The Effect of Operating Temperature and Equivalence Ratio in an Entrained Flow Gasification of EFB

Effect of Woody Biomass Gasification Process Conditions on the Composition of the Producer Gas

“…The results of Yahaya et al [41] also agree with the current results, which indicate that increasing the temperature from 700 to 900 • C increased CO and H 2 . Likewise, a study on the gasification of empty fruit bunches by Lau Sze Yii et al [42] showed an overall higher volume percentage of H 2 , CO, and CO 2 at 900 • C compared to those at 700 and 800 • C. The effect of temperature was similar also for household waste studied by Zeng et al [43], where H 2 , CO, and CH 4 gradually increased, while CO 2 decreased as the gasification temperature increased. The yield of gas species depends on the heterogeneous, homogeneous, endothermic, and exothermic chemical reactions that occur in the reduction zone during gasification.…”

“…At temperatures above 850 • C, water-gas (R 2 and R 3 ), Boudouard (R 1 ), and steam-reforming reactions (R 5 ) dominated the gasification process and produced higher amounts of CO and H 2 . Lau Sze Yii et al [42] also had similar observations. Additionally, the water-gas reaction (R 2 ) may have had a more considerable contribution than the Boudouard reaction (R 1 ) for the production of H 2 and CO, as at higher bed temperatures, this reaction (R 2 ) has a faster reaction rate, as also explained by Almeida et al [39].…”

“…The results of Yahaya et al [41] also agree with the current results, which indicate that increasing the temperature from 700 to 900 °C increased CO and H2. Likewise, a study on the gasification of empty fruit bunches by Lau Sze Yii et al [42] showed an overall higher volume percentage of H2, CO, and CO2 at 900 °C compared to those at 700 and 800 °C. The effect of temperature was similar also for household waste studied by Zeng et al [43], where H2, Estonian WB Pine sawdust [33] Pine pellets [32] Pine pellets [33] WB [31] Rice husks [35] WB [30] Woodchips [34] Average…”

“…A general increase in H2, CO, and CH4 concentrations was observed at temperatures of 850 and 950 °C, respectively. Gas concentrations increased at higher temperatures as the products of endothermic reactions (R1, R2, R4, and R5) were favored and the reactants of exothermic reactions (R3, R6) were favored, according to Le Chatelier's principle [42]. It The yield of gas species depends on the heterogeneous, homogeneous, endothermic, and exothermic chemical reactions that occur in the reduction zone during gasification.…”

“…A general increase in H 2 , CO, and CH 4 concentrations was observed at temperatures of 850 and 950 • C, respectively. Gas concentrations increased at higher temperatures as the products of endothermic reactions (R 1 , R 2 , R 4 , and R 5 ) were favored and the reactants of exothermic reactions (R 3 , R 6 ) were favored, according to Le Chatelier's principle [42]. It was found that the higher yield was a result of an increase in the rate of all reactions, especially R 1 -R 3 and R 6 , and an increased degree of thermal cracking at higher temperatures.…”