Synergistic effect on co-gasification reactivity of biomass-petroleum coke blended char

Wei, Juntao; Guo, Qinghua; Gong, Yan; Ding, Lu; Yu, Guangsuo

doi:10.1016/j.biortech.2017.03.010

Cited by 70 publications

(23 citation statements)

References 28 publications

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“…Figure 6 shows TG and DTG as a comparison of experimental and calculated values for iron-loaded samples. (7) and (8).…”

Section: Effect Of Iron On Reactivity Of Char For Co-gasificationmentioning

confidence: 99%

“…Many researchers have also studied the effect of alkali metal and alkaline earth metal (AAEM) in biomass ash on co-gasification [8][9][10]. Wei et al [8] concluded that AAEM in biomass ash, particularly K, can promote gasification and transform from biomass to another feedstock.…”

Section: Introductionmentioning

confidence: 99%

“…Wei et al [8] concluded that AAEM in biomass ash, particularly K, can promote gasification and transform from biomass to another feedstock. Zhang et al [9] performed experimentation on petroleum coke and corn cob co-gasification using thermogravimetric analysis (TGA).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture

Shen

Nakamura

Murakami

2018

Energy Science & Engineering

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This study investigated the steam gasification of Indonesian Adaro coal and Japanese cedar mixed in a 1:1 ratio with the physical addition of 10 wt% Fe 2 O 3 in 50 vol% H 2 O at ambient atmospheric pressure and 800°C for 1 h. The primary objective of this work was to examine the effectiveness of an iron catalyst on the interaction between Indonesian Adaro coal and Japanese cedar. The study demonstrated that the H 2 evolution amount for co-gasification of Japanese cedar and Adaro coal (with 1:1 ratio in weight) without a Fe catalyst was 100 mmol/g-char. However, the H 2 evolution amount for co-gasification with the addition of Fe 2 O 3 was 152 mmol/g-char. The increase in the cogasification for H 2 evolution was based on a change in the char structure during pyrolysis and gasification. 282

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“…Figure 6 shows TG and DTG as a comparison of experimental and calculated values for iron-loaded samples. (7) and (8).…”

Section: Effect Of Iron On Reactivity Of Char For Co-gasificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture

Shen

Nakamura

Murakami

2018

Energy Science & Engineering

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“…Alkali and alkaline earth metals (AAEMs) and transition metals catalyst could promote the gasification rate by changing the physicochemical structure of char, which have also been widely accepted as a common sense (Huang et al 2009). However, the commercially catalytic coal gasification projects were limited by the secondary pollution of catalyst and the expensive costs of industrial catalyst design, manufacture and recovery (Fernandes et al 2017;Wei et al 2017b). Therefore, it is imperative to find a cheap and environment-friendly coal gasification catalyst for the gasification process.…”

Section: Introductionmentioning

confidence: 99%

Influence of different biomass ash additive on anthracite pyrolysis process and char gasification reactivity

Yang

Liu

et al. 2020

Int J Coal Sci Technol

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Catalytic coal gasification technology shows prominent advantages in enhancing coal gasification reactivity and is restrained by the cost of catalyst. Two typical biomass ash additions, corn stalk ash (CSA, high K–Na and low Si) and poplar sawdust ash (PSA, high K–Ca and high Si), were employed to study the influence of biomass ash on pyrolysis process and char gasification reactivity of the typical anthracite. Microstructure characteristics of the char samples were examined by X-ray diffraction (XRD). Based on isothermal char-CO2 gasification experiments, the influence of biomass ash on reactivity of anthracite char was determined using thermogravimetric analyzer. Furthermore, structural parameters were correlated with different reactivity parameters to illustrate the crucial factor on the gasification reactivity varied with char reaction stages. The results indicate that both CSA and PSA additives hinder the growth of adjacent basic structural units in a vertical direction of the carbon structure, and then slow down the graphitization process of the anthracite during pyrolysis. The inhibition effect is more prominent with the increasing of biomass ash. In addition, the gasification reactivity of anthracite char is significantly promoted, which could be mainly attributed to the abundant active AAEM (especially K and Na) contents of biomass ash and a lower graphitization degree of mixed chars. Higher K and Na contents illustrate that the CSA has more remarkable promotion effect on char gasification reactivity than PSA, in accordance with the inhibition effect on the order degree of anthracite char. The stacking layer number could reasonably act as a rough indicator for evaluating the gasification reactivity of the char samples.

