A Review on the thermochemical conversion of sugarcane bagasse into biochar

Iwuozor, Kingsley O.; Emenike, Ebuka Chizitere; Ighalo, Joshua O.; Omoarukhe, Fredrick O.; Omuku, Patrick E.; Adeniyi, Adewale George

doi:10.1016/j.clema.2022.100162

Cited by 51 publications

(15 citation statements)

References 133 publications

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“…The residence time, which is the amount of time that the biomass feedstock remains in the gasifier, is also an important factor in TLUD gasifier design. A longer residence time can lead to more complete combustion and gasification, as well as a higher yield of biochar 96 . However, a longer residence time can also increase the risk of clogging and reduce gasification efficiency.…”

Section: Principle Of Tlud Technologymentioning

confidence: 99%

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Conversion of biomass to biochar using top‐lit updraft technology: a review

Adeniyi

Iwuozor

Muritala

et al. 2023

Biofuels Bioprod Bioref

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The demand for biochar has increased over time due to its wide range of applications in various industries. Biochar, which is the solid product of the thermochemical conversion of biomass, has been synthesized using different reactor‐based technologies. One such technology is top‐lit updraft (TLUD) technology. This study is a review of published literature that discusses trends in the utilization of the TLUD technology, focusing on biochar production. This study also evaluated the principles of TLUD technology. The properties and applications of TLUD‐based biochar were also discussed. In comparison with other technologies, TLUD technology is characterized by higher thermal efficiency, simplicity of starting the fuel, low smoke emission, and high biochar yield. It was observed that the use of TLUD technology resulted in the production of high‐quality biochar with a variety of characteristics, which has been utilized as an adsorbent for wastewater treatment, in the agricultural sector to increase soil nutrients, and as a solid fuel. The concept of semi‐batch‐fed TLUD technology was also introduced in this study to enhance the efficiency and output of the batch‐fed TLUD configuration that has been in use. Some knowledge gaps in the study could be addressed by future studies on the use of this technology.

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Section: Principle Of Tlud Technologymentioning

confidence: 99%

“…A longer residence time can lead to more complete combustion and gasification, as well as a higher yield of biochar. 96 However, a longer residence time can also increase the risk of clogging and reduce gasification efficiency. The residence time can be controlled by adjusting the fuel bed depth and the air flow rate.…”

Section: Principle Of Tlud Technologymentioning

confidence: 99%

Conversion of biomass to biochar using top‐lit updraft technology: a review

Adeniyi

Iwuozor

Muritala

et al. 2023

Biofuels Bioprod Bioref

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“…Given the impressive carbon percentage, this biochar holds strong promise for enhancing soil carbon storage, which can play a pivotal role in mitigating the adverse effects of climate change by sequestering atmospheric carbon dioxide when integrated into soil ecosystems. 37,38 In conjunction with carbon, potassium emerges as a significant component, comprising approximately 18.79% of the composition. The presence of potassium in teak seed biochar can have notable implications for its application in agriculture.…”

Section: Teak Seed Biochar Elemental Composition and Implicationsmentioning

confidence: 99%

“…The presence of potassium may influence the material's properties and durability. 21,39 Functional group analysis of teak seed biochar…”

Section: Teak Seed Biochar Elemental Composition and Implicationsmentioning

confidence: 99%

“…It is important to note that precise process variables, such as temperature, retention time, and feedstock type, can be adjusted in the use of the retort-heating process to generate biochar with properties optimized for specific uses. [19][20][21] There has yet to be any study in the literature that has converted teak seeds into biochar. The aim of this study is to investigate the valorization of teak seed waste through thermochemical processing using a retort heating system, with a focus on the production of biochar and its characterization.…”

Section: Introductionmentioning

confidence: 99%

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Unlocking the potential of teak seed waste: carbonization for sustainable resource transformation

Adeniyi,

Iwuozor,

Ezzat

et al. 2023

Biofuels Bioprod Bioref

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The importance of carbonizing teak seed waste lies in unlocking its untapped potential for sustainable resource transformation while achieving waste management and converting the waste to more valuable products. This study investigates the production and characterization of teak‐seed biochar employing a top‐lit updraft reactor. The process parameters include a carbonization time of 2 h and a peak temperature of 379 °C, resulting in a substantial yield of 42%. Elemental analysis reveals the biochar's composition, consisting of 77.20% carbon and 18.79% potassium, positioning it as a valuable resource with versatile applications. The Fourier transform infrared (FTIR) analysis showcases a rich variety of functional groups within the biochar, including alcohols, carboxylic and phenolic groups, amides, and various hydrocarbon structures, signifying its multifaceted potential for applications like the adsorption of aqueous pollutants, soil stabilization, and enhanced ion‐exchange capacity. Textural assessments emphasize its noteworthy surface area (Brunauer, Emmett, and Teller (BET) analysis: 190.05 m2g−1; Langmuir: 1664.35 m2g−1), micropore volume (0.069 cm3g−1), and total pore volume (0.097 cm3/g−1), primarily characterized by mesoporous attributes (pore diameter: 2.153 nm), rendering it suitable for various applications. Scanning electron microscopy (SEM) analysis of surface morphology reveals a rough texture embellished with various‐sized and shaped particles, distinguished by their silvery, shiny appearance, which is attributed to the biochar's elemental composition, particularly the presence of potassium. These findings underline the promising potential of teak seed biochar across multiple applications, including agriculture, wastewater treatment, and environmental remediation.

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