Log in

Relevant bibliographies by topics / Coconut shell activated carbon

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers

Academic literature on the topic 'Coconut shell activated carbon'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Coconut shell activated carbon.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Coconut shell activated carbon"

1

Sulistyani, Erlinda, Daniel Boi Tamado, Futri Wulandari, and Esmar Budi. "Coconut Shell Activated Carbon as an Alternative Renewable Energy." KnE Energy 2, no. 2 (2015): 76. http://dx.doi.org/10.18502/ken.v2i2.360.

Full text

Abstract:

<p>Research coconut shell activated carbon as an alternative renewable energy has been done. Coconut shell activated carbon is processed into fuel that can replace coal. Coconut shell densely textured, hard, and old became a mainstay to be used as activated carbon. The process of forming into a coconut shell coconut shell activated carbon made by drying, pyrolysis, and carbonization. After it was examined DSC and SEM, so the coconut shell activated carbon obtained temperature of 500 0C is activated carbon which can produce the greatest heat and durable because of the many elements contained carbon and many pores are formed. </p><p><strong>Keywords</strong>: activated carbon; alternative renewable energy; coconut shell.</p>

APA, Harvard, Vancouver, ISO, and other styles

2

Rampe, Meytij Jeanne, Johny Zeth Lombok, Vistarani Arini Tiwow, Henny Lieke Rampe, and Marlen Garani. "SURFACE STRUCTURE AND CHEMICAL COMPOSITION OF COCONUT SHELL CHARCOAL USING NIRA AREN (Arenga pinnata) ACID ACTIVATION." Journal of Chemical Technology and Metallurgy 60, no. 2 (2025): 269–74. https://doi.org/10.59957/jctm.v60.i2.2025.8.

Full text

Abstract:

Coconut shell is a waste of copra manufactured in North Sulawesi, Indonesia. Pyrolysis coconut shell charcoal is potentially a raw material for bio-adsorbent for health. Bio-adsorbent activated carbon is produced from coconut shells using an acetic acid activator from palm sap (Arenga pinnata). Coconut shell pyrolysis was carried out at a temperature of 400 - 600oC and an acetic acid activator was obtained by fermenting the palm for six months. The results of the FT-IR analysis of coconut shell charcoal activated with CH3COOH 3 M and CH3COOH fermented palm sap showed a decrease or removal of impurity functional groups and an increase in coconut shell charcoal functional groups. The results of SEM-EDS analysis of coconut shell charcoal with CH3COOH activator fermentedpalm sap has a larger average pore diameter of 7.82 μm. The elemental content of carbon C is 87.88 % by mass. Thus, coconut shell charcoal activated using CH3COOH resulting from palm sap fermentation has potential as an adsorbent for industrial liquid waste.

APA, Harvard, Vancouver, ISO, and other styles

3

Leslie Mendame, Lauri, Patricia Silangen, and Alfrie Rampengan. "PERBANDINGAN KARAKTERISTIK KARBON AKTIF ARANG TEMPURUNG KELAPA DAN ARANG TEMPURUNG KEMIRI MENGGUNAKAN SCANNING ELECTRON MICROSCOPIC DAN FOURIER TRANSFORM INFRA RED." Jurnal FisTa : Fisika dan Terapannya 2, no. 2 (2021): 105–8. http://dx.doi.org/10.53682/fista.v2i2.138.

Full text

Abstract:

Utilization of coconut shell and candlenut shell in Indonesia has not been used optimally as in North Sulawesi. The purpose of this research was to compare the characteristics of the pore size and functional groups of activated carbon, coconut shell charcoal and candlenut shell charcoal. The research method includes the activation stage and characterization of activated carbon using Scanning Electron Microscopic (SEM) and Fourier Transform Infra Red (FTIR). The results of this study are the characteristics of coconut shell charcoal activated carbon which has a larger pore size of 31.5 µm - 41.9 µm when compared to candlenut shell charcoal activated carbon which has a small pore size, namely 23.0 µm - 33.1 µm. . Both of these activated carbons have the same functional group, namely O-H, C=C, C-O, C-H which is an activated carbon composition.

APA, Harvard, Vancouver, ISO, and other styles

4

Oktaviansyah, Ikbal, Erna Yuliwati, and Eko Ariyanto. "Optimization of Domestic Wastewater Treatment Using a Mixture of Coconut Shell Activated Carbon Adsorbent and Fly Ash." Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam 21, no. 2 (2024): 122–33. https://doi.org/10.31851/sainmatika.v21i2.16246.

Full text

Abstract:

Utilization of solid waste raw materials in the form of coconut shells and fly ash as adsrobents for domestic wastewater treatment. This study aims to optimize the effect of coconut shell activated carbon and fly ash with variations in mass ration and stirring time on changes in pH, COD, BOD, ammonia, TSS, and total coliform by adsorption on domestic liquid waste to meet waste quality standards. The research method includes the preparation of activated carbon from coconut shell, SEM characterization and experiments of a mixture of coconut shell activated carbon mass and fly ash (5:10, 10:5, 5:15, 15:5 grams) with variations in stirring time (30 minutes, 60 minutes). The results of the study, the most optimal mixture for changes in pH, ammonia, TSS, COD, BOD, total coliform parameters in domestic wastewater was a mixture of coconut shell activated carbon adsorbent mass of 15 grams and fly ash of 5 grams with a stirring time of 60 minutes.

