Effects of pyrolysis temperature and pressure on agronomic properties of biochar

Balmuk, Gizem; Videgain, María; Manyà, Joan J.; Duman, Gözde; Yanık, Jale

doi:10.1016/j.jaap.2023.105858

Cited by 26 publications

(11 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, it was found that a higher hydrochar yield can be acquired at a higher feedstock loading (or less water content) and a lower temperature, as shown in Figure 3B. Biomass hydrolysis is the initial step in the biomass thermal decomposition, and [34] Furniture waste 220-280 (no catalyst) 43-76 Dang et al [35] Sawdust 225-275 (no catalyst) 32-50 Ercan et al [36] Corn waste 180-260 (no catalyst) 37-69 Wu et al [37] Sawdust 140-180 (with/ without catalyst)…”

Section: Optimization Of Catalytic Htc Reaction Parametersmentioning

confidence: 96%

“…In this study, the presence of catalyst can be helpful for facilitating biomass degradation to produce a hydrochar yield that is comparable to that obtained from a relatively higher operating temperature in HTC. [34] However, more holistic studies are needed to compare the significance of temperature and catalyst on hydrochar yield and properties from biomass of a wide range biomass.…”

Section: Optimization Of Catalytic Htc Reaction Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Hydrothermal carbonization of sawdust for hydrochar production to prepare solid fuels

Lilian,

Shui,

Rajput

et al. 2023

Can J Chem Eng

View full text Add to dashboard Cite

Hydrothermal carbonization (HTC) of sawdust for producing hydrochar was optimized using response surface methodology (RSM). After optimization, the combustion behaviour and other relevant fuel properties of hydrochar that was obtained at the optimized conditions were studied. Additionally, the aqueous phase obtained at the optimized conditions was recycled as the reaction medium for producing hydrochar and the influence of the aqueous phase recycling on the hydrochar yield and properties was evaluated. The results indicated that the highest hydrochar yield of 84.23 wt.% under the predicted optimum conditions of temperature of 162.23°C, 2.51 h, feedstock loading of 10.71 wt.%, and catalyst loading of 7.99 wt.%. Furthermore, it was found that the use of recycled aqueous phase as the reaction medium led to an increase in the hydrochar yield, higher heating value (HHV), and energy yield, and difference in combustion behaviour was minor. Overall, this study filled the gap in HTC literature regarding the effect of catalyst on hydrochar production and provided a practical solution to treat the aqueous phase.

show abstract

Section: Optimization Of Catalytic Htc Reaction Parametersmentioning

confidence: 96%

Section: Optimization Of Catalytic Htc Reaction Parametersmentioning

confidence: 99%

Hydrothermal carbonization of sawdust for hydrochar production to prepare solid fuels

Lilian,

Shui,

Rajput

et al. 2023

Can J Chem Eng

View full text Add to dashboard Cite

show abstract

“…Fiber Methylene Blue 99% Carvalho et al [43] Activated carbon Methylene Blue 162.54 mg g − 1 Maia et al [44] Table 1 Activated carbon (AC) derived from residual biomass have excellent properties such as large surface area, availability of functional groups, high porosity, microporous structure, nonpolar character, high adsorption e ciency, and economic viability [32][33][34][35][36]. In this way, it becomes a great alternative to commercial activated carbons, usually produced from expensive and non-renewable precursors [37].…”

Section: Adsorbent Contaminants Adsorption Capacity Referencementioning

confidence: 99%

Prospective life cycle assessment of activated carbon production derived from banana peel for methylene blue dye removal

Pereira,

Maia,

Silva

et al. 2024

Preprint

View full text Add to dashboard Cite

Activated carbon (AC) produced from agro-industrial waste is an interesting adsorbent in water purification and effluent treatment processes. In this work, activated biochar (BFAC) from banana peel waste (BPF) was prepared by chemical activation (NaOH) followed by pyrolysis at 600 °C to remove methylene blue (MB) from wastewater. BFAC was characterized by TGA, XRD, SEM, and FTIR techniques. The influence of dye concentration (10, 25, 50, 100, 250, and 500 mg L−1) and zero point charge (ZPC) were investigated. Besides, a Life Cycle Assessment (LCA) was conducted to evaluate and analyze the environmental effects of the developed process. BFAC presented a well-developed pore structure with a predominance of mesopores and macropores, influencing the MB removal capacity. The highest efficiency for dye removal was 62 % after 10 min to an initial concentration of 50 mg.L-1. Temkin, Langmuir, and Freundlich, isotherm models defined the adsorption isotherms well. The Langmuir model represented the best fit of experimental data for BFAC with a maximum adsorption capacity of 417 mg g−1. Regarding LCA, a prospective approach at the early stage of development was conducted to orient the transition from laboratory to industrial scale, aiming at providing a competitive CO2-based technological route. The proposed scenarios suggest that this route is promising either from the life cycle assessment or the circular economy perspective. Thus, BFAC can be considered as an adsorbent of great practical application for post-treatment of wastewater effluents aiming to remove contaminants.

show abstract

“…While certain researchers have noted a decrease in PAH content in biochar when subjected to high-pressure conditions . Conversely, others argue that elevated pressure can increase in these compounds due to the partial inhibition of PAH vaporization …”

Section: Modeling the Conversion Of Biomass Macromolecules To Biocharmentioning

confidence: 99%

“…131 Conversely, others argue that elevated pressure can increase in these compounds due to the partial inhibition of PAH vaporization. 132 The existing carbonization models published so far focus primarily on describing the reactions responsible for forming small intermediates and some aromatic structures rather than providing a comprehensive understanding of the carbonization mechanism. As a result, uncertainty remains concerning the larger intermediates and products that arise during the carbonization process to form biochar.…”

Section: Dehydration and Cracking/fragmentation (150 To 240 °C) Dehyd...mentioning

confidence: 99%

Atomistic Modeling of Lignocellulosic and Carbonaceous Fuels and Their Pyrolysis Reactions: A Review

Sierra-Jimenez,

Mathews,

Chejne

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

This paper explores the utility of large-scale atomistic models to examine the complex relationship between biochar behavior, its structural characteristics, and the reactions involved in its formation. Pyrolysis kinetic models primarily focus on explaining the formation of small volatiles and aromatic structures without fully understanding the carbonization process. To gain a deeper understanding of carbonization and move beyond unrealistic structures resembling levoglucosan, it is necessary to examine the transformation of the lignocellulosic macromolecules into carbonaceous structures from a molecular-level perspective. This includes exploring structural transitions and large-scale reactive dynamics. Furthermore, incorporating atomistic representations derived from experimental data and theoretical modeling can help overcome the limitations of relying solely on empirical and density functional theory approaches due to the need for scale to capture biochar properties. Additionally, by considering structural transitions on a large scale, we can effectively capture the complexity of biomass pyrolysis, the interaction of free radicals, and the pore size distribution, all essential for comprehending biochar reactivity and utility.

show abstract

Effects of pyrolysis temperature and pressure on agronomic properties of biochar

Cited by 26 publications

References 38 publications

Hydrothermal carbonization of sawdust for hydrochar production to prepare solid fuels

Hydrothermal carbonization of sawdust for hydrochar production to prepare solid fuels

Prospective life cycle assessment of activated carbon production derived from banana peel for methylene blue dye removal

Atomistic Modeling of Lignocellulosic and Carbonaceous Fuels and Their Pyrolysis Reactions: A Review

Contact Info

Product

Resources

About