adsorption isotherms
Application of mathematical models for the prediction of adsorption isotherms in solid mixture for mango powder refreshment
... the adsorption isotherms, where a w varies from ...of isotherms is the one used as solvent of compounds, and it is linked by weak forces of capillary or osmotic ...
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Modeling of Drying and Adsorption Isotherms of the Fish Feed
... equilibrium isotherms of certain products may be determined by using experimental data or estimated data by non-linear models found in the ...adsorptions isotherms of acerola pulp applying BET, GAB, Oswin, ...
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Analysis of adsorption isotherms of Cu(II), Ni(II), Pb(II) and Zn(II) by N-(3,4-dihydroxybenzyl) chitosan using nonlinear regression method.
... OF ADSORPTION ISOTHERMS OF Cu(II), Ni(II), Pb(II) AND Zn(II) BY N-(3,4- DIHYDROXYBENZYL) CHITOSAN USING NONLINEAR REGRESSION ...METHOD. Adsorption of Cu(II), Ni(II), Pb(II) and Zn(II) ions from ...
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Study of adsorption isotherms of green coconut pulp
... the adsorption isotherms of green coconut pulp and determine its isosteric heat of ...he adsorption isotherms at temperatures of 30, 40, 50, 60, and 70 °C were analyzed, and they exhibit type ...
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Water adsorption isotherms of coffee blends / Isotermas de adsorção de água em blends de café
... This work aimed to evaluate the adsorption isotherms of roasted and grinded coffee, in different blends and storage temperatures. Crude grain coffee of two species were used: arabica (Coffea arabica) and ...
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WATER ADSORPTION ISOTHERMS AND ISOSTERIC SORPTION HEAT OF SPRAY-DRIED AND FREEZE-DRIED DEHYDRATED PASSION FRUIT PULP WITH ADDITIVES AND SKIMMED MILK
... the isotherms of pure passion fruit pulp powder (PP) and additives have shown the same qualitative behavior, considerable differences in the values of equilibrium moisture content for the studied samples was ...
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Effect of drying method on the adsorption isotherms and isosteric heat of passion fruit pulp powder
... sorption isotherms are useful to determine and compare thermodynamic properties of passion fruit pulp powder processed by diferent drying ...higher adsorption capacity than that of the other ...higher ...
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Braz. J. Chem. Eng. vol.31 número1
... 3+ adsorption kinetics were slower than for Ni 2+ in both mono-component and binary ...of adsorption stages of each metallic ion: Cr 3+ uptake presented three adsorption stages, whereas for Ni 2+ ...
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J. Braz. Chem. Soc. vol.26 número2
... nodes on the PDMS chains and linked the functional groups. Thermogravimetric analysis (TGA) of the product indicated high thermal stability with an initial weight-loss temperature around 450 K. The capacity for the ...
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COMPARATIVE STUDY FOR ADSORPTION OF HYDROGEN-METHANE MIXTURES ON ACTIVATED CARBON AND 5A MOLECULAR SIEVE
... involving adsorption, the important factor is the adsorption per unit bulk volume of adsorbent rather than mass of adsorbent, since bulk volume determines the size of the ...sieve adsorption ...
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COMPETITIVE ADSORPTION OF DYE SPECIES ONTO BIOMASS NANOPOROUS CARBON IN SINGLE AND BICOMPONENT SYSTEMS
... The adsorption of orange II (OII) and acid chrome blue K (ACBK) from aqueous solutions in single and binary dye systems by four types of BNCs were studied in a batch adsorption ...The adsorption ...
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Modelling the effect of temperature on the water sorption isotherms of chitosan films
... multilayer adsorption, a monolayer strongly attached to the chains of the material, and the subsequent layers thermodynamically tend to behave in the same way, however, different from the monolayer and with ...
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SOIL AND PLANT NUTRITION - Article
... of adsorption isotherms in soil profiles having a history of application of phosphate fertilizers and cultivated with apple ...(P adsorption) besides P chemical ...
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Study of thermodynamic water properties and moisture sorption hysteresis of mango skin
... between adsorption isotherms and desorption isotherms of mango skin at temperatures of 20, 26, 33, 38 and 44 °C are shown in Figure ...sorption isotherms curves follow the type III isotherm ...
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Adsorbent Particle Design for Application in Gas Adsorption Processes
... gas adsorption manometry or as the BET volumetric method, is based on the measurement of the gas pressure in a calibrated, constant volume (at constant temperature) ...determine adsorption isotherms ...
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J. Braz. Chem. Soc. vol.28 número1
... desorption isotherms (Figure 4) were determined according to the procedure used for the adsorption isotherms and represent the amount of SCP still adsorbed per gram of soil as a function of the ...
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Braz. J. Chem. Eng. vol.26 número1
... for adsorption isotherms of microalgae Spirulina were investigated at 10, 20 and 30°C and for desorption, at 40, 50 and 60°C, using the gravimetric static ...sorption isotherms obtained from the ...
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Synthesis of Chelating Agent Free-Solid Phase Extractor (CAF-SPE) Based on New SiO2 Al2O3 SnO2 Ternary Oxide and Application for Online Preconcentration of Pb 2+ Coupled with FAAS
... gas adsorption instrument was ...nitrogen adsorption isotherms according to the Brunauer-Emmett-Teller (BET) multipoint method and the average pore diameter as well the pore volume were determined ...
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Braz. J. Chem. Eng. vol.28 número4
... samples presented the XRD patterns of a typical MCM-41 hexagonal P6mm structure, with five diffractions peaks being distinguished. Additionally, the nitrogen adsorption isotherms indicated that a uniform ...
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Enthalpy-entropy compensation based on isotherms of mango
... IGLESIAS & CHIRIFE [9] compared the isosteric heats of water adsorption and desorption for a large number of foods. In general, heats of desorption were significantly higher than adsorption at low ...
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