APA, Harvard, Vancouver, ISO, and other styles

5

Nasri, Noor Shawal, Ramlan Noorshaheeda, Usman Dadum Hamza, Jibril Mohammed, Murtala Musa Ahmed, and Husna Mohd Zain. "Enhancing Sustainable Recycle Solid Waste to Porous Activated Carbon for Methane Uptake." Applied Mechanics and Materials 705 (December 2014): 19–23. http://dx.doi.org/10.4028/www.scientific.net/amm.705.19.

Full text

Abstract:

Potential agro wastes (i.e palm kernel shell and coconut shell) for producing low cost activated carbon (AC) was investigated. In this study, the activated carbon was produced by carbonization, chemical impregnation with KOH and microwave irradiation. The pyrolysis was carried out at 700 °C in an inert environment for 2 h. Microwave activation was carried out at 400W for 6 minutes. Characteristics of the material were investigated using Fourier transform infrared spectroscopy (FT-IR) analysis and scanning electrode microscopy (SEM). Methane adsorption equilibrium data on the activated carbons produced were obtained using static volumetric method. Microwave palm shell activated carbon (MPAC) and microwave coconut shell activated carbon (MCAC) recorded highest methane uptake of 2.489 and 1.929 mmol/g at 3 bar, 30°C. The adsorption data were correlated with Langmuir and Freundlich isotherms. The results shows that microwave activated carbon from palm shell and coconut shell have good methane adsorption characteristics.

APA, Harvard, Vancouver, ISO, and other styles

6

Nyamful, A., E. K. Nyogbe, L. Mohammed, et al. "Processing and Characterization of Activated Carbon from Coconut Shell and Palm Kernel Shell Waste by H3PO4 Activation." Ghana Journal of Science 61, no. 2 (2021): 91–104. http://dx.doi.org/10.4314/gjs.v61i2.9.

Full text

Abstract:

Palm kernel shell and coconut shell are used as a precursor for the production of activated carbon, a way of mitigating the tons of waste produced in Ghana. The raw Palm kernel shell and coconut shell were activated chemically using H3PO4. A maximum activated carbon yield of 26.3 g was obtained for Palm kernel shell and 22.9 g for coconut shell at 400oC, an impregnation ratio of 1.2 and 1-hour carbonization time. Scanning electron microscopy reveals well-developed cavities of the H3PO4 activated coconut shell and Palm kernel shell compared to the non-activated carbon. Iodine number of 743.02 mg/g and 682.11 mg/g, a porosity of 0.31 and 0.49 and the electrical conductivity of 2010 μS/cm and 778 μS /cm were obtained for the AC prepared from the coconut shell and Palm kernel shell respectively. The results of this work show that high-quality activated carbon can be manufactured locally from coconut shell and Palm kernel shell waste, and a scale-up of this production will go a long way to reduce the tons of coconut shell and Palm kernel shell waste generated in the country.

APA, Harvard, Vancouver, ISO, and other styles

7

Nuthongkum, Pilaipon, and Prasopporn Junlabhut. "Rapid Aqueous Dye Adsorption Using Carbon Powder Derived from Agricultural Waste of Coconut in Bangtalad Sub-district, Chachoengsao Province." Journal of Science Ladkrabang 33, no. 2 (2024): 18–35. https://doi.org/10.55003/scikmitl.2024.261438.

Full text

Abstract:

This research emphasizes the significance of dye contaminants in industrial textile wastewater and their potential impact on health and the environment. The study aims to investigate the efficiency of low-cost carbon adsorbents derived from coconut waste through a single-step carbonization process for removing dye from aqueous solutions. The preparation of carbon powder from agriculture coconut waste, including coconut husk, young coconut shell and mature coconut shell, involves carbonization in a vertical furnace with a capacity of 200 L at a temperature of 600ºC for four hours. The characteristics of the carbon adsorbents derived from coconut waste were compared with commercially activated carbon powder. The crystalline structure was analyzed by X-ray Diffractometer (XRD), while the surface morphology and elemental composition were examined with a Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometry (EDS). The results revealed that the carbon from coconut waste exhibited a carbon structure similar to commercial activated carbon. The surface morphology showed average surface pore size of 23.45±0.69, 4.72±0.17, 4.22±0.19, and N/A micrometers for coconut husk, young coconut shell, mature coconut shell and commercial activated carbon, respectively. Elemental analysis indicated that all the carbon materials mainly consisted of carbon and oxygen as the major components, with less than 2.84% impurities occurring in the carbonization process. The adsorption performance of methylene blue using carbon materials as adsorbents revealed that the suitable contact time was 15 minutes. The carbon waste from mature coconut shells and commercial activated carbon exhibited removal efficiencies of 94.78% and 97.38%, respectively. Despite a small difference in removal efficiency at 2.70%, indicating that the adsorption efficiency was similar to the commercial activated carbon. The pseudo-first-order reaction kinetics based on Lagergren's equation exhibited a similar value of 0.02968 min-1, comparable to the commercial activated carbon's value of 0.03775 min-1. However, efficient resource utilization focuses on the environmental, particularly in Chachoengsao Province. Additionally, efforts are being made to use low-cost waste materials from the community to be used as adsorbents for dye removal in wastewater treatment.

APA, Harvard, Vancouver, ISO, and other styles

8

Duan, Su Ming, Miao Jia, Ji Wei Hu, et al. "Optimization of Ultrasonic-Assisted Regeneration Process for Coconut Shell Activated Carbon Based on Response Surface Method." Advanced Materials Research 788 (September 2013): 450–55. http://dx.doi.org/10.4028/www.scientific.net/amr.788.450.

