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Enhanced Trace Carbon Dioxide Capture on Heteroatom-Substituted RHO Zeolites under Humid Conditions
Ke, Quanli1,2; Sun, Tianjun1; Wei, Xiaoli1,2; Guo, Ya1,2; Wang, Shudong1
关键词Adsorption Boron Carbon Capture Doping Zeolites
刊名CHEMSUSCHEM
2017-11-09
DOI10.1002/cssc.201701162
10期:21页:4207-4214
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]UNIVALENT CATION FORMS ; CO2 CAPTURE ; 18-CROWN-6 ETHER ; ORGANIC TEMPLATE ; LTA ZEOLITES ; FLUE-GASES ; ADSORPTION ; SEPARATION ; PERFORMANCE ; ADSORBENT
英文摘要Boron and copper heteroatoms were successfully incorporated into the frameworks of high-silica RHO zeolite by adopting a bulky alkali-metal-crown ether (AMCE) complex as the template. These heteroatom-doped zeolites show both larger micropore surface areas and volumes than those of their aluminosilicate analogue. Proton-type RHO zeolites were then applied for the separation of CO2/CH4/N-2 mixtures, as these zeolites have weaker electric fields and, thus, lower heats of adsorption. The adsorption results showed that a balance between working capacity and adsorption heat could be achieved for these heteroatom-doped zeolites. Ideal adsorbed solution theory predictions indicate that these zeolites should have high selectivities even for remarkably dilute sources of CO2. Finally, the heteroatom-substituted zeolites, especially the boron-substituted one, could be thermally regenerated rapidly at 150 degrees C after full hydration and maintained high regenerability for up to 30 cycles; therefore, they are potential candidates for trace CO2 removal under humid conditions.
语种英语
WOS记录号WOS:000414810200012
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149712
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Ke, Quanli,Sun, Tianjun,Wei, Xiaoli,et al. Enhanced Trace Carbon Dioxide Capture on Heteroatom-Substituted RHO Zeolites under Humid Conditions[J]. CHEMSUSCHEM,2017,10(21):4207-4214.
APA Ke, Quanli,Sun, Tianjun,Wei, Xiaoli,Guo, Ya,&Wang, Shudong.(2017).Enhanced Trace Carbon Dioxide Capture on Heteroatom-Substituted RHO Zeolites under Humid Conditions.CHEMSUSCHEM,10(