A Pore-Size-Dependent Equation of State for Multilayer Adsorption in Cylindrical Mesopores

Langmuir ◽  
1999 ◽  
Vol 15 (10) ◽  
pp. 3632-3641 ◽  
Author(s):  
H. Y. Zhu ◽  
L. A. Ni ◽  
G. Q. Lu
Keyword(s):  
Equation Of State ◽  
Pore Size ◽  
Multilayer Adsorption ◽  
Size Dependent

A novel pore-size-dependent equation of state for modeling fluid phase behavior in nanopores

2019 ◽  
Vol 498 ◽  
pp. 72-85 ◽  
Author(s):  
Sheng Luo ◽  
Bikai Jin ◽  
Jodie L. Lutkenhaus ◽  
Hadi Nasrabadi
Keyword(s):  
Equation Of State ◽  
Phase Behavior ◽  
Pore Size ◽  
Fluid Phase ◽  
Size Dependent

Transfer Technique for Electron Microscopy of Membrance Filter Samples

1974 ◽  
Vol 32 ◽  
pp. 554-555
Author(s):  
Lawrence W. Ortiz ◽  
Bonnie L. Isom
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Pore Size ◽  
Membrane Filters ◽  
Size Dependent

A procedure is described for the quantitative transfer of fibers and particulates collected on membrane filters to electron microscope (EM) grids. Various Millipore MF filters (Millipore AA, HA, GS, and VM; 0.8, 0.45, 0.22 and 0.05 μm mean pore size) have been used with success. Observed particle losses have not been size dependent and have not exceeded 10%. With fibers (glass or asbestos) as the collected media this observed loss is approximately 3%.

scholarly journals Pore-Scale Simulation of Confined Phase Behavior with Pore Size Distribution and Its Effects on Shale Oil Production

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1315
Author(s):  
Jingwei Huang ◽  
Hongsheng Wang
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Pore Size Distribution ◽  
Phase Behavior ◽  
Pore Size ◽  
Size Distribution ◽  
Critical Role ◽  
Shale Oil ◽  
Pore Scale ◽  
Modified Equation

Confined phase behavior plays a critical role in predicting production from shale reservoirs. In this work, a pseudo-potential lattice Boltzmann method is applied to directly model the phase equilibrium of fluids in nanopores. First, vapor-liquid equilibrium is simulated by capturing the sudden jump on simulated adsorption isotherms in a capillary tube. In addition, effect of pore size distribution on phase equilibrium is evaluated by using a bundle of capillary tubes of various sizes. Simulated coexistence curves indicate that an effective pore size can be used to account for the effects of pore size distribution on confined phase behavior. With simulated coexistence curves from pore-scale simulation, a modified equation of state is built and applied to model the thermodynamic phase diagram of shale oil. Shifted critical properties and suppressed bubble points are observed when effects of confinement is considered. The compositional simulation shows that both predicted oil and gas production will be higher if the modified equation of state is implemented. Results are compared with those using methods of capillary pressure and critical shift.

Diverting the phase transition behaviour of adipic acid via mesoporous silica confinement

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 111787-111796 ◽  
Author(s):  
Shang Liu ◽  
Guixiang Ma ◽  
Shaolei Xie ◽  
Yongzhong Jia ◽  
Jinhe Sun ◽  
...  
Keyword(s):  
Phase Transition ◽  
Mesoporous Silica ◽  
Pore Size ◽  
Thermal Behaviour ◽  
Adipic Acid ◽  
Size Dependent ◽  
Transition Behaviour

Phase transition regulation was achieved by imbibing adipic acid into mesoporous silica chambers, on the basis of pore size-dependent thermal behaviour.

scholarly journals Pore Size-Dependent Structure of Confined Water in Mesoporous Silica Films from Water Adsorption/Desorption Using ATR–FTIR Spectroscopy

Langmuir ◽  
2019 ◽  
Vol 35 (37) ◽  
pp. 11986-11994 ◽  
Author(s):  
Bettina Baumgartner ◽  
Jakob Hayden ◽  
Jérôme Loizillon ◽  
Sophia Steinbacher ◽  
David Grosso ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Ftir Spectroscopy ◽  
Pore Size ◽  
Water Adsorption ◽  
Confined Water ◽  
Silica Films ◽  
Size Dependent ◽  
Adsorption Desorption

On the concentration dependence of surface diffusion coefficients in capillary porous materials

1991 ◽  
Vol 434 (1891) ◽  
pp. 317-340 ◽  
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Pore Size ◽  
Surface Diffusion ◽  
Diffusion Coefficients ◽  
Physical Adsorption ◽  
Structural Heterogeneity ◽  
Size Dependent ◽  
Chemical Potentials ◽  
Uniform Pore Size

The influence of structural heterogeneity, in the form of a non-uniform pore size distribution, on the isotherms and surface diffusion coefficients for monolayer physical adsorption is studied. A pore size dependent langmuirian isotherm is used along with consideration of equality of chemical potentials at the pore mouths at an intersection. The diffusion is modelled by a recently developed random walk formulation. It is found that the surface diffusion coefficients are strongly influenced by the heterogeneity and have a stronger increase with overall coverage than that predicted by the Darken equation. The results are found to match the experimental data of P. C. Carman and F. A. Raal on the diffusion of carbon dioxide in carbon black without the use of a fitting parameter.

Pore size dependent dynamics of confined water probed by FIR spectroscopy

2010 ◽  
Vol 12 (26) ◽  
pp. 6928 ◽  
Author(s):  
Natalia Pérez-Hernández ◽  
Trung Quan Luong ◽  
Cirilo Pérez ◽  
Julio D. Martín ◽  
Martina Havenith
Keyword(s):  
Pore Size ◽  
Confined Water ◽  
Size Dependent

scholarly journals Pore size dependent molecular adsorption of cationic dye in biomass derived hierarchically porous carbon

2017 ◽  
Vol 196 ◽  
pp. 168-177 ◽  
Author(s):  
Long Chen ◽  
Tuo Ji ◽  
Liwen Mu ◽  
Yijun Shi ◽  
Huaiyuan Wang ◽  
...  
Keyword(s):  
Pore Size ◽  
Porous Carbon ◽  
Molecular Adsorption ◽  
Cationic Dye ◽  
Hierarchically Porous ◽  
Size Dependent
Sign in / Sign up

Export Citation Format

Share Document