Full text

Abstract:

The single-factorial design of experiments and response surface methodology was applied to optimize ultrasonic-assisted regeneration of coconut shell activated carbon. With the pH values of the solution, solid-liquid ratio, irradiation time chosen as the independent variable and the activated carbon release of antimony as response values, the central composite design method was used to study each of the variables and their interactions on coconut shell activated carbon regeneration. The results of this study showed that: the optimum pH value was 13; solid-liquid ratio was 372 mL·g-1; irradiation time was 6.7 h. The average content of the release of Sb from the activated carbon was 6233.95 μg·g-1 under the optimum condition. Regeneration rate of the activated carbon was 84.45%. This demonstrated that the adsorption efficiency of Sb was close in regenerative carbon and the original carbon. The results proved that the ultrasonic-associated coconut shell activated carbon regeneration process was accurate and reliable, and can provide a reference for the regeneration of coconut shell activated carbon which had adsorbed Sb.

APA, Harvard, Vancouver, ISO, and other styles

9

Haryadi, Winarto, Muchalal Muchalal, and Robby Noor Cahyono. "PREPARATION OF ACTIVATED CARBON FROM SILK COTTON WOOD AND COCONUT SHELL BY PYROLISIS WITH CERAMIC FURNACE." Indonesian Journal of Chemistry 5, no. 2 (2010): 121–24. http://dx.doi.org/10.22146/ijc.21817.

Full text

Abstract:

Preparation of activated carbon from silk cotton wood and coconut shell has been done. Carbon was made by pyrolysis process in the Muchalal furnace with 3000 watt electric power. The electric power was increased gradually from 1000, 2000 and then 3000 watt with interval 2 hours during 7 hours. Carbon was activated in Muchalal furnace with 4000 watt electric power during 2 hours and flowed with nitrogen gas. Product of the activated carbon was compared to standart product with several analysis including the surface area, acetic acid adsorption, iod adsorption and vapour adsorption. The results of analysis showed that surface area for silk cotton wood carbon, coconut shell carbon, and E.Merck product were 288.8072 m2/g, 222.9387 m2/g and 610.5543 m2/g, respectively. Acetic acid adsorption for silk cotton wood carbon, coconut shell carbon, and standart product were 157.391 mg/g, 132.791 mg/g, and 186.911 mg/g, respectively. Iodine adsorption for cotton wood carbon, coconut shell carbon, and standart product were 251.685 mg/g, 207.270 mg/g and 310.905 mg/g, respectively. Vapour adsorption for cotton wood carbon, coconut shell carbon and standart product were 12%, 4%,and 14%., respectively Key words : Activated carbon, pyrolysis, Muchalal furnace

APA, Harvard, Vancouver, ISO, and other styles

10

Hakim, Lukman, Ramli Ramli, and Sugiyarto Sugiyarto. "Pemanfaatan Limbah Cangkang Kerang Kijing (Pilsbryoconcha Exilis) Sebagai Katalisatator Pada Proses Carburizing." Jurnal Inovasi Teknologi Terapan 2, no. 2 (2024): 371–76. https://doi.org/10.33504/jitt.v2i2.182.

Full text

Abstract:

Indonesia's natural products are very rich, including containing several types of animals, one of which is a clam that belongs to one type of shellfish. Mussel shells contain 39.55% calcium carbonate (CaCO3). The presence of calcium carbonate in the shell makes it possible to use it as a source of catalyst in the carburization process. Carburization adds carbon to the steel when heated to austenitic temperatures, causing the carbon to diffuse onto the steel surface. Low carbon steels with a carbon content of less than 0.3% are usually used in this process. Among the low-carbon steels widely used in industry, there is St 42 Steel, which has exceptional strength. Coconut shell charcoal is used as a catalyst. Coconut shell charcoal is one of the active carbon materials. Activated charcoal from coconut shell has low ash content, high reactivity and good solubility in water. The research method used is experimental. Steel ST 42 is used as the material. At the same time, the carburizing medium is activated carbon powder from coconut shell and shellfish powder by 10%, 20% and 30%, respectively, when heated for 3.6 and 9 hours.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Coconut shell activated carbon"

1

Hamid, Ku Halim Ku. "Production of activated carbon from Malaysian oil palm shell by chemical and physical methods." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322920.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hung, Jessica Joy. "The Production of Activated Carbon from Coconut Shells Using Pyrolysis and Fluidized Bed Reactors." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/243968.

Full text

Abstract:

A production plant was designed to produce 14.5 metric tons of activated carbon per day from coconut shells, in order to capture 2% of the projected market for activated carbon in air purification applications by 2014. The production process consists of a pyrolysis stage and an activation stage. A downdraft gasifier was utilized as the pyrolysis reactor in order to maximize the energy efficiency of the process, and a separate cyclone and condenser were added to capture and purify the valuable byproducts of the pyrolysis reaction. A fluidized bed reactor was utilized as the activation reactor, due to its superior heat and mass transfer properties over conventional reactors currently used in industry. An extensive heat exchanger network was implemented to capture and recycle the heat and water produced by the activation reaction, in order to minimize the plant’s thermal and water footprint. With an interest rate of 20%, the plant is expected to have a net present value of $43.8 million at the end of its ten-year lifetime. Due to the expected high product demand and anticipated profits, construction of the plant is strongly recommended.

