Synthesis and characterization of biomass-derived surface-modified activated carbon for enhanced CO2 adsorption

Sarwar, Azeem; Ali, Majid; Khoja, Asif Hussain; Nawar, Azra; Waqas, Adeel; Liaquat, Rabia; Naqvi, Salman Raza; Asjid, Muhammad

doi:10.1016/j.jcou.2021.101476

Cited by 113 publications

(23 citation statements)

References 66 publications

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“…The volume of micropores in the range of 0.33–0.82 nm of bamboo-derived ACs was the main factor responsible for the CO 2 adsorption at 273 K and 1 bar, while neither the surface area nor the total pore volume were significant factors 13 . In contrast, both the surface area and micropore volume played a crucial role on the CO 2 uptake by coconut shell-derived ACs 17 , local coal-derived AC activated by KOH 18 and corncob-derived AC activated by KOH 19 . A high CO 2 uptake of Mesua ferrea seed cake-derived AC was obtained when the AC had a high micropore quantity and surface functionality 20 .…”

Section: Introductionmentioning

confidence: 96%

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Koo‐Amornpattana

Jonglertjunya

Phadungbut

et al. 2022

Sci Rep

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A series of activated carbons (ACs) derived from spent disposable wooden chopsticks was prepared via steam activation and used to separate carbon dioxide (CO2) from a CO2/hydrogen (H2) mixed gas at atmospheric pressure. A factorial design was employed to investigate the effects of the activation temperature and time as well as their interactions on the production yield of ACs and their CO2 adsorption capacity. The activation temperature exhibited a much higher impact on both the production yield and the CO2 adsorption capacity of ACs than the activation time. The interaction of both parameters did not significantly affect the yield of ACs, but did affect the CO2 adsorption capacity. The optimal preparation condition provided ACs with a desirable yield of around 23.18% and a CO2 adsorption capacity of 85.19 mg/g at 25 °C and 1 atm and consumed the total energy of 225.28 MJ/kg AC or 116.4 MJ/g-mol CO2. A H2 purity of greater than 96.8 mol% was achieved from a mixed gas with low CO2 concentration (< 20 mol%) during the first 3 min of adsorption and likewise around 90 mol% from a mixed gas with a high CO2 concentration (> 30 mol%) during the first 2 min. The CO2 adsorption on the as-prepared ACs proceeded dominantly via multilayer physical adsorption and was affected by both the surface area and micropore volume of the ACs. The adsorption capacity was diminished by around 18% after six adsorption/desorption cycles. The regeneration of the as-prepared chopstick-derived ACs can be easily performed via heating at a low temperature and ambient pressure, suggesting their potential application in the temperature swing adsorption process.

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Section: Introductionmentioning

confidence: 96%

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Koo‐Amornpattana

Jonglertjunya

Phadungbut

et al. 2022

Sci Rep

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“…The process is optimized to minimize the energy consumption and to maximize the biomass utilization, leading to an improvement in process economics. Regarding the latter one, we co‐produce furfural, a versatile platform material for adsorption and chemical reaction, [32] and activated carbon from hemicellulose and biomass residues (e. g., humins, etc. ), respectively.…”

Section: Introductionmentioning

confidence: 99%

Toward Economical and Sustainable Production of Renewable Plastic: Integrative System‐Level Analyses

Kim

Won

2022

ChemSusChem

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2,5-Furandicarboxylic acid (FDCA) is one of the promising renewable plastic monomers enabling to address several environmental issues, instead of petroleum-based terephthalic acid (TPA). In this study, an integrative process for the coproduction of FDCA and furfural as well as activated carbon was developed, and the economic feasibility and environmental sustainability for the proposed process were evaluated. In the proposed process, there were major four catalytic conversion reactions: (1) hydrolysis of biomass to its derivatives (cellulose, hemicellulose, and lignin), (2) dehydration of hemicellulose to furfural, (3) dehydration of cellulose to 5-hydroxymethylfurfural (HMF), and (4) successive oxidation of HMF to FDCA. Partic-ularly, a heat exchanger network coupled with a heat pump was established to minimize the utility consumption, thereby reducing 72 % of the heating requirement. Techno-economic analysis revealed that the minimum selling price of FDCA was $1380 ton À 1 , which is comparable to that of petroleum-based TPA ($1445 ton À 1 ). Uncertainty analysis using the Monte Carlo simulation method was employed to quantify the risk associated with the unforeseen market condition. From the life-cycle assessment, we observed that the proposed process is more environmentally sustainable than conventional TPA production in terms of climate change and fossil depletion metrics.

