Steam Gasification Reactivities of Various Fuel Chars

Steam Gasification of Wood Char and the Effect of Hydrogen Inhibition on the Chemical Kinetics

“…Several studies have focused on the influence of wood type on CO 2 gasification 30,31,32 and steam gasification 2,14,17,20,33,34,35 . A general conclusion is that the ash content, composition and its catalytic properties explain the differences among the fuels.…”

“…Hydrogen is one of the products of steam gasification and its effect on the reaction is also relevant. Some kinetic data for steam gasification of biomass have been published 2,8,9,10,11,12,13,14,15,16,17,18 , but very few considering the effect of H 2 inhibition 19,20,21,41 . The diversity in evaluation of the results from char reactivity experiments is large.…”

Hydrogen production from high temperature steam catalytic gasification of bio-char

“…5 Several researchers have investigated different aspects of bio-char gasification. [4][5][6][7][8][9][10][11][12][13][14] Many studies have focused on oxidation of bio-char using thermogravimetric analysis (TGA). For example Luo et al 6 and Maiti et al 8 studied the kinetics of bio-char using TGA.…”

Analysis of solar‐driven gasification of biochar trickling through an interconnected porous structure

“…27 The pre-exponential factor k 0 , however, varies strongly with the feedstock source, size, and morphology. For the purpose of this study, k 0 was set to 3.3Á10 6 s 21 bar…”

“…and D eff,k,k take into account the molecular diffusion through a porous medium and the dispersion induced by the flow through the porous structure (27) where D m,k is the molecular diffusion coefficient of species k, s is the tortuosity, and D d,? and D d,k are the dispersion coefficients perpendicular and parallel to the main flow direction, respectively.…”