APA, Harvard, Vancouver, ISO, and other styles

3

Vilella, Priscila Costa. "SÃntese e avaliaÃÃo de bioadsorventes na separaÃÃo de misturas contendo CO2 e CH4 para aplicaÃÃo em upgrade de biogÃs originado a partir de resÃduos sÃlidos orgÃnicos." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15705.

Full text

Abstract:

A geraÃÃo de ResÃduos SÃlidos Urbanos (RSU) vem aumentando a cada ano no PaÃs, sendo a fraÃÃo orgÃnica normalmente responsÃvel por mais da metade da quantidade total de RSU gerada. Entre as alternativas existentes para o aproveitamento dos resÃduos sÃlidos orgÃnicos, destaca-se a digestÃo anaerÃbia, uma soluÃÃo atrativa, tendo em vista que hÃ produÃÃo de biogÃs durante o processo. Entretanto, para que suas possibilidades de aplicaÃÃo sejam mais abrangentes, Ã necessÃrio que o biogÃs seja purificado e posteriormente submetido a um processo de upgrade, a fim de que adquira caracterÃsticas similares ao do gÃs natural. O presente trabalho teve como objetivo sintetizar Carbonos Ativados (CAs) a partir de endocarpo de coco seco (Cocos nucifera), de coco babaÃu (Orbignya speciosa) e a partir de vagem de flamboyant (Delonix regia) por meio de ativaÃÃo com diÃxido de carbono em Ãnica etapa. As caracterÃsticas texturais das amostras foram determinadas por meio de isotermas de adsorÃÃo de N2 a -196 ÂC. Os maiores valores de Ãrea superficial especÃfica e volume de microporos foram obtidos para o bioadsorvente sintetizado a partir do coco seco, com valores de 1452 m2/g e 0,60 cm3/g, respectivamente. Foram selecionados os CAs de coco seco e de coco babaÃu para a anÃlise de suas eficiÃncias na separaÃÃo de misturas CO2/CH4 para aplicaÃÃo no upgrade de biogÃs. Para tanto, ensaios de equilÃbrio de adsorÃÃo dos componentes puros (CO2 e CH4) e da mistura (30% vol. CO2, 70% vol. CH4) foram realizados a 20 ÂC utilizando uma balanÃa de suspensÃo magnÃtica. A capacidade de adsorÃÃo de CO2 pouco se diferenciou entre as duas amostras, apresentando o CA de coco seco melhores resultados. Essa amostra apresentou valores bem maiores de captura de metano a pressÃes acima de 3,0 bar. Os dados experimentais foram comparados com os obtidos pelo ajuste do modelo de TÃth e da IAST (Teoria da SoluÃÃo Adsorvida Ideal) para os dados mono e multicomponentes, respectivamente. Os ajustes de TÃth foram bastante precisos, enquanto os da IAST se adequaram moderadamente. As seletividades das amostras para o CO2 em relaÃÃo ao CH4 foram determinadas e comparadas com a de outros adsorventes comerciais. O CA do coco seco apresentou resultados melhores que o coco babaÃu a baixas pressÃes, com valor de seletividade de 4,2 a 1,0 bar, indicando ser um material competitivo para a aplicaÃÃo proposta.<br>The generation of Municipal Solid Waste (MSW) is increasing every year in Brazil, being the organic matter responsible for more than half of the total MSW generated. Among the current alternatives to the use of organic solid waste, the anaerobic digestion is the most attractive as biogas production occurs in the process. Nevertheless, to increase its usage possibilities, biogas has to be purified and upgraded, in order to acquire characteristics similar to that of natural gas. The present work aims to prepare activated carbons (ACs) from coconut endocarp (Cocos nucifera), babassu coconut (Orbignya speciosa) and flamboyant pods (Delonix regia) by one step CO2 activation. The textural characteristics were determined by N2 adsorption isotherm at -196 ÂC. The best results of BET surface area and micropore volume were obtained for bioadsorbent synthesized from coconut shell, with values of 1452 m2/g and 0.6 cm3/g, respectively. ACs from coconut shell and babassu coconut were selected to analyze their efficiency in CO2/CH4 separation mixture for biogas upgrading application. Therefore, pure component (CO2 and CH4) and mixture (30% vol. CO2, 70% vol. CH4) adsorption equilibria were performed at 20 ÂC using a magnetic suspension balance. The CO2 adsorption capacity slightly differed between samples, presenting the AC from coconut shell better results. This sample had higher methane uptake above pressures of 3.0 bar. The experimental data were compared with the fit of Toth and IAST (Ideal Adsorbed Solution Theory) models for mono and multicomponent data, respectively. The Toth fitting was fairly accurate, while the IAST fit was moderate. The samples selectivity to CO2 over CH4 were calculated and compared with another commercial adsorbent. The AC from coconut shell presented better results than babassu coconut at low pressures, with a selectivity value of 4.2 at 1.0 bar, indicating to be a competitive material for the proposed application.

APA, Harvard, Vancouver, ISO, and other styles

4

Bezerra, Alexandre Freire. "Carvão ativado de endocarpo de Coco da Baía produzido em forno micro-ondas." Universidade Federal da Paraíba, 2012. http://tede.biblioteca.ufpb.br:8080/handle/tede/5357.

