Results 31 to 40 of about 1,347 (175)

Isosteric Heats of Adsorption of N2O and NO on Natural Zeolites

Journal of the Mexican Chemical Society, 2019
We studied the capacities of three natural zeolites to adsorb N2O or NO using a glass high-vacuum volumetric system that permitted characterization of the energetics of the adsorption process. Adsorption equilibrium data were analyzed using the classical Freundlich equation and the Dual–Langmuir model. We employed the Clausius–Clapeyron relationship to
Gerardo Domínguez, Rosario Hernández-Huesca, Gelacio Aguilar-Armenta   +2 more
openaire   +3 more sources

MOISTURE ADSORPTION ISOTHERMS AND ADSORPTION ISOSTERIC HEAT OF DRY GROUND MEAT

Gıda, 2022
Dry ground meat is a cooked meat product. It is a popular meat product in Central Anatolian Region of Turkey. Calf plate or flank meats and intermuscular fats are used in the production of dry ground meat. In this study, sorption isotherms were determined using nine different salt solutions (0.1-0.9 aw) having different relative humidity values at 5 ...
openaire   +1 more source

CO2 Separation from Syngas by Multiwall Carbon Nanotube [PDF]

Iranica Journal of Energy and Environment, 2012
In this study the equilibrium uptakes of hydrogen and carbon dioxid as the main constituents of syngas by the multi-walled carbon nanotube (MWCNT) were investigated at the temperature range of 288-318 K and pressure up to 40 bars.
Soodabeh Khalili, Ali Asghar Ghoreyshi, Mohsen Jahanshahi   +2 more
doaj  

Calculation of Heat of Adsorption of Gases and Refrigerants on Activated Carbons from Direct Measurements Fitted to the Dubinin–Astakhov Equation

Adsorption Science & Technology, 2012
The heat of adsorption of methane, ethane, carbon dioxide, R-507a and R-134a on several specimens of microporous activated carbons is derived from experimental adsorption data fitted to the Dubinin–Astakhov equation. These adsorption results are compared
Kandadai Srinivasan, Pradip Dutta, Kim Choon Ng, Bidyut Baran Saha   +3 more
doaj   +1 more source

Taming Flexibility: Synergistic Pore and Polarity Engineering in a MOF for High‐Efficiency Xe/Kr Separation

Advanced Science, EarlyView.
Through a mixed‐ligand strategy that precisely regulates pore size and framework polarity, the Xe adsorption behavior is transformed from flexible to near‐rigid. ZIF‐7‐Cl(20) achieves sensitive recognition, efficient capture, and high selectivity for Xe, enabling high‐efficiency separation from Xe/Kr mixtures.
Tao Zhao, Xue Wang, Youjin Gong, Siqi Dong, Shunshun Xiong, Hui Xu, Aziz Bakhtiyarovich Ibragimov, Thamraa Alshahrani, He Zheng, Lin Li, Junkuo Gao   +10 more
wiley   +1 more source

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

Meitan 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, Shiqiang CHEN, Mingjie ZHANG, Jiangwei YAN, Cao LIU, Zhe LI, Di CHENG   +6 more
doaj   +1 more source

Carboxylate‐Driven Metal Pre‑Fixation COF@MOF Synthesis: Enabling Tailored Structural, Dimensional, and Defect Engineering

Advanced Science, EarlyView.
A universal metal pre‐fixation (MPF) strategy directs the precise crystallization of diverse metal‐organic frameworks (Co‐MOF, ZIF‐8, Fe‐MOF, UIO‐66) on covalent organic framework (PY‐COF) scaffolds. The resulting hierarchical hybrids exhibit tunable porosity, structural defective and dimensional, as well as enhanced performance in CH4/C2H6/C3H8 ...
Ying Zhao, Dongmei Chen, Huilin Zheng, Min Chen, Dingtang Li, Shuyu Xie   +5 more
wiley   +1 more source

Structured sorbents for Direct Air Capture: The impact of materials and chemicals on performance

AIChE Journal, EarlyView.
Abstract Structured sorbents can efficiently process large air volumes required for Direct Air Capture (DAC), but their broad implementation is limited by challenges in producing reproducible and homogeneous materials. This work presents a robust procedure to graft amines onto monolithic sorbents and systematically investigates how CO2$$ {\mathrm{CO ...
Nicole Ferru, Moritz Bischof, Martina Saporito, David Büchner, Quirin Grossmann, Vincent Dufour‐Décieux, Ronny Pini, André Bardow, Marco Mazzotti   +8 more
wiley   +1 more source

Adsorption of CO/CH Mixtures in a Molecular Model of Activated Carbon through Monte Carlo Simulations

Adsorption Science & Technology, 2012
In this article, a nanoporous carbon model based on units of polyaromatic molecules with different number of rings is described. The adsorption isotherms of pure CO 2 , CH 4 and equimolar mixtures, and isosteric heat calculations on these models ...
Alberto G. Albesa, Matías Rafti, José L. Vicente, Hernán Sánchez, Pablo Húmpola   +4 more
doaj   +1 more source

Porous Organic Cages for CO2 Capture and Confined Reduction

Angewandte Chemie, Volume 138, Issue 28, 6 July 2026.
Porous organic cages (POCs) enable the coupling of CO2 capture and conversion through the interplay of molecular structure and solid‐state organization. Beyond intrinsic cavities, packing‐dependent pore accessibility and mass transport govern local CO2 concentration and catalytic performance, linking adsorption to reactivity in integrated capture ...
Valeria Amendola, Sonia La Cognata
wiley   +2 more sources