Permeation properties of hydrogen and water vapor through porous silica membranes at high temperatures

AIChE Journal ◽  
2010 ◽  
Vol 57 (3) ◽  
pp. 618-629 ◽  
Author(s):  
Toshinori Tsuru ◽  
Ryousuke Igi ◽  
Masakoto Kanezashi ◽  
Tomohisa Yoshioka ◽  
Shinji Fujisaki ◽  
...  
Keyword(s):  
Water Vapor ◽  
High Temperatures ◽  
Porous Silica ◽  
Silica Membranes ◽  
Permeation Properties

Tuning the pore sizes of novel silica membranes for improved gas permeation properties via an in situ reaction between NH3 and Si–H groups

2015 ◽  
Vol 51 (13) ◽  
pp. 2551-2554 ◽  
Author(s):  
Masakoto Kanezashi ◽  
Rui Matsugasako ◽  
Hiromasa Tawarayama ◽  
Hiroki Nagasawa ◽  
Tomohisa Yoshioka ◽  
...  
Keyword(s):  
High Temperatures ◽  
Gas Permeation ◽  
Silica Membranes ◽  
Pore Sizes ◽  
In Situ Reaction ◽  
Permeation Properties

The tuning of pore sizes in triethoxysilane (TRIES)-derived membranes via an in situ reaction between NH3 and Si–H groups at high temperatures.

Hydrogen Permeation Properties and Hydrothermal Stability of Sol-Gel-Derived Amorphous Silica Membranes Fabricated at High Temperatures

2013 ◽  
Vol 96 (9) ◽  
pp. 2950-2957 ◽  
Author(s):  
Masakoto Kanezashi ◽  
Takanori Sasaki ◽  
Hiromasa Tawarayama ◽  
Tomohisa Yoshioka ◽  
Toshinori Tsuru
Keyword(s):  
High Temperatures ◽  
Amorphous Silica ◽  
Hydrogen Permeation ◽  
Sol Gel ◽  
Hydrothermal Stability ◽  
Silica Membranes ◽  
Permeation Properties

The action of water and water vapor at high temperatures and pressures on ceramic construction materials

1966 ◽  
Vol 1 (2) ◽  
pp. 156-159
Author(s):  
P. P. Budnikov ◽  
M. A. Matveev ◽  
F. Ya. Kharitonov
Keyword(s):  
Water Vapor ◽  
High Temperatures ◽  
Construction Materials

Origin of the Hydrogen Absorbed by Incoherent TiC Particles in Iron

2005 ◽  
Vol 475-479 ◽  
pp. 233-236 ◽  
Author(s):  
Kaneaki Tsuzaki ◽  
Fu Gao Wei
Keyword(s):  
Heat Treatment ◽  
Water Vapor ◽  
High Temperatures ◽  
Thermal Desorption ◽  
Hydrogen Absorption ◽  
Room Temperature ◽  
Trap Hydrogen ◽  
Thermal Desorption Spectrometry ◽  
Long Time

Hydrogen absorption of incoherent TiC particles that were once reported to be strong hydrogen traps in iron at room temperature was investigated by means of thermal desorption spectrometry (TDS). The results indicated that incoherent TiC particles in iron do not trap hydrogen at all at room temperature even they are cathodically charged for a long time. Only at high temperatures and in atmosphere containing hydrogen source, incoherent TiC particles can trap hydrogen. The origin of hydrogen trapped by incoherent TiC particles was justified to be water vapor in the atmosphere during heat treatment.

Separation of DMMP/Water Vapor with PDMS/Silica Membranes for the Sample Inlet of Ion Mobility Spectrometers

2014 ◽  
Vol 1049-1050 ◽  
pp. 142-147
Author(s):  
Mo Lin Qin ◽  
Cheng Hai Guo ◽  
Liu Yang ◽  
Jian Jun Zhao
Keyword(s):  
Water Vapor ◽  
Ion Mobility ◽  
Silicone Rubber ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Dimethyl Methylphosphonate ◽  
Silica Membranes ◽  
The Matrix ◽  
Different Thickness ◽  
Maximum Separation

In order to obtain an ideal sample inlet membrane for ion mobility spectrometers (IMS), fumed silica was modified using hexamethyldisilazane and was incorporated into the matrix of polydimethylsiloxane (PDMS) silicone rubber to fabricate PDMS/silica mixed matrix membranes with different thickness. Dimethyl methylphosphonate (DMMP) permeability of thin silicone rubber membranes (SRM) with the least thickness of approximate 5μm was studied. DMMP concentration interior to the SRM showed the linear correlation to that external to the SRM. Thickness and temperature of SRM were two important factors influencing the permeation proportion of DMMP. Most water vapor was prevented to transfer through the SRM. In addition, the SRM had a good selectivity of DMMP/water vapor and the maximum separation factor was 4.82 when the temperature of membranes reached 80 °C.

Effects of Thermal Treatment on Gas Transport Through Porous Silica Membranes

2005 ◽  
Vol 40 (14) ◽  
pp. 2819-2839 ◽  
Author(s):  
Tatsu Hirata ◽  
Shuichi Sato ◽  
Kazukiyo Nagai
Keyword(s):  
Thermal Treatment ◽  
Gas Transport ◽  
Porous Silica ◽  
Silica Membranes
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