Full text

Abstract:

Made available in DSpace on 2015-05-08T14:59:48Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2106593 bytes, checksum: ab15bacf25992ba8bafb4cdeb1c81ec6 (MD5) Previous issue date: 2012-09-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Activated carbon, AC, is a pure state carbon with large porosity, which adsorbs molecules or ions from a fluid medium. In general, it is obtained from the controlled burning of agricultural or industrial by-products. When produced in conventional furnaces, the operating temperatures may rise up to 900°C, resulting in yields inferior to 20 %. The low yield is a consequence of the precursor's large thermal degradation caused by the heat wave front which moves slowly from the surface to its core. Therefore, there is a significant formation of meso and macropores, which lead to a final value of density, ρ, below of 0.5 g.cm-3. On the other hand, thermal degradation caused by microwaves is less aggressive. The heating process occurs from the core of the precursor to its exterior. As a consequence the activated carbons are denser, have a more selective microporosity, and are more suitable to gas storage. This paper reports the preparation and the results of the qualitative analysis of physically and chemically activated carbons, from coconut shell, using an adapted microwave oven. This adapted microwave allows the settling down of temperature programs' ramp and heating rates. The BET surface area of activated carbons prepared in the microwave oven surpassed 1200 m2.g-1, the apparent density situated at around 0.5 g.cm-3, and the yields remained above 40 %. Comparisons between the electricity consumption of the electrical conventional kiln and of the micro-wave oven in producing a certain quantity of an activated carbon with a BET surface area over 800 m2/g, showed that the use of the microwave oven had allowed, each time, a reduction of about 3,2 kW.h, which represents an average of electricity saving of 85.5 %.<br>Carvão ativado, CA, é uma forma de carbono puro de grande porosidade, que adsorve moléculas ou íons de um meio fluido. É obtido a partir da queima controlada de precursores, geralmente, subprodutos de baixo custo, oriundos da agricultura, ou da indústria. Quando produzido em fornos convencionais, as temperaturas de trabalho podem ser superiores a 900 °C, reduzindo a menos de 20 % a massa de carvão produzida com relação à do precursor (rendimento). Isto se dá em virtude da grande degradação ocasionada pela frente de calor destes fornos, que lentamente se desloca da superfície ao núcleo da massa do precursor. Em consequência, via de regra, a massa específica final, ρ, registra valores abaixo de 0,5 g.cm-3. No caso das micro-ondas a degradação térmica da matéria se dá, de forma menos agressiva, do interior do precursor para o exterior, proporcionando carvões ativados mais densos, com microporosidade mais seletiva, e, logo, mais adequada ao armazenamento de gás. O presente trabalho relata a obtenção de carvões ativados, por via física e química, a partir do endocarpo do coco da baía, em um forno micro-ondas adaptado, onde é possível se programar rampas de temperaturas e razões de aquecimento. Avalia-se o consumo de energia elétrica do forno micro-ondas adaptado em relação ao do forno elétrico convencional. A área superficial de BET dos carvões química e fisicamente preparados foi superior a 1200 m2.g-1, a massa específica manteve-se próximo a 0,5 g.cm-3, e os rendimentos ficaram acima de 40 %. Ao se comparar o consumo de energia elétrica para produzir, tanto no forno convencional como no micro-ondas, uma determinada quantidade de carvão ativado, com área de BET superior a 800 m2/g, verificou-se que a redução gerada pelo micro-ondas foi de aproximadamente 3,2 kW.h, representando um percentual de economia de energia de 85,5 %.

APA, Harvard, Vancouver, ISO, and other styles

5

Tsolele, Refiloe. "Preparation, modification and characterization of activated carbon derived from Macadamia nutshells and its adsorption rate and capacity for Au(CN)2- compared to commercially prepared coconut shells." Thesis, Vaal University of Technology, 2017. http://hdl.handle.net/10352/458.

Full text

Abstract:

M. Tech (Department of Chemistry, Faculty of Applied and Computer Sciences), Vaal University of Technology.<br>Activated carbons have been produced from various carbonaceous source materials including nutshells, peat, wood, coir, lignite, coal and petroleum pitch and the produced carbons have been used for adsorption of inorganic and organic compounds from numerous matrices. Activated carbons are characterized by large surface area and high degree of microporosity. The ability of activated carbon to adsorb gold from solutions, which is present in very low concentrations while loading to fairly high concentrations, has made it an attractive material for the concentration of gold from dilute solutions. Consequently, the use of activated carbons for the recovery of gold from cyanide-leached liquors has gained wide acceptance in the mining industry. However, the price of commercially prepared carbons, the time taken for them to arrive, the breakage of the carbon during transportation and the interest in utilization of various local wastes for the generation of adsorbents has led to a search of more cost effective and time friendly source for the activated carbons. The focus of this research was to conduct a study in which a comparison was conducted between untreated coconut shell derived activated carbon (CAC) and Macadamia nutshell derived activated carbon (MAC) for the adsorption of gold. These activated carbons were modified with HNO3 and H3PO4 to increase their surface adsorption properties. This was done in order to explore if these activated carbons prepared from Macadamia shells could be an attractive alternative or a complementary supplement to the coconut shell based carbons that are currently being used in the gold extraction industry. The modification of the commercially prepared Macadamia activated carbons was done with 3 different concentrations for both nitric acid and phosphoric acid. The modified activated carbons were labelled MACP20%, MACP40% and MACP60%, to signify the materials prepared from 20% (v/v) H3PO4, 40% (v/v) H3PO4 and 60% (v/v) H3PO4 , respectively . Same labelling was used for 20% (v/v) HNO3, 40% (v/v) HNO3 and 55% (v/v) HNO3 modifications to correspond to MACN20%, MACN40% and MACN55%, respectively. Also, untreated coconut shell derived activated carbon (CAC) and Macadamia nutshell derived activated carbon (MAC) were investigated for gold adsorption for comparison purposes. All the activated carbons prepared in the iii | P a g e study were characterized with Brunauer-Emmet-Teller (BET), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Thermo gravimetric analysis (TGA), elemental analysis (EL) and X-ray diffraction spectroscopy (XRD). The physical properties of the activated carbons were done by determining attrition, ash content, volatile matter, and moisture content of all the activated carbons. Various parameters that affect selective adsorption such as the effect of initial concentration, time, agitation speed, interfering species, and dose of the adsorbent were investigated. Optimal parameters for gold ion adsorption were as follows: solution pH, 10; contact time, 6 h; agitation speed 150 rpm; sorbent amount 4 g and 5.5 ppm for initial concentration of gold. The observed selectivity order was not the same for all the adsorbents but the adsorption of gold was found to be mostly influenced by the presence of nickel and least influenced by copper. The MACP60% was found to be the most effective from the three concentrations investigated for the phosphoric acid modified activated carbons yet proved to have lower adsorption capabilities compared to CAC. The MACN55% was found to be the most efficient and displayed similar adsorption capabilities to those of CAC.

