Results 51 to 60 of about 3,683 (204)

Isosteric Heat: Comparative Study between Clausius–Clapeyron, CSK and Adsorption Calorimetry Methods [PDF]

open access: yes, 2019
This work presents the calorimetric study of five adsorbents with different chemical and textural characteristics: MOF-199, MCM-41, SBA-15, activated carbon prepared from corn cob (GACKP) and graphite.
Liliana Giraldo   +2 more
core   +1 more source

Isosteric heat of water adsorption and desorption in homoionic alkaline-earth montmorillonites [PDF]

open access: yes, 2018
The aim of the present work is to study by means of thermodynamic measurements, i.e. isotherms of adsorption and desorption of water and Infrared (IR) spectroscopy, the effect of the interlayer cations on the mechanism of adsorption-desorption of water ...
Bassou, G.   +13 more
core   +1 more source

SORPTION ISOTHERMS AND ISOSTERIC HEAT OF PERICARP AND ENDOSPERM TISSUES OF ARABICA COFFEE FRUIT [PDF]

open access: yesEngenharia Agrícola, 2020
The aim of this study was to evaluate and model the hygroscopic equilibrium and isosteric heat curves of pericarp and endosperm tissues of arabica (Coffea arabica) coffee fruit, in different temperature and relative humidity conditions.
Camila de A. Dias   +4 more
doaj   +2 more sources

A surface diffusion block coefficient and model about coal-adsorbed gas

open access: yesMeitan xuebao
80%−90% of coalbed methane(CBM)/coal mine gas is stored in adsorbed state, and the diffusion of adsorbed gas is dominated by surface diffusion, which plays a decisive role in the transportation of CBM.
Yugui ZHANG   +6 more
doaj   +1 more source

Analyse Thermodynamique des Isothermes de Sorptions des Figues

open access: yesRevue des Énergies Renouvelables, 2021
In this study, the hygroscopicity and thermodynamic properties of figs were studied to simulate their hygroscopic behavior during storage and drying. The experimental results were analyzed by the nine models of sorption isotherms.
Abdelouahab Benseddik   +4 more
doaj  

Numerical simulations on the adsorption characteristics of aromatics on activated carbon by the GCMC method

open access: yesCase Studies in Thermal Engineering, 2021
Aromatics cause environmental pollution and seriously threaten human health. Currently, adsorption is regarded as an economical and practical method for aromatics removal.
Ze-Kai Gu   +4 more
doaj   +1 more source

Thermodynamics of moisture sorption in tobacco (Nicotiana tabacum L.) seeds [PDF]

open access: yesE3S Web of Conferences, 2020
In this study, the thermodynamic characteristics of tobacco seeds were investigated, based on experimental data from equilibrium moisture isotherms at desorption.
Toshkov Nesho   +4 more
doaj   +1 more source

On the microscopic origin of the temperature evolution of isosteric heat for methane adsorption on graphite [PDF]

open access: yes, 2017
Understanding methane adsorption is fundamental to understanding gas storage and gas separation technologies. Detailed analyses of methane adsorption on non-porous substrates are pivotal for understanding the intrinsic interactions between the methane ...
Do, D. D.   +9 more
core   +1 more source

3‐Deoxy‐3‐Fluoro Mannuronic Acid Alginates: Stereoselective Automated Synthesis and Conformational Behaviour

open access: yesAngewandte Chemie, Volume 138, Issue 31, 27 July 2026.
The impact of C‐3 fluorination on the synthesis and conformation of alginate oligosaccharides is investigated. A C‐3‐fluoro mannuronic acid building block is generated and shown to react with high β‐selectivity. Automated glycan assembly enables access to uniquely fluorinated mannuronic acid alginates where deoxyfluorination is shown not to perturb the
Sean T. Evans   +10 more
wiley   +2 more sources

Adsorption of selected GHG on metal-organic frameworks in the context of accompanying thermal effects [PDF]

open access: yesArchives of Environmental Protection
Thermal effects accompanying gas sorption on micro- and mesoporous materials provide unique insights into the type, course, and efficiency of sorption. In this study, metal-organic frameworks (MOFs) with different topologies and chemical structures were ...
Aleksandra Gajda   +6 more
doaj   +1 more source

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