Experimental and thermodynamic study of banana peel non-catalytic gasification characteristics

摘要

The Gasification performance of banana peel was examined in a fixed bed reactor. Effect of temperature, steam to carbon ratio (S/C), drying treatment on syngas composition, gas yield, CO2 selectivity and carbon conversion efficiency (CCE) were investigated. The influence of temperature and S/C on hydrogen production was investigated by thermodynamic analysis. The transient characteristics of banana peel steam gasification were investigated by monitoring the evolutionary behavior of syngas production. An increase in S/C can lead to an increase in the selectivity of CO2, but excess steam (S/C 21.7) causes a decrease in H-2 yield and CCE. The increase of temperature is beneficial to the increase of CCE, but which leads to a decrease in CO2 selectivity. When S/C = 27.1, the effect of temperature on H-2 yield can be divided into CCE control region and CO2 selectivity control region. At temperature 1023 K, H-2 yield is more sensitive to the changes of CCE. While at temperature 1023 K, CO2 selectivity has a more significant effect on H-2 yield. When S/C = 21.7 and temperature is 1023 K, the yield of H-2 produced from the fresh banana peel gasification reaches the maximum value (76.1 ml/g). (C) 2020 Elsevier Ltd. All rights reserved.