Evaluation of Low Cost-Activated Carbon Produced from Waste Tyres Pyrolysis for Removal of 2-Chlorophenol

Kanchana, Manirajah; Sukumaran, S.; Abdullah, Noorlidah; Razak, H.A.; Ainirazali, Nurul

doi:10.9767/bcrec.14.2.3617.443-449

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…e three valuable products of waste tires that are processed through pyrolysis are pyro-oil, pyrogas, and pyro-char [35]. Due to its high carbon content, surface area, and porosity, pyro-char (activated carbon derived from the waste tire) can be used as an adsorbent for removing different pollutants from wastewater [24,[36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Kassahun

Tibebu

Tadesse³

et al. 2022

Advances in Materials Science and Engineering

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This study aimed to investigate the synthesis optimization of activated carbon-driven scrap tires for adsorbent yield and methylene blue removal under response surface methodology. The scrap tire sample was activated by KOH using ethanol as a solvent. The optimized activated carbon was characterized using proximate analysis, scanning electron microscope (SEM), X-ray diffraction (XRD), and Brunauer Emmett Teller (BET) method. The activated carbon was demineralized using 5 M NaOH + 98% H2SO4 (1 : 1) as a solvent to enhance the surface area. Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models were used to check the adsorption isotherm. The adsorption kinetics was checked using pseudo-first-order and pseudo-second-order models. Weber-Morris intraparticle diffusion model was used to study the diffusion mechanism. The optimum impregnation ratio, impregnation time, and carbonization temperature for synthesizing the activated carbon were 2 g/g, 12 hr, and 700°C, respectively. The moisture content, volatile matter, ash content, fixed carbon, and bulk density of the activated carbon were 6.13%, 9.42%, 5.34%, 79.11%, and 0.89 mg/L, respectively. The surface area of optimized activated carbon was enhanced by demineralization process and increased from 53 m2/g to 260.26 m2/g. Temkin adsorption isotherm with R2 values of 0.982 and pseudo-second-order adsorption kinetics with R2 values of 0.999 best fits the experimental data respectively. Intraparticle diffusion was not the only rate-controlling step for both optimized and demineralized (NaOH + H2SO4) activated carbon. It can be concluded that the optimized and demineralized activated carbon derived from scrap tires has a promising potential to be used as a low-cost adsorbent in developing countries including Ethiopia. However, further investigation needs to be conducted before scaling up at industrial level.

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Section: Introductionmentioning

confidence: 99%

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Kassahun

Tibebu

Tadesse³

et al. 2022

Advances in Materials Science and Engineering

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“…Initial research on specially prepared chars from rubber wastes has proven beneficial for the capture of both mercury [32] and other heavy metals [33]. Considering the amount of mercury released by the energy sector [34][35][36][37][38][39][40], the research was organized to determine the potential of rubber char as a sorbent for capturing mercury from flue gas at different temperatures and compare it to other possible adsorbents as an alternative for expensive activated carbons.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

et al. 2021

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The research presented by the authors in this paper focused on understanding the behavior of mercury during coal combustion and flue gas purification operations. The goal was to determine the flue gas temperature on the mercury emissions limits for the combustion of lignites in the energy sector. The authors examined the process of sorption of mercury from flue gases using fine-grained organic materials. The main objectives of this study were to recommend a low-cost organic adsorbent such as coke dust (CD), corn straw char (CS-400), brominated corn straw char (CS-400-Br), rubber char (RC-600) or granulated rubber char (GRC-600) to efficiently substitute expensive dust-sized activated carbon. The study covered combustion of lignite from a Polish field. The experiment was conducted at temperatures reflecting conditions inside a flue gas purification installation. One of the tested sorbents—tire-derived rubber char that was obtained by pyrolysis—exhibited good potential for Hg0 into Hg2+ oxidation, resulting in enhanced mercury removal from the flue. The char characterization increased elevated bromine content (mercury oxidizing agent) in comparison to the other selected adsorbents. This paper presents the results of laboratory tests of mercury sorption from the flue gases at temperatures of 95, 125, 155 and 185 °C. The average mercury content in Polish lignite was 465 μg·kg−1. The concentration of mercury in flue gases emitted into the atmosphere was 17.8 µg·m−3. The study analyzed five low-cost sorbents with the average achieved efficiency of mercury removal from 18.3% to 96.1% for lignite combustion depending on the flue gas temperature.

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“…Initial research on specially prepared chars from rubber wastes was proven beneficial for both captures of mercury (Li et al 2015) and other ecotoxic elements capture (Chan et al 2012, Martínez et al 2013, Selbes et al 2015. Conducted studies suggest (Manirajah et al 2019) that activated carbon produced from rubber char in wastewater cleanup of phenolic compounds, heavy metals (Dimpe et al 2017), disposed pharmaceuticals (Styszko et al2017) and pesticides (Gupta et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Low Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

Marczak-Grzesik

Budzyń

Tora

et al. 2021

Preprint

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Based on the knowledge of the impact of aspects tied to and utilised technology and raw materials on the speciation of mercury in the flue gas, the authors have undertaken the task of examining the process of sorption of mercury from flue gases using fine-grained organic materials. The main objectives of this study was to recommend a Low-Cost Organic Asorbent such as coke dust CD, Corn straw char CS-400, Brominated Corn straw char CS-400-Br, Rubber Char RC-600 and Granulated Rubber Char GRC-600 to efficiently substitute expensive dust-sized activated carbon. The study covered combustion of lignite from Polish field. The experiment was conducted at temperatures reflecting conditions inside a flue gas purification installation. The average mercury content in Polish lignite was 465 µg·kg-1. The concentration of mercury in flue gases emitted into the atmosphere was 17.8 µg·m-3.The study analysed five low-cost sorbents with the average achieved efficiency of mercury removal from 18.3 to 96.1% for lignite combustion depending on the flue gas temperature. Two of the tested sorbents exhibited good potential for Hg0 into Hg2 + oxidation, resulting in enhanced mercury removal from the flue.

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Evaluation of Low Cost-Activated Carbon Produced from Waste Tyres Pyrolysis for Removal of 2-Chlorophenol

Cited by 8 publications

References 19 publications

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Low-Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

Low Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

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