CO2 conversion to CO by fluidized bed biomass gasification: Analysis of operational parameters

CO2 conversion to CO by fluidized bed biomass gasification: Analysis of operational parameters

Blog Article

Thermochemical conversion of CO2 with biomass to CO in fluidized bed gasifiers is promising for a sustainable carbon economy.Knowledge about this process is expanded by investigating experimental parameters influencing CO2 conversion in such a system and combining them to demonstrate effective conversion.Wood char and CO2 are fed to a lab-scale gasifier in 53 semi-continuous experiments.Six experimental parameters are varied: temperature, bed material type, initial bed-to-fuel ratio, initial fuel loading in the reactor, feed CO2 Classic Cap flow rate, and fuel particle size.The results are compiled in a semi-empirical model based on reaction kinetics.

High temperatures and high fuel-gas contact times are favorable for increasing CO2 conversion, with the latter achieved through high initial fuel loadings in the reactor and low feed gas flow rates.Choosing olivine instead Lacrosse - Sticks - Heads of silica sand as a bed material also results in higher CO2 conversions.The highest CO2 conversion demonstrated in this paper is 86.1%.This experiment produces a gas with 82.

75% CO, 10.01% H2, and 5.90% CO2 (nitrogen-free and dry).