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“…Los resultados indicaron un incremento en la composición de CO, H2 y poder calorífico máxima para la mezcla 40/60 de 18%, 16% y 14% respectivamente, se cuantifico un incremento en la conversión de carbono de 95%. (Wei et al, 2017) estudiaron los efectos de la temperatura de gasificación y relaciones de mezcla entre carbón mineral y biomasa empleando análisis termogravimétricos (TGA). Se analizó la morfología de la estructura para explorar sinergias en la reactividad debido a la mezcla.…”

Section: Introductionunclassified

Evaluación Sinérgica de la Gasificación de Biomasa Residual en Mezclas de Maíz y Algodón

Gómez¹,

Camargo²,

Soto³

et al. 2019

Inf. tecnol.

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ResumenSe evaluó el efecto de mezclas (%w) de tusa de residuos de maíz (TM) y cascara de desmote de algodón (CA) sobre el poder calorífico (LHV) y el rendimiento de conversión del carbono. Se realizó un análisis de varianza para comprobar el efecto aislado de la mezcla TM-CA, variando el porcentaje de mezcla entre 100-0, 90-10, 70-30 y 60-40, cambiando el flujo de succión (FS) para mantener el ER entre 0.27-0.35 y temperatura media de 980°C. Se evidenció un efecto sinérgico en el poder calorífico del gas (LHV) para una mezcla TM-CA 90-10, alcanzando un aumento máximo de 22.11% del LHV en comparación a la media global y 26.31% con respecto a la mezcla 100-0 con LHV de 3.8MJ/Nm 3 . Así mismo se alcanzó una mejora en la conversión de carbono de 20.7%. El trabajo muestra que cuando se emplean mezclas de biomasa, se pueden presentar sinergias, debido a complejas interacciones durante la conversión, y es importante desarrollar herramientas de análisis experimentales que permitan identificarlas. Palabras clave: gasificación; biomasa residual; sinergia; tusa de maíz, AbstractThe effect of mixtures (% w) of corncob (TM) and cotton gin trash (CA) over gas calorific value (LHV) and carbon conversion efficiency was evaluated. An analysis of variance was performed to check the isolated effect of the TM-CA mixture, varying the mixing percentage: 100-0, 90-10, 70-30 and 60-40, changing the suction flow (FS) to maintain the ER between 0.27-0.35 and average temperature of 980 °C. A synergistic effect on the calorific value of the gas (LHV) was demonstrated for a TM-CA 90-10 mixture, reaching a maximum increase of 22.11% of the LHV compared to the global average and 26.31% with respect to the 100-0 mixture. with LHV of 3.8MJ / Nm3. An improvement in the carbon conversion of 20.7% was also achieved. The work shows that if mixtures of biomass are used, synergies can occur, due to complex interactions during the conversion, and that it is important to develop experimental analysis tools to identify them.

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Synergistic effect on co-gasification reactivity of biomass-petroleum coke blended char

Cited by 70 publications

References 28 publications

Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture

Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture

Influence of different biomass ash additive on anthracite pyrolysis process and char gasification reactivity

Evaluación Sinérgica de la Gasificación de Biomasa Residual en Mezclas de Maíz y Algodón

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Synergistic effect on co-gasification reactivity of biomass-petroleum coke blended char

Cited by 70 publications

References 28 publications

Effect of Fe2O3 on steam gasification of subbituminous coal/woody biomass mixture

Effect of Fe2O3 on steam gasification of subbituminous coal/woody biomass mixture

Influence of different biomass ash additive on anthracite pyrolysis process and char gasification reactivity

Evaluación Sinérgica de la Gasificación de Biomasa Residual en Mezclas de Maíz y Algodón

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Product

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Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture

Effect of Fe₂O₃ on steam gasification of subbituminous coal/woody biomass mixture