Results 21 to 30 of about 847 (164)

Mathematical Modeling of Moisture Sorption Isotherms and Determination of Isosteric Heats of Sorption ofZiziphusLeaves [PDF]

Modelling and Simulation in Engineering, 2014
Desorption and adsorption equilibrium moisture isotherms ofZiziphus spina-christileaves were determined using the gravimetric-static method at 30, 40, and 50°C for water activity(aw)ranging from 0.057 to 0.898. At a givenaw, the results show that the moisture content decreases with increasing temperature. A hysteresis effect was observed.
Amel Saad, Boumediene Touati, Belkacem Draoui, Boufeldja Tabti, Asma Abdenebi, Said Bennaceur   +5 more
openaire   +2 more sources

Desorption isotherms of flaxseeds (Linum usitatissimum L.) and thermodynamic parameters of the process

Revista Ciência Agronômica, 2020
Sorption isotherms of flaxseeds were determined by static gravimetric method at temperatures 40, 60, and 80 ºC, over a relative moisture range of 10-95%. Six mathematical models were applied to analyze the experimental data. The modified GAB model showed
Maria da Conceição da Costa Valente, Rafael Alves do Nascimento, Elza Brandão Santana, Lênio José Guerreiro de Faria, Cristiane Maria Leal Costa   +4 more
doaj   +1 more source

Analyse Thermodynamique des Isothermes de Sorptions des Figues

Revue 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, Hocine Bensaha, Djemoui Lalmi, Adiba Benahmed-djilali, Ahmed Azzi   +4 more
doaj  

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

Engenharia 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, Ednilton T. de Andrade, Isabella A. Lemos, Flávio M. Borém, Ezequiel A. Barros   +4 more
doaj   +2 more sources

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

Archives 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, Przemysław Jodłowski, Katarzyna Kozieł, Grzegorz Kurowski, Kornelia Hyjek, Norbert Skoczylas, Anna Pajdak   +6 more
doaj   +1 more source

Supramolecular Protection–Deprotection for Switching Pore‐Surface Functionality in a Crystalline Porous Organic Salt

Angewandte Chemie, EarlyView.
A supramolecular protection–deprotection strategy temporally separates the framework construction from pore‐surface activation in a porous organic salt. In Form I, phenolic OH groups are protected by DMSO, enabling framework formation. Stepwise single‐crystal‐to‐single‐crystal phase transformation (SCSC) affords a dormant intermediate (Form II ...
Kazuki Shiga, Ryota Yamazaki, Hajime Shigemitsu, Yuuya Nagata, Norimitsu Tohnai   +4 more
wiley   +2 more sources

Crosslinking of Linear Polyimines Into Aminal‐Linked Porous Organic Polymers for C2 Hydrocarbon/Methane Separation

Angewandte Chemie, EarlyView.
Crosslinking of linear polyimines with aromatic diamines via nucleophilic addition converts nonporous polyimine precursors into aminal‐linked porous networks, offering a new strategy for synthesizing porous organic polymers. The resulting materials exhibit high C2 hydrocarbon adsorption capacity, excellent selectivity over CH4, and durable cyclic ...
Xuejie Li, Yayu Yan, Qiaohong Li, Michelle Åhlén, Chao Xu   +4 more
wiley   +2 more sources