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“…that are applied to different BCPs. , The advanced physicochemical features of BACs mostly rely on the type and mass ratio of activation agents (e.g., KOH, ZnCl 2 , H 2 O 2 , NaNH 2 , K 2 CO 3 ) and tuning parameters of thermochemical conversion (such as activation temperature, heating rate, gas flow rate, etc. ). − From the morphological perspective, BACs can possess diverse geometric configurations (hierarchical, sheet, tubular, and sphere) with extended surface area and porosity. These structural properties comparatively can lead to introducing valuable active surfaces, which subsequently result in efficient CO 2 physisorption. − …”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimizing N/O-Enriched Bio-Derived Adsorbents for CO₂ Capture: Machine Learning and DFT Calculation Approaches

Rahimi

Abbaspour‐Fard

Rohani

et al. 2022

Ind. Eng. Chem. Res.

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The CO2 emission issue has triggered the promotion of carbon capture and storage (CCS), particularly bio-route CCS as a sustainable procedure to capture CO2 using biomass-based activated carbon (BAC). The well-known multi-nitrogen functional groups and microstructure features of N-doped BAC adsorbents can synergistically promote CO2 physisorption. Here, machine learning (ML) modeling was applied to the various physicochemical features of N-doped BAC as a challenge to figure out the unrevealed mechanism of CO2 capture. A radial basis function neural network (RBF-NN) was employed to estimate the in operando efficiency of microstructural and N-functionality groups at six conditions of pressures ranging from 0.15 to 1 bar at room and cryogenic temperatures. A diverse training algorithm was applied, in which trainbr illustrated the lowest mean absolute percent error (MAPE) of <3.5%. RBF-NN estimates the CO2 capture with an R 2 range of 0.97–0.99 of BACs as solid adsorbents. Also, the generalization assessment of RBF-NN observed errors, tolerating 0.5–6% of MAPE in 50–80% of total data sets. An alternative survey sensitivity analysis discloses the importance of multiple features such as specific surface area (SSA), micropore volume (%V mic), average pore diameter (AVD), and nitrogen content (N%), oxidized-N, and graphitic-N as nitrogen functional groups. A genetic algorithm (GA) optimized the physiochemical properties of N-doped ACs. It proposed the optimal CO2 capture with a value of 9.2 mmol g–1 at 1 bar and 273 K. The GA coupled with density functional theory (DFT) to optimize the geometries of exemplified BACs and adsorption energies with CO2 molecules.

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Synthesis and characterization of biomass-derived surface-modified activated carbon for enhanced CO2 adsorption

Cited by 113 publications

References 66 publications

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Toward Economical and Sustainable Production of Renewable Plastic: Integrative System‐Level Analyses

Modeling and Optimizing N/O-Enriched Bio-Derived Adsorbents for CO₂ Capture: Machine Learning and DFT Calculation Approaches

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Synthesis and characterization of biomass-derived surface-modified activated carbon for enhanced CO2 adsorption

Cited by 113 publications

References 66 publications

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Valorization of spent disposable wooden chopstick as the CO2 adsorbent for a CO2/H2 mixed gas purification

Toward Economical and Sustainable Production of Renewable Plastic: Integrative System‐Level Analyses

Modeling and Optimizing N/O-Enriched Bio-Derived Adsorbents for CO2 Capture: Machine Learning and DFT Calculation Approaches

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Product

Resources

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Modeling and Optimizing N/O-Enriched Bio-Derived Adsorbents for CO₂ Capture: Machine Learning and DFT Calculation Approaches