APA, Harvard, Vancouver, ISO, and other styles

6

Ozsin, Gamzenur. "Production And Characterization Of Activated Carbon From Pistachio-nut Shell." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612892/index.pdf.

Full text

Abstract:

In this study production and characterization of activated carbon from an agricultural waste, pistachio-nut shells, was investigated. To determine optimum production conditions by chemical activation method, effect of tempreature (300, 500, 700 and 900 oC) and effect of impregnation ratio (1:1, 2:1 and 3:1 as activation agent:sample) were investigated by applying two different methods (raw material activation and char activation) and with two different activation agents (phosphoric acid and potassium hydroxide). To produce activated carbon, all the impregnated samples were heated to the final activation temperature under a continuous nitrogen flow (100 cm3/min) and at a heating rate of 10 oC/min and were held at that temperature for 1 hour. Pore structures of activated carbons were determined by N2 adsorption and micro-mesopore analysis was made by &ldquo<br>Non-local Density Functional Theory&rdquo<br>and &ldquo<br>Monte Carlo Simulation&rdquo<br>method (NLDFT-Monte Carlo Simulation Method). BET surface areas of produced activated carbons were found from N2 adsorption data in the relative pressure range of 0.01 to 0.15. BET surface areas of phosphoric acid activated carbons by raw material activation method were found between 880 and 1640 m2/g. The highest value of the BET surface area was obtained in the case of the activated carbon which was produced with an impregnation ratio of 3/1 (g H3PO4/g raw material), at an activation temperature of 500 oC. The repeatibility was also investigated on phosphoric acid activated carbons which were produced with conventional raw matererial activation method. Results showed that, both the BET surface area values and pore size distributions were consistent among themselves. On the other hand char activation experiments with phosphoric acid produced activated carbons having lower BET surface areas than the ones obtained with raw material activation method by creating mesoporous structure. When the same char activation method was tried with potassium hydroxide, it was concluded that elevated temperatures could help in producing activated carbons with high BET surface areas by creating microporous structure. Results also showed that properties of activated carbon such as ash content, slurry pH value, true density, elemental composition, methylene blue number and surface morphology were strongly affected by both production conditions and production method, as pore structure was affected considerably.

APA, Harvard, Vancouver, ISO, and other styles

7

González, García-Cervigón Maria Inmaculada. "Adsorption and oxidation of NO to NO2 over a renewable activated carbon from coconut." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13678.

Full text

Abstract:

The NOx health and environmental problems make necessary to reduce this gaseous emission from different sources. Furthermore, its increase in the last years and the difficulties to remove it with after-treatment systems already in the market make more urgent the development of new techniques. The purpose of this investigation is to study the low temperature catalytic oxidation of NO to NO2 and its adsorption over a renewable activated carbon (AC) from coconut shell. The present research presents the results of experimental work carried out using a laboratory scale reactor to investigate the low temperature catalytic oxidation of NO. Activated carbon was housed in the reactor and tests were carried out with different reactor sizes, different activated carbon forms and shapes, different gas mixtures at different temperatures and different levels of humidity to simulate dry and wet particulate-free diesel engine exhaust gas. The effects of addition of ozone in the gas on the NO oxidation were also explored. Gas analysis upstream and downstream of the catalytic reactor was carried out in all cases during the charge and regeneration of the AC. An extensive literature review in conjunction with measurement of some properties of the activated carbon helped to understand better its characteristics and behaviour. The results of this study indicate that in the case of dry gas, the activated carbon initially acts as an adsorber and only after operation of several hours, the NO oxidation that takes place in the reactor results in increased NO2 levels in the product gas. The NO conversion is affected by the activated carbon form and reaction conditions including temperature, humidity, oxygen, NO, CO2 content in the inlet gas, temperature, space velocity, linear gas velocity, residence time, reactor shape, AC pretreatment and lifespan. Water vapour has a detrimental effect on the conversion of NO to NO2 before the AC reaches the steady-state conditions. On the other hand, ozone is effective in converting NO to NO2 at room temperature. This research has developed some findings not studied or reported by other researches before and confirms and/or complements results reported in the literature review by other groups, which will benefit the development of a renewable after-treatment system of NOx emissions.

APA, Harvard, Vancouver, ISO, and other styles

8

Daud, Wan Mohd Ashri Wan. "Production and characterisation of activated carbon from Malaysian oil palm shell." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389601.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Cuhadar, Cigdem. "Production And Characterization Of Activated Carbon From Hazelnut Shell And Hazelnut Husk." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606430/index.pdf.

