Alternative feedstock for the production of activated carbon with ZnCl2: Forestry residue biomass and waste wood

Bosch, Dominik; Back, Jan O.; Gurtner, David; Giberti, Sara; Hofmann, A.; Bockreis, Anke

doi:10.1016/j.crcon.2022.09.001

Cited by 31 publications

(10 citation statements)

References 66 publications

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“…Thus, non-organic elements are removed from the rigid structure in this temperature range, without degrading the carbon structure in the form of a skeleton. 47,48 The 2⊔ diffractograms were analyzed ranging from 10 to 60°( Fig. 2).…”

Section: Resultsmentioning

confidence: 99%

“…1), C activated with ZnCl 2 has lower energy absorption than HNO 3 ‐activated C. This may have occurred because the porosity proven by BET analysis is greater for ZnCl 2 ‐activated C. The greater porosity is closely related to the CA of lignocellulosic materials. Thus, non‐organic elements are removed from the rigid structure in this temperature range, without degrading the carbon structure in the form of a skeleton 47,48 …”

Section: Resultsmentioning

confidence: 99%

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Removal of bentazone using activated carbon from spent coffee grounds

Rocha,

Moraes,

Santo

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThis study aimed to produce activated carbon from spent coffee (Coffea arabica) grounds by chemical activation using zinc chloride and nitric acid to remove bentazone from aqueous solutions.RESULTSThe fresh spent coffee grounds were characterized by Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and the activated carbon by X‐ray Diffraction (XRD), Infrared Spectroscopy (FT‐IR), Brunauer–Emmett– Teller (BET), point of zero charge, scanning electron microscopy (SEM), and Boehman method. Adsorption experiments were carried out in a batch system. The results showed a 70% efficiency in bentazone removal using ZnCl2 carbon. Kinetic studies indicate that the adsorption rate increased slowly up to 720 min; the first‐ and second‐order models fit the experimental data at a concentration of 50 mg.L−1. The adsorption equilibrium is represented by the Langmuir model with a high adsorption capacity of 279.33 ± 6.29 mg.mg−1. The adsorption efficiency was also confirmed by the toxicity analysis of the effluent with bentazone at 50 mg.L−1, using the A. cepa bioassay, a high‐sensitivity test for pollutants in water.CONCLUSIONBefore adsorption, the effluent caused significant cytogenotoxicity to onion root meristems. After adsorption, the generated effluent no longer caused toxicity to the test system, and the results obtained were similar to the control with distilled water.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Removal of bentazone using activated carbon from spent coffee grounds

Rocha,

Moraes,

Santo

et al. 2024

J of Chemical Tech & Biotech

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“…Waste wood from the local waste wood plant, classified under waste code SN 17201, was used for activation using ZnCl 2 according to Ref. [ 22 ] (500 °C; 2 h; 10 °C min −1 ; 5:1).…”

Section: Methodsmentioning

confidence: 99%

Gasification chars and activated carbon: Systematic physico-chemical characterization and effect on biogas production

Margreiter,

Probst,

Prem

et al. 2024

Heliyon

Self Cite

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“…The ash content and composition derived from forest residue has also been studied by Bosch et al (2022). The forest residue was derived from a local wood processing facility and was a mixture of sapwood, bark, tops, and branches.…”

Section: Total Ash Contentmentioning

confidence: 99%

Critical review of the role of ash content and composition in biomass pyrolysis

Puri,

Hu,

Naterer

2024

Front. Fuels

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In the face of environmental challenges (e.g., dramatically increasing greenhouse gas emissions and climate change), it is utmost of importance to sustainable energy systems. Biomass consisting of agricultural and forest waste, municipal solid waste, and aquatics, has been identified as alternative and promising fuel sources. Thermochemical conversion approaches like pyrolysis can turn various types of biomass into three valuable product streams, namely, bio-oil, biochar, and syngas. To date, past review articles have considered the major operating parameters of kinetics, chemistry, and the application of pyrolysis products. However, ash content is one of the key biomass components that lacks investigation on its influence during biomass pyrolysis with respect to products yield and properties. This review article examines: i) the ash content and composition in different types of biomass; ii) effects of ash content on catalytic pathway and biomass thermal degradation; iii) ash related problems in the thermal degradation of biomass; and iv) available deashing techniques for biomass. The review aims to provide new understandings and insights regarding the effects of ash content and composition on biomass pyrolysis.

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Alternative feedstock for the production of activated carbon with ZnCl2: Forestry residue biomass and waste wood

Cited by 31 publications

References 66 publications

Removal of bentazone using activated carbon from spent coffee grounds

Removal of bentazone using activated carbon from spent coffee grounds

Gasification chars and activated carbon: Systematic physico-chemical characterization and effect on biogas production

Critical review of the role of ash content and composition in biomass pyrolysis

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