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Title: DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION

Abstract

Mesoporous and precipitated alumina were synthesized as the base material for CO{sub 2} adsorbent. The porous alumina is doped with Ba to enhance it CO{sub 2} affinity due to the basicity of Ba. it is shown by gas chromatograph (GC) that the addition of Ba enhances the separation CO{sub 2} from N{sub 2}. It was found that mesoporous alumina has larger specific surface area and better selectivity of CO{sub 2} than precipitated alumina. Ba improves the affinity of mesoporous alumina with CO{sub 2}. Phase may play an important role in selective adsorption of CO{sub 2}. It is speculated that mesoporous alumina is more reactive than precipitated alumina creating the xBaO {center_dot} Al{sub 2}O{sub 3} phase that may be more affinity to CO{sub 2} than N{sub 2}. On the other hand, the barium aluminate phase (Ba{sub 3}Al{sub 2}O{sub 6}) in the mesoporous sample does not help the adsorption of CO{sub 2}.

Authors:
; ;
Publication Date:
Research Org.:
National Energy Technology Lab., Pittsburgh, PA (US); National Energy Technology Lab., Morgantown, WV (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
795760
Report Number(s):
FG26-00NT40823-01
TRN: US200213%%3
DOE Contract Number:  
FG26-00NT40823
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 May 2002
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; MEMBRANES; DESIGN; CARBON DIOXIDE; ADSORPTION; ALUMINIUM OXIDES; BARIUM OXIDES; NITROGEN; SPECIFIC SURFACE AREA; PHASE STUDIES

Citation Formats

Wei-Heng Shih, Qiang Zhao, and Nanlin Wang. DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION. United States: N. p., 2002. Web. doi:10.2172/795760.
Wei-Heng Shih, Qiang Zhao, & Nanlin Wang. DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION. United States. doi:10.2172/795760.
Wei-Heng Shih, Qiang Zhao, and Nanlin Wang. Wed . "DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION". United States. doi:10.2172/795760. https://www.osti.gov/servlets/purl/795760.
@article{osti_795760,
title = {DEVELOPMENT OF MESOPOROUS MEMBRANE MATERIALS FOR CO2 SEPARATION},
author = {Wei-Heng Shih and Qiang Zhao and Nanlin Wang},
abstractNote = {Mesoporous and precipitated alumina were synthesized as the base material for CO{sub 2} adsorbent. The porous alumina is doped with Ba to enhance it CO{sub 2} affinity due to the basicity of Ba. it is shown by gas chromatograph (GC) that the addition of Ba enhances the separation CO{sub 2} from N{sub 2}. It was found that mesoporous alumina has larger specific surface area and better selectivity of CO{sub 2} than precipitated alumina. Ba improves the affinity of mesoporous alumina with CO{sub 2}. Phase may play an important role in selective adsorption of CO{sub 2}. It is speculated that mesoporous alumina is more reactive than precipitated alumina creating the xBaO {center_dot} Al{sub 2}O{sub 3} phase that may be more affinity to CO{sub 2} than N{sub 2}. On the other hand, the barium aluminate phase (Ba{sub 3}Al{sub 2}O{sub 6}) in the mesoporous sample does not help the adsorption of CO{sub 2}.},
doi = {10.2172/795760},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 01 00:00:00 EDT 2002},
month = {Wed May 01 00:00:00 EDT 2002}
}

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