Full text

Abstract:

In this study, the pore structures and surface areas of activated carbons produced from hazelnut shell and hazelnut husk by chemical activation technique using phosphoric acid (H3PO4), at relatively low temperatures (300, 400 and 500oC), were investigated. Raw materials were impregnated with different H3PO4 solutions of 30%, 40%, 50% and 60% by weight. To produce activated carbon, acid impregnated samples were heated<br>at a heating rate of 20 oC/min to the final carbonization temperature and held at that temperature for 2 hours. The volume and surface areas of mesopores (2-50 nm) and BET surface areas of the samples were determined by N2 gas adsorption technique at -195.6oC. The pore volume and the area of the micropores with diameters less than 2 nm were determined by CO2 adsorption measurements at 0oC by the application of Dubinin Radushkevich equation. N2 (BET) surface areas of the hazelnut shell and hazelnut husk based activated carbons were in the range of 242-596 m2/g and 705-1565 m2/g, respectively. CO2 (D-R) surface areas of the hazelnut shell and hazelnut husk based activated carbons were in the range of 433-576 m2/g and 376-724 m2/g, respectively. The highest BET surface area was obtained as 596 m2/g among hazelnut shell based samples (HS 60.4<br>shell impregnated with 60 wt.% H3PO4, carbonized at 400 &ordm<br>C) and as 1565 m2/g among hazelnut husk based samples (HH 40.4<br>husk impregnated with 40 wt.% H3PO4, carbonized at 400 &ordm<br>C). Hazelnut shell based activated carbons were mainly microporous while hazelnut husk based ones were mesoporous.

APA, Harvard, Vancouver, ISO, and other styles

10

Bruze, Amanda. "A comparison of nutrient reduction between activated carbon and cocout fibre in wastewater treatment." Thesis, Högskolan Kristianstad, Sektionen för lärande och miljö, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-17211.

Full text

Abstract:

Two batch mesocosms were created on site in Da Nang, Vietnam to reduce nutrients in wastewater from fish processing factories. The mesocosms contained either activated carbon or coconut fibre which in earlier studies has shown promising results in wastewater treatment. Three aspects of the materials were compared; Chemical content, which measured levels of COD, total-nitrogen and total-phosphorus. Rate of biofilm formation, where biofilm were measured visually and through weight. The last aspect was microbiological presence where fours species of microorganisms were cultivated. The experiment showed no obvious difference between the materials but concludes that this is an experiment that could and should be developed further.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Coconut shell activated carbon"

1

Sulaiman, Yusri. The application of coconut shell activated carbon for water treatment: (characterisation studies). University of Birmingham, 1998.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Halim, Iskandar. Adsorption study of shell catenex oil-11 in water solution onto powdered activated carbon type darco in a closed stirred batch vessel. UMIST, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Duff, A., and P. Reupke. Review of the Activated Carbon Industry & Scope for Oil Palm Kernel Shell as a Raw Material. Hyperion Books, 1993.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Coconut shell activated carbon"

1

Lawal, Ibrahim Mohammed, Usman Bala Soja, Abdulhameed Danjuma Mambo, et al. "Adsorption of Abattoir Wastewater Contaminants by Coconut Shell-Activated Carbon." In Advances in Science, Technology & Innovation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26580-8_22.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Thangadurai, Tavayogeshwary, and Ching Thian Tye. "Coconut Shell-Based Activated Carbon Supported Metal Oxides in Catalytic Cracking Activity." In Biofuel Technologies for a Sustainable Future: India and Beyond. River Publishers, 2023. http://dx.doi.org/10.1201/9781003338321-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Dar, Firdous Ahmad, Akshit Kumar, Muzammil Hussain, Jatin Sotra, and Swamy Kurella. "Adsorption of Fluoride from Wastewater with the Activated Carbon Derived from Coconut Shell." In Springer Proceedings in Earth and Environmental Sciences. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-64006-3_23.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Das, Dipa, Debi Prasad Samal, and B. C. Meikap. "Removal of CO2 in a Multistage Fluidized Bed Reactor by Activated Carbon Prepared from Green Coconut Shell." In Recent Advances in Chemical Engineering. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1633-2_15.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Ma, Aiyuan, Chenyu Sun, Guojiang Li, et al. "Kinetic Studies for the Absorption of Organic Matter from Purified Solution of Zinc by Coconut Shell Activated Carbon." In Characterization of Minerals, Metals, and Materials 2016. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48210-1_37.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ma, Aiyuan, Chenyu Sun, Guojiang Li, et al. "Kinetic Studies for the Absorption of Organic Matter from Purified Solution of Zinc by Coconut Shell Activated Carbon." In Characterization of Minerals, Metals, and Materials 2016. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119263722.ch37.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Yadav, Alok Kumar, Umesh Chandra Sharma, Kurakula Rakshitha, and Sourav Maity. "Production of Activated Carbon from Coconut." In Recent Advances in Activated Carbon. CRC Press, 2024. https://doi.org/10.1201/9781003488606-13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Ghani, Wan Azlina Wan Ab Karim, Nur Zalikha Rebitanim, Mohamad Amran Mohd Salleh, and Azil Bahari Alias. "Carbon Dioxide Adsorption on Coconut Shell Biochar." In Progress in Clean Energy, Volume 1. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16709-1_50.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Soleimani, Hassan, Jemilat Yetunde Yusuf, Noorhana Yahya, Amir Reza Sadrolhosseini, Maziyar Sabet, and Lawal Adebayo Lanre. "Microwave Absorption of Coconut Wasted Derived Activated Carbon." In Proceedings of the 6th International Conference on Fundamental and Applied Sciences. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4513-6_28.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Yusop, Mohamad Firdaus Mohamad, Nasehir Khan E. M. Yahaya, Jamilah Karim, Muhammad Azroie Mohamed Yusoff, Ahmad Zuhairi Abdullah, and Mohd Azmier Ahmad. "Activated Carbon Adsorbent Using Desiccated Coconut Residue for Removing Methylene Blue Dye." In Green Energy and Technology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1695-5_20.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Coconut shell activated carbon"

1

Oreofe, Toyin A., Adejumoke A. Inyinbor, Olugbenga S. Bello, and Oladipupo O. Ogunleye. "Adsorption Isotherm, Kinetics and Thermodynamics studies on Chloroquine sequestration using coconut shell activated carbon." In 2024 International Conference on Science, Engineering and Business for Driving Sustainable Development Goals (SEB4SDG). IEEE, 2024. http://dx.doi.org/10.1109/seb4sdg60871.2024.10629925.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Li, Fenrong, Honghong Yi, Xiaolong Tang, Ping Ning, and Qiongfen Yu. "Adsorption of Carbon Dioxide on Coconut Shell Activated Carbon." In 2010 International Conference on Management and Service Science (MASS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icmss.2010.5577444.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Budi, E., H. Nasbey, B. D. P. Yuniarti, Y. Nurmayatri, J. Fahdiana, and A. S. Budi. "Pore structure of the activated coconut shell charcoal carbon." In 3RD INTERNATIONAL CONFERENCE ON THEORETICAL AND APPLIED PHYSICS 2013 (ICTAP 2013). AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4897121.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Budi, Esmar, Umiatin, Hadi Nasbey, Ridho Akbar Bintoro, Futri Wulandari, and Erlina. "Activated coconut shell charcoal carbon using chemical-physical activation." In 2ND PADJADJARAN INTERNATIONAL PHYSICS SYMPOSIUM 2015 (PIPS-2015): Materials Functionalization and Energy Conservations. AIP Publishing LLC, 2016. http://dx.doi.org/10.1063/1.4941886.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Wahyuni, Nelly, Erma Mayuni, and Nurlina. "Pb(II) adsorption efficiency by magnetic activated carbon from activated coconut shell." In PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON CHEMICAL PROCESSING AND ENGINEERING (4th IC3PE). AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0204789.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

HU, ZHONGHUA, M. P. SRINIVASAN, YAMING NI, and XIANFA SHI. "MESOPOROUS HIGH-SURFACE-AREA ACTIVATED CARBON PRODUCED FROM COCONUT SHELL." In Proceedings of the Second Pacific Basin Conference. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812793331_0054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Abdullah, Nurjannah Oktorina, Achmad Zubair, Kartika Sari, and Muhammad A’raaf Nursyawal. "Effectiveness of coconut shell activated carbon for decreasing water salinity." In THE PROCEEDINGS OF THE 4TH EPI INTERNATIONAL CONFERENCE ON SCIENCE AND ENGINEERING (EICSE) 2020. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0095209.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Kevin, D. A., V. J. Aimikhe, and C. C. Ikeokwu. "A Machine Learning Approach to Determining the CO2 Adsorption Capacity of Coconut Shell-Derived Activated Carbon." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/221740-ms.

Full text

Abstract:

Abstract Coconut shell-derived activated carbon is widely used for the adsorption of gaseous contaminants including CO2 capture applications due to its availability, low costs, high surface area and tunable porous structure. However, determining the adsorption capacity of activated carbons through experimentation is challenging due to time constraints and the required equipment and experimental costs. This study aimed to develop a machine-learning model correlating the pore size distribution, pore volume, surface area, temperature, and pressure of activated carbons to their CO2 adsorption capacity. The Cochran model was used to determine the minimum number of data samples required to perform an unbiased representative analysis. Consequently, over 100 published coconut shell–derived activated carbon samples were collected from the open literature. A decision tree and linear regression model were developed to relate the pore volumes, pore diameter in different size intervals, surface area, temperature, and pressure to the maximum CO2 adsorption capacity. The model achieved good predictive accuracy with the decision tree regressor mean absolute error (MAE) of 4.49 on the test set. This data-driven machine learning model can be useful for predicting CO2 capacities based on synthesized pore structures and can become a useful tool for determining first estimates of CO2 adsorption capacity of coconut shell-derived activated carbon. The approach demonstrated here can be extended to model the adsorption of other gases on microporous carbons and utilized for software applications.

APA, Harvard, Vancouver, ISO, and other styles

9

Gupta, Suneet, and Gagan Deep. "Agricultural waste based-coco peat and coconut shell activated carbon microwave absorber." In 2016 IEEE MTT-S International Microwave and RF Conference (IMaRC). IEEE, 2016. http://dx.doi.org/10.1109/imarc.2016.7939621.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Galdino, Wendell, Jean Silva, Diogo Santos, Alexandre Freire Bezerra, Adriano Sitônio Rumão, and Emerson Jaguaribe. "ACTIVATION TIME EFFECT ON ACTIVATED CARBON FROM COCONUT SHELL TO ENHANCE CO2 ADSORPTION." In 24th ABCM International Congress of Mechanical Engineering. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobem2017.cob17-1340.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!