Experimental microwave-assisted air gasification of biomass in fluidized bed reactor

Fu, Wenming; Zhang, Yaning; Cui, Longfei; Liu, Hui; Maqsood, Tarique

doi:10.1016/j.biortech.2022.128378

Cited by 32 publications

(3 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could be attributed to the enhanced wave absorption property and heat exchange effect brought by a sufficient amount of SiC. At the same time, the endothermic reaction was enhanced [47] (Resin → Char + Tar + Syngas, C + CO2 → 2CO), in accordance with the findings of Fu et al [48].…”

Section: Gas Component At Different Sic Loadingsupporting

confidence: 89%

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Zhang,

Song,

Hou

et al. 2024

Processes

Self Cite

View full text Add to dashboard Cite

The rapid expansion of the scale of wind power has led to a wave of efforts to decommission wind turbine blades. The pyrolysis of decommissioned wind turbine blades (DWTBs) is a promising technological solution. Microwave pyrolysis offers the benefits of fast heating rates and uniform heat transfer, making it a widely used method in various heating applications. However, there are few studies on the microwave pyrolysis of DWTBs, and pyrolysis characteristics under different boundary conditions remain unclear. In this paper, we investigate the pyrolysis characteristics of DWTBs by utilizing silicon carbide (SiC) particles as a microwave absorbent. The results demonstrated that, when the microwave heating power increased from 400 W to 600 W, the heating rate and pyrolysis final temperature of the material increased, resulting in a reduction in pyrolysis residual solid yield from 88.30% to 84.40%. At 600 W, pyrolysis gas components included C2H4, CH4, and CO, while the tar components included phenol and toluene. The highest degree of pyrolysis was achieved under the condition of an SiC particle size of 0.85 mm, with better heating performance, and the calorific value of the pyrolysis gas generated was 36.95 MJ/Nm3. The DWTBs did not undergo pyrolysis when SiC was not added. However, when the mass ratio of SiC to DWTBs was 4, the tar yield was 4.7% and the pyrolysis gas yield was 17.0%, resulting in a faster heating rate and the highest degree of pyrolysis. Based on this, an optimal process for the microwave pyrolysis of DWTBs was proposed, providing a reference for its industrial application.

show abstract

Section: Gas Component At Different Sic Loadingsupporting

confidence: 89%

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Zhang,

Song,

Hou

et al. 2024

Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…Fluidized bed technology has a particularly important role in the thermochemical conversion of biomass [18][19][20]. By the carrier gas, the closely arranged solid-phase particles are separated uniformly, significantly reducing the friction between the particles.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Simulation and Experimental Study of Fluidization Characteristics of a Bubbling Fluidized Bed in Biomass Gasification

Gao,

Zhu,

Fang

et al. 2024

Energies

View full text Add to dashboard Cite

Traditional fossil energy sources still dominate the world energy structure. And fully utilizing biomass is a viable approach for energy transition. A bubbling fluidized bed has better heat and mass transfer, while particle agglomeration limits the development of its industrial application. In this paper, two-phase flow characteristics of a bubbling fluidized bed are investigated by combining numerical simulations and fluidized bed gasification experiments. Numerical simulations found that the bed fluidization height reached twice the initial fluidization height at the 0.054 m initial fluidization height with uniform particle distribution. Fluidized bed gasification experiments found that syngas yield increased with increasing temperature. The carbon conversion efficiency reached 79.3% and the effective gas production was 0.64 m3/kg at 850 °C. In addition, when the water vapor concentration reached 15%, the carbon conversion efficiency and effective gas production reached the maximum values of 86.01% and 0.81 m3/kg, respectively.

show abstract

“…Specifically, under conditions of an airflow rate of 600 mL/min and a temperature of 700 • C, the residence time played a critical role in the process: at 30 min, the syngas yield can reach 76.14%. Fu et al [16] carried out a study on microwaveassisted biomass air gasification in a fluidized bed reactor and obtained the optimal reaction conditions for syngas production: a gasification temperature of 900 • C, equivalent ratio of 0.35, and syngas yield of 78.2%. Mao et al [17] carried out microwave-assisted pyrolysis experiments of furfural residue in a continuous spiral reactor and explored the effects of kaolin, CaO, and K 2 CO 3 additives on the yield of pyrolysis gas.…”

Section: Introductionmentioning

confidence: 99%

Changes of C, H, and N Elements of Corn Straw during the Microwave Heating Process

Liu,

Cao,

Zhang

et al. 2023

Self Cite

View full text Add to dashboard Cite

Due to the rapid growth of the global economy, energy consumption has been steadily increasing, leading to increasing issues such as energy shortages and environmental concerns. Biomass energy, a critical renewable energy source, plays a vital role in advancing low-carbon energy development and resource sustainability. In this study, experiments were conducted to study the migration of C, H, and N elements of corn straw during the microwave heating process, and the effects of residence time, heating temperature, and microwave power were also investigated. The results showed that when the temperature rose, both the proportion of C and H elements fluctuated slightly. Specifically, when the temperature rose from 75 °C to 275 °C, there was a 1.02% increase in the proportion of the C element and a 0.25% decrease in the proportion of the H element. Residence time appeared to be a significant factor influencing the changes in C, H, and N elements. For a 40 min residence time, the proportion of the C element increased from 31.77% to 35.36%, while the proportion of the H element decreased from 4.50% to 3.83%. When there was an increase in the microwave power between 160 W and 200 W, higher temperatures were reached in the samples, leading to the carbonization process of corn straw being more complete. Consequently, the proportion of the C element rose with extended residence time, whereas the proportion of the H element decreased as the residence time increased.

show abstract

Experimental microwave-assisted air gasification of biomass in fluidized bed reactor

Cited by 32 publications

References 42 publications

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

Experimental Study on Microwave Pyrolysis of Decommissioned Wind Turbine Blades Based on Silicon Carbide Absorbents

A Numerical Simulation and Experimental Study of Fluidization Characteristics of a Bubbling Fluidized Bed in Biomass Gasification

Changes of C, H, and N Elements of Corn Straw during the Microwave Heating Process

Contact Info

Product

Resources

About