxiao Zhang ◽  

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