Study of cherry stones as raw material in preparation of carbonaceous adsorbents

Durán‐Valle, Carlos J.; Gómez-Corzo, Manuel; Pastor-Villegas, J.; Gómez-Serrano, V.

doi:10.1016/j.jaap.2004.10.004

Cited by 106 publications

(56 citation statements)

References 16 publications

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“…This fits well with the larger fixed carbon content in the sugarcane in natura feedstock. The molar elementary compositions ( Table 2) are in agreement with the reported data for other bio-oils, although the carbon and nitrogen contents are slightly higher and the oxygen content is bellow the reported average [19,22,23].…”

Section: Resultssupporting

confidence: 88%

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

Durange¹,

Santos²,

Pereira³

et al. 2013

JBNB

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Under the renewable energy context, sugarcane biomass pyrolysis has been growing as a convenient route to produce bio-oil, which can be set into the chemical industry and refineries as building blocks or combustion fuel. In this work sugarcane straw was submitted to direct pyrolysis in a fluidized bed pilot plant at 500˚C, in presence of air. Sugarcane in natura was also pyrolysed as a model for comparison, in order to determine the viability of processing different sources of raw biomass. The physicochemical characterization of the biomass precursors as well as of the bio-oils was also carried out, which points both biomass feedstocks as suitable for bio-oil production in terms of viscosity, surface tension, density and acidity. The bio-oil obtained from sugarcane in natura presented higher carbon and hydrogen content as well as lower oxygen content. On the other hand, the metal content is higher in the bio-oil obtained from sugarcane straw, in special the iron and potassium contents were 807 ppm and 123 ppm against 27 ppm and 1 ppm in the bio-oil from sugarcane in natura. Aliphatic and aromatic compounds as well as carbohydrates scaffolds were identified as the main components of the bio-oil. GC-MS analyses showed aromatic products from lignine fragmentation and free sugars and sugar derivatives.

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Section: Resultssupporting

confidence: 88%

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

Durange¹,

Santos²,

Pereira³

et al. 2013

JBNB

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“…polar lipids, in the oil of OS (Mahmud et al 2006). Volatile matter was abundant in OS, being similar to the level reported for cherry stones (Durán-Valle et al 2005). The cellulose content was low but higher than that of hemicellulose or lignin.…”

Section: Chemistry Of Raw and Carbonized Orange Seedsupporting

confidence: 78%

“…Two further bands at 1700-1600 cm -1 may be assigned to stretching C=C vibrations (Durán-Valle et al 2005). For the carbonized samples, a band over the wavenumber range 1650-1550 cm -1 (C-H stretching) was also evident.…”

Section: Chemistry Of Raw and Carbonized Orange Seedmentioning

confidence: 91%

Use of Wide-Pore Carbons to Examine Intermolecular Interactions during the Adsorption of Anthraquinone Dyes from Aqueous Solution

Elizalde-González

Hernández‐Montoya

2009

Adsorption Science & Technology

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Carbon samples with low specific surface areas containing both mesopores and macropores were prepared by heating orange seeds to 450, 600, 800 and 1000 ºC, respectively. These materials were characterized by ultimate and proximate analysis, thermogravimetry, IR spectroscopy and potentiometric titrations. The raw (unheated) material was acidic, containing a considerable amount of nitrogen but only a small amount of lignin. The carbon samples were basic and exhibited type II or type III nitrogen adsorption isotherms depending on the carbonization temperature. Non-carbonized orange seeds were more effective in the adsorption of anthraquinone dyes (Acid Blue 80, Acid Blue 324, Acid Green 25 and Acid Green 27) from aqueous solution at 25 ºC. The moderate adsorption capacities exhibited by the carbonized samples allowed an analysis of the intermolecular interactions between the adsorbents and dyes with similar structures but slightly different hydrophobicities and donor capacities.

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“…The moisture content was determined using the oven-drying test method, while the ash content was determined by subjecting the samples to heating for 8 h at 650 °C until a consistent mass was obtained. The fixed carbon was estimated by the difference, in accordance with Durán-Valle et al (2005), as follows:…”

Section: Characterizationmentioning

confidence: 99%

Equilibrium Isotherm, Kinetic, and Thermodynamic Studies of Divalent Cation Adsorption onto Calamus gracilis Sawdust-Based Activated Carbon

Adebisi¹,

Chowdhury²,

Hamid³

et al. 2017

BioResources

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Activated carbon (RSAC) was prepared using the two steps of hydrothermal carbonization (HTC) and chemical activation from the sawdust of Calamus gracilis, commonly known as Rattan (RS). The HTC process was carried out using a Teflon-lined autoclave to produce hydrochar, followed by chemical activation using phosphoric acid (H3PO4). The highest removal percentage obtained for lead, Pb(II), and zinc, Zn(II), cations were 86.71% and 64.26%, respectively, using the initial adsorbate concentration of 350 mg/L at 30 °C. These values strongly indicated the promising adsorption potential of the newly prepared hydrochar-based activated carbon (RSAC) for the better management of industrial wastewater and effluents. The analysis of the equilibrium sorption data revealed that these adsorptions followed the Langmuir isotherm model and the pseudo-second order kinetic model. The adsorption process was endothermic and spontaneous. The prepared carbon (RSCAC) showed enhanced surface area with porous texture, which could effectively aid for elimination of Pb(II) and Zn(II) cations from waste water.

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Study of cherry stones as raw material in preparation of carbonaceous adsorbents

Cited by 106 publications

References 16 publications

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

Use of Wide-Pore Carbons to Examine Intermolecular Interactions during the Adsorption of Anthraquinone Dyes from Aqueous Solution

Equilibrium Isotherm, Kinetic, and Thermodynamic Studies of Divalent Cation Adsorption onto Calamus gracilis Sawdust-Based Activated Carbon

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