Co-gasification of coal–biomass blended char with CO2 at temperatures of 900–1100 °C

Co-gasification of bituminous coal–pine sawdust blended char with H 2 O at temperatures of 750–850 °C

“…This short communication reports on an experimental study that is an expansion of our previous study (Jeong et al, 2014). In the present study, the coal-biomass blended char was co-gasified with H 2 O.…”

“…It has been reported that a large amount of volatile matter with a high H/C ratio released from biomass affected to increase in calorific value and cold-gas efficiency, since H radical transfer from the biomass to coal and additional decomposition of coal might induce higher product gas yield [2]. In our previous study [3], the coalbiomass blended char was co-gasified with CO 2 and the synergy of the reactivity was reported. The temporal carbon conversion of the blended char could be calculated by an algebraic equation using the carbon conversion from the experiments of individual coal and biomass chars, and the coal-biomass mass ratio.…”

“…The temporal carbon conversion of the blended char could be calculated by an algebraic equation using the carbon conversion from the experiments of individual coal and biomass chars, and the coal-biomass mass ratio. The synergy of the reactivity could be defined since the reactivity from the experiment was greater than the calculated one [1,[3][4][5].…”

Investigation of Co-Gasification Reactivity of Torrefied Jatropha Seed Cake with Illinois #6 Coal Char

“…Figure 5C shows the relation of conversion X and time (t) for the catalysis-controlled model. A linear equation was applied to each curve, and the slope indicated the rate constant, k. All of the rate constants (k) and corresponding regression coefficients (R 2 ) (Jeong et al 2014) of the curves are shown in Table 4. An examination of the plots concluded that the catalysis-controlled model was not the best fit for describing the torrefied biomass and the coal char co-gasification process.…”

Effect of Biomass Char Additives on the Hydrogasification Behavior of a Bituminous Coal

“…So, it is worthy to study biomass utilization. The most efficient way of biomass utilization is co-utilization of coal and biomass including co-pyrolysis (Li et al 2013Quan et al 2014) and co-gasification (Jeong et al 2014;Masnadi et al 2015;Pu et al 2015). It is found that the pyrolysis and gasification process have synergistic effects, which is mainly caused by the catalytic effect of alkali and alkaline earth metal (AAEM) species in the biomass (Brown et al 2000;Krerkkaiwan et al 2013).…”