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Carbon dioxide (hydrogen sulfide) me...

Huang, Jin.

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Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells./
Author:	Huang, Jin.
Description:	216 p.
Notes:	Adviser: W. S. Winston Ho.
Contained By:	Dissertation Abstracts International67-11B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3241691
ISBN:	9780542965340

Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells.
Huang, Jin.

Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells. - 216 p.

Adviser: W. S. Winston Ho.

Thesis (Ph.D.)--The Ohio State University, 2007.

Acid-gas removal is of great importance in many environmental or energy-related processes. Compared to current commercial technologies, membrane-based CO2 and H2S capture has the advantages of low energy consumption, low weight and space requirement, simplicity of installation/operation, and high process flexibility. However, the large-scale application of the membrane separation technology is limited by the relatively low transport properties.

ISBN: 9780542965340Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells.
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035 $a (UnM)AAI3241691
035 $a AAI3241691
040 $a UnM $c UnM
100 1 $a Huang, Jin. $3 1263002
245 1 0 $a Carbon dioxide (hydrogen sulfide) membrane separations and WGS membrane reactor modeling for fuel cells.
300 $a 216 p.
500 $a Adviser: W. S. Winston Ho.
500 $a Source: Dissertation Abstracts International, Volume: 67-11, Section: B, page: 6671.
502 $a Thesis (Ph.D.)--The Ohio State University, 2007.
520 $a Acid-gas removal is of great importance in many environmental or energy-related processes. Compared to current commercial technologies, membrane-based CO2 and H2S capture has the advantages of low energy consumption, low weight and space requirement, simplicity of installation/operation, and high process flexibility. However, the large-scale application of the membrane separation technology is limited by the relatively low transport properties.
520 $a In this study, CO2 (H2S)-selective polymeric membranes with high permeability and high selectivity have been studied based on the facilitated transport mechanism. The membrane showed facilitated effect for both CO2 and H2S. A CO2 permeability of above 2000 Barrers, a CO2/H2 selectivity of greater than 40, and a CO2/N2 selectivity of greater than 200 at 100--150°C were observed. As a result of higher reaction rate and smaller diffusing compound, the H2S permeability and H2S/H2 selectivity were about three times higher than those properties for CO2. The novel CO2-selective membrane has been applied to capture CO 2 from flue gas and natural gas. In the CO2 capture experiments from a gas mixture with N2 and H2, a permeate CO 2 dry concentration of greater than 98% was obtained by using steam as the sweep gas. In CO2/CH4 separation, decent CO 2 transport properties were obtained with a feed pressure up to 500 psia. With the thin-film composite membrane structure, significant increase on the CO2 flux was achieved with the decrease of the selective layer thickness.
520 $a With the continuous removal of CO2, CO2-selective water-gas-shift (WGS) membrane reactor is a promising approach to enhance CO conversion and increase the purity of H2 at process pressure under relatively low temperature. The simultaneous reaction and transport process in the countercurrent WGS membrane reactor was simulated by using a one-dimensional non-isothermal model. The modeling results show that a CO concentration of less than 10 ppm and a H2 recovery of greater than 97% are achievable from reforming syngases. In an experimental study, the reversible WGS was shifted forward by removing CO2 so that the CO concentration was significantly decreased to less than 10 ppm. The modeling results agreed well with the experimental data.
590 $a School code: 0168.
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Energy. $3 876794
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Engineering, Petroleum. $3 1018448
690 $a 0495
690 $a 0542
690 $a 0765
690 $a 0791
690 $a 0794
710 2 0 $a The Ohio State University. $3 718944
773 0 $t Dissertation Abstracts International $g 67-11B.
790 $a 0168
790 1 0 $a Ho, W. S. Winston, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3241691