The study of reactions influencing the biomass steam gasification process☆

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

“…2). A similar decrease in concentrations of CH4 and lighter hydrocarbons during the steam gasification/reforming of wood biomass was reported by Franco et al [16]. Fig.…”

“…A slight increase in CH4 concentration from 0.74 vol.% at 2 ml h -1 to 2.20 vol.% at 10 ml h -1 was found, most likely due to the methanation reaction [16,25]. A decrease in H2:CH4 ratio from 75.59 at 2 ml h -1 to 28.15 at 10 ml h -1 suggests CH4 formation via methanation reaction.…”

“…Due to the high temperature employed in this study, no other hydrocarbons were detected. Franco et al [16] studied the influence of steam to biomass ratio on gas yield and gas composition from the gasification/reforming of soft wood and hard wood in a fluidized bed reactor at 800 °C. They reported an initial increase in H2 concentration with the increase in steam to biomass ratio from 0.5 to 0.7.…”

“…The influence of process parameters on the biomass/gasification of biomass has been investigated by various researchers [4,5,8,10,16,17] and process operating parameters such as gasification/reforming temperature, steam flow rate and biomass particle size have been investigated. For example, Luo et al [4,5] investigated the influence of gasification/reforming temperature, steam flow rate and particle size in a fixed bed reactor.…”

“…In addition, the introduction of steam leads to reforming of the product tars and consequently, higher gas yield and carbon conversion. Franco et al [16] researched a range of process parameters and different biomass types for the fluidised bed steam gasification process, H2 yield increased as the temperature of the fluidised bed reactor was raised from 700 to 900 °C. Blanco et al [18] investigated the influence of catalyst temperature for the two-stage catalytic steam reforming of biomass in the form of refuse derived fuel.…”