Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO2/CH4 and C2H4/C2H6 separation

Yihong Zheng; Na Hu; Huamei Wang; Na Bu; Fei Zhang; Rongfei Zhou

doi:10.1016/j.memsci.2014.10.048

Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO₂/CH₄ and C₂H₄/C₂H₆ separation

Yihong Zheng, Na Hu, Huamei Wang, Na Bu, Fei Zhang, Rongfei Zhou

化工学院

科研成果: 期刊稿件 › 文章 › 同行评审

155 引用（Scopus）

摘要

High-quality SSZ-13 membranes were synthesized using the combinative structure-directing agents of N,N,N, trimethtyl-1-adamantammonium hydroxide and tetraethylammonium hydroxide by one hydrothermal treatment step. The two organics took a "cooperative structural-directing" role on SSZ-13 crystallization. The best membrane had a CO₂ permeance of 2.0×10^-7mol/(m²sPa) with a CO₂/CH₄ selectivity of 300 and a C₂H₄ permeance of 2.9×10^-9mol/(m²sPa) with a C₂H₄/C₂H₆ selectivity of 11, at 303K and 0.2MPa feed pressure for these equimolar binary mixtures, respectively. SSZ-13 membranes also displayed high performances for CO₂/CH₄ and C₂H₄/C₂H₆ separations at higher feed pressures of 0.8-1MPa. These SSZ-13 membranes were hydrothermally stable at steam for at least 4 days at 378K and acid-resistance at pH=1.

源语言	英语
页（从-至）	303-310
页数	8
期刊	Journal of Membrane Science
卷	475
DOI	https://doi.org/10.1016/j.memsci.2014.10.048
出版状态	已出版 - 1 2月 2015

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10.1016/j.memsci.2014.10.048

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title = "Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO2/CH4 and C2H4/C2H6 separation",

abstract = "High-quality SSZ-13 membranes were synthesized using the combinative structure-directing agents of N,N,N, trimethtyl-1-adamantammonium hydroxide and tetraethylammonium hydroxide by one hydrothermal treatment step. The two organics took a {"}cooperative structural-directing{"} role on SSZ-13 crystallization. The best membrane had a CO2 permeance of 2.0×10-7mol/(m2sPa) with a CO2/CH4 selectivity of 300 and a C2H4 permeance of 2.9×10-9mol/(m2sPa) with a C2H4/C2H6 selectivity of 11, at 303K and 0.2MPa feed pressure for these equimolar binary mixtures, respectively. SSZ-13 membranes also displayed high performances for CO2/CH4 and C2H4/C2H6 separations at higher feed pressures of 0.8-1MPa. These SSZ-13 membranes were hydrothermally stable at steam for at least 4 days at 378K and acid-resistance at pH=1.",

keywords = "CH/CH separation, CO/CH separation, High-silica CHA, SSZ-13 membrane, Structural-directing agent",

author = "Yihong Zheng and Na Hu and Huamei Wang and Na Bu and Fei Zhang and Rongfei Zhou",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

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day = "1",

doi = "10.1016/j.memsci.2014.10.048",

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T1 - Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO2/CH4 and C2H4/C2H6 separation

AU - Zheng, Yihong

AU - Hu, Na

AU - Wang, Huamei

AU - Bu, Na

AU - Zhang, Fei

AU - Zhou, Rongfei

PY - 2015/2/1

Y1 - 2015/2/1

N2 - High-quality SSZ-13 membranes were synthesized using the combinative structure-directing agents of N,N,N, trimethtyl-1-adamantammonium hydroxide and tetraethylammonium hydroxide by one hydrothermal treatment step. The two organics took a "cooperative structural-directing" role on SSZ-13 crystallization. The best membrane had a CO2 permeance of 2.0×10-7mol/(m2sPa) with a CO2/CH4 selectivity of 300 and a C2H4 permeance of 2.9×10-9mol/(m2sPa) with a C2H4/C2H6 selectivity of 11, at 303K and 0.2MPa feed pressure for these equimolar binary mixtures, respectively. SSZ-13 membranes also displayed high performances for CO2/CH4 and C2H4/C2H6 separations at higher feed pressures of 0.8-1MPa. These SSZ-13 membranes were hydrothermally stable at steam for at least 4 days at 378K and acid-resistance at pH=1.

AB - High-quality SSZ-13 membranes were synthesized using the combinative structure-directing agents of N,N,N, trimethtyl-1-adamantammonium hydroxide and tetraethylammonium hydroxide by one hydrothermal treatment step. The two organics took a "cooperative structural-directing" role on SSZ-13 crystallization. The best membrane had a CO2 permeance of 2.0×10-7mol/(m2sPa) with a CO2/CH4 selectivity of 300 and a C2H4 permeance of 2.9×10-9mol/(m2sPa) with a C2H4/C2H6 selectivity of 11, at 303K and 0.2MPa feed pressure for these equimolar binary mixtures, respectively. SSZ-13 membranes also displayed high performances for CO2/CH4 and C2H4/C2H6 separations at higher feed pressures of 0.8-1MPa. These SSZ-13 membranes were hydrothermally stable at steam for at least 4 days at 378K and acid-resistance at pH=1.

KW - CH/CH separation

KW - CO/CH separation

KW - High-silica CHA

KW - SSZ-13 membrane

KW - Structural-directing agent

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U2 - 10.1016/j.memsci.2014.10.048

DO - 10.1016/j.memsci.2014.10.048

M3 - 文章

AN - SCOPUS:84909619787

SN - 0376-7388

VL - 475

SP - 303

EP - 310

JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO2/CH4 and C2H4/C2H6 separation

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Preparation of steam-stable high-silica CHA (SSZ-13) membranes for CO₂/CH₄ and C₂H₄/C₂H₆ separation