Conversion of natural feedstocks to porous carbons via carbonization in fluidized catalyst bed followed by leaching the feedstock mineral template phase: A comparison of biomass and sedimentary raw materials

Dubinin, Yury; Yazykov, N. A.; Tabakaev, Roman; Okotrub, Konstantin A.; Yakovlev, V. А.

doi:10.1016/j.fuproc.2021.107076

Cited by 10 publications

(7 citation statements)

References 59 publications

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“…23,53,82 The OPL biochar has more pores of varying sizes than the OPL feedstock due to the evaporation of MC and VM in OPL biochar. 83 During the evaporation, dehydration, devolatilization, and lignocellulose decomposition occurred. The proximate analysis supported the results, as shown in Table 2.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

“…The OPL feedstock structure in Fig.5(a) shows a complex morphological structure with a less porous crystalline structure typical of lignocellulosic biomass structure 23,53,82. The OPL biochar has more pores of varying sizes than the OPL feedstock due to the evaporation of MC and VM in OPL biochar 83. During the evaporation, dehydration, devolatilization, and lignocellulose decomposition occurred.…”

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confidence: 99%

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Elaeis guineensisleaves for potential renewable sub‐bituminous coal: Optimization of biochar yield by response surface methodology and product characterization

Nik Pauzi,

Ramli,

Chan

et al. 2023

Biofuels Bioprod Bioref

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Pyrolysis of oil palm biomass residue can convert the rich organic matter in biomass into sustainable green energy, thereby addressing the challenge of surplus oil palm biomass residue generated during cultivation. Nonetheless, the pyrolysis of oil palm leaves (OPLs) has received limited attention. In this study, design of experiment‐response surface methodology (DoE‐RSM) was employed to identify the optimal combination of reaction temperature, residence duration, and nitrogen (N₂) flow rate for maximum biochar yield. The elemental analysis, high heating value (HHV), functional group, morphology, pore structure, and thermal behavior were assessed. By varying the operational parameters using response surface methodology, the biochar yield increased by 32.6–85.3%. The DoE‐RSM predicted a theoretical yield of 52.1% at 344 °C, 146 min, and 3.2 scfh N₂ flow rate. The experiment confirmed a comparable yield of 53.7% at the stated parameters. The HHV of 24.14 MJ kg−1 was recorded under optimal conditions, and was comparable to sub‐bituminous and bituminous coal. Fourier transform infrared analysis validated the OPL biochar by weakening O‐H, C=O, C‐OH, and C‐H peaks. Scanning electron microscopy images revealed enlarged pores and altered morphology in the OPL biochar. X‐ray diffraction showed lower crystallinity of the OPL biochar than the feedstock. Raman spectroscopy showed higher ID/IG, indicating a more disordered carbon structure in the OPL biochar. Thermogravimetric analysis confirmed higher temperature for main devolatilization of OPL biochar, and the differential thermogravimetric analysis curve pattern resembled that of Mukah Balingan coal. The findings are helpful for an initiative to convert a large amount of leftover OPLs produced during cultivation and to turn them into high value‐added material for a sustainable contribution to a circular carbon economy.

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Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

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confidence: 99%

Elaeis guineensisleaves for potential renewable sub‐bituminous coal: Optimization of biochar yield by response surface methodology and product characterization

Nik Pauzi,

Ramli,

Chan

et al. 2023

Biofuels Bioprod Bioref

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“…Recently, in the previous work, a set of chars from two biomass wastes (wheat bran and rice husk) as well as two sedimentary feedstocks (highly-mineralized peat, and coal) were obtained via partial combustion in the fluidized catalyst bed (FCB) reactor at 465 -600 • C and evaluated as precursors of porous carbons via acid leaching of the char mineral phase [20]. The goal of this work is to investigate the obtained materials with a wider set of characterization techniques that include FTIR and TGA, as well as estimate properties of the synthesized chars as potential adsorbents for wastewater treatment through the removal of inorganic and organic industrial pollutants.…”

Section: Introductionmentioning

confidence: 99%

Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed

Yeletsky,

Yazykov,

Dubinin

et al. 2024

Nanosystems: Phys. Chem. Math.

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A green and energy-efficient technique for production of porous carbon-mineral chars from agricultural wastes (rice husk, wheat bran) and sedimentary carbonaceous feedstocks (high-ash peat, coal) was developed. It is based on partial combustion in fluidized bed of a deep oxidation catalyst at low temperatures (465 -600 • C). This technique yields porous chars with an elevated mineral content that depends on a feedstock used, and gaseous products of complete oxidation. It was found that the obtained chars have developed porosity with BET specific surface area of ca. 50 -170 m 2 g −1 , pore volume of 0.05 -0.17 ml•g −1 , and ash content of 16 -79 wt. %. They were additionally characterized by TGA and FTIR. Their testing as adsorbents for heavy metal ions (by the example of Cu 2+ ) and organic dyes (by the example of methyl green) revealed that their adsorption capacities are comparable to those of chars produced by the conventional pyrolytic approaches. KEYWORDS biochar, biomass, rice husk, bran, fluidized catalyst bed, composite

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“…On the other hand, developing a new method of preparing AC by GB can reduce costs [ 5 ]. However, the single functional carbon-based adsorbent can only achieve the function of turning waste into treasure and has certain limitations for treating heavy metals [ 6 ]. Therefore, preparing a bifunctional carbon-based material that can adsorb and detect heavy metals is necessary.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ganoderma Lucidum Bran-Based Biological Activated Carbon for Dual-Functional Adsorption and Detection of Copper Ions

Wang

Lan

et al. 2023

Materials

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In this paper, Ganoderma lucidum bran was explored as the precursor to fabricate biomass activated carbon. When potassium hydroxide was selected as an activator (1:6, mass ratio of AC-12 to potassium hydroxide), and the activation condition was 700 °C at 5 h, the highest specific surface area reached 3147 m2 g−1. Carbon dots were prepared with citric acid monohydrate and thiourea as precursors and then loaded onto the surface of activated carbon by a simple and green method. Activated carbon for dual-functional had a high adsorption capacity. Additionally, based on its unique optical properties, the fluorescence response for detecting copper ion was established. The fluorescence intensity of the materials decreased linearly with the increase of copper ion concentration, in the range of 10–50 nmol L−1. The research opened up a new way for applying biomass activated carbon in the field of adsorption and detection. Highlights: (1) Carbon dots were loaded on the surface of activated carbon; (2) the simultaneous adsorption and detection were realized; (3) it provides a way for the preparation of dual-functional materials.

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Conversion of natural feedstocks to porous carbons via carbonization in fluidized catalyst bed followed by leaching the feedstock mineral template phase: A comparison of biomass and sedimentary raw materials

Cited by 10 publications

References 59 publications

Elaeis guineensisleaves for potential renewable sub‐bituminous coal: Optimization of biochar yield by response surface methodology and product characterization

Elaeis guineensisleaves for potential renewable sub‐bituminous coal: Optimization of biochar yield by response surface methodology and product characterization

Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed

Preparation of Ganoderma Lucidum Bran-Based Biological Activated Carbon for Dual-Functional Adsorption and Detection of Copper Ions

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