Determination of the surface area of single particles from high-pressure carbon dioxide adsorption-desorption measurements in an electrodynamic chamber

1991 ◽  
Vol 5 (1) ◽  
pp. 227-228 ◽  
Author(s):  
Ezra Bar-Ziv ◽  
John P. Longwell ◽  
Adel F. Sarofim
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Surface Area ◽  
Carbon Dioxide Adsorption ◽  
Single Particles ◽  
Adsorption Desorption

scholarly journals The Effect of 200 MPa Pressure on Specific Surface Area of Clay

2015 ◽  
Vol 36 (4) ◽  
pp. 3-6 ◽  
Author(s):  
Ewa Koszela-Marek
Keyword(s):  
High Pressure ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Pressure Effect ◽  
Laboratory Studies ◽  
Adsorption Method ◽  
Pressure Tests ◽  
Soil Skeleton

Abstract The paper presents the results of laboratory studies of the 200 MPa pressure effect on specific surface area of clay. The original high-pressure investigation stand was used for the pressure tests. Determination of the specific surface area was performed by the methylene blue adsorption method. The results of the specific surface area test were compared for non-pressurized clays and for clays pressured in a high-pressure chamber. It was found that the specific surface area of pressurized soil clearly increased. This shows that some microstructural changes take place in the soil skeleton of clays.

The Influence of Coal Adsorbing Methane and Carbon Dioxide on Gas Outburst

2014 ◽  
Vol 1049-1050 ◽  
pp. 101-104 ◽  
Author(s):  
De Zhu Cheng ◽  
Ai Ling Du ◽  
Ai Qin Du
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Langmuir Isotherm ◽  
Gas Adsorption ◽  
Good Description ◽  
Methane Adsorption ◽  
Pulverized Coal ◽  
Carbon Dioxide Adsorption ◽  
Adsorption Experiment ◽  
Anthracite Coal

Methane and carbon dioxide of different pressures were absorbed by the anthracite coal for 5 hours in high pressure reactor. When adsorption experiment was completed, pressure is reduced quickly. The content of pulverized coal which was produced by releasing gas quickly, was used to reflect capacity of gas adsorption. The result showed that the content of pulverized coal which was produced by adsorbing CH4 was higher than that was produced by adsorbing CO2 on the same coal under the same pressure. Langmuir isotherm and Freundlich isothermal can describe coal methane adsorption. Freundlich isothermal can be a good description of coal carbon dioxide adsorption.

scholarly journals Ionic Liquids-Functionalized Zeolitic Imidazolate Framework for Carbon Dioxide Adsorption

Materials ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2361 ◽  
Author(s):  
Xuyan Song ◽  
Jialin Yu ◽  
Min Wei ◽  
Ran Li ◽  
Xi Pan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Surface Area ◽  
Average Pore Size ◽  
Carbon Dioxide Adsorption ◽  
Zeolitic Imidazolate Frameworks ◽  
Zeolitic Imidazolate Framework ◽  
Average Pore ◽  
Solid Sorbents

Ionic-liquid-functionalized zeolitic imidazolate frameworks (ZIF) were synthesized using the co-ligands of 2-methylimidazole and amine-functionalized ionic liquid during the formation process of frameworks. The resulting ionic-liquid-modified ZIF had a specific surface area of 1707 m2·g−1 with an average pore size of about 1.53 nm. Benefiting from the large surface area and the high solubility of carbon dioxide in ionic-liquid moieties, the synthesized materials exhibited a carbon dioxide adsorption capacity of about 24.9 cm3·g−1, whereas it was 16.3 cm3·g−1 for pristine ZIF at 25 °C under 800 mmHg. The results demonstrate that the modification of porous materials with ionic liquids could be an effective way to fabricate solid sorbents for carbon dioxide adsorption.

Determination of polystyrene–carbon dioxide–decahydronaphthalene solution properties by high pressure dynamic light scattering

Polymer ◽  
2009 ◽  
Vol 50 (24) ◽  
pp. 5728-5732 ◽  
Author(s):  
Laura Beth Dong ◽  
Ruben G. Carbonell ◽  
George W. Roberts ◽  
Douglas J. Kiserow
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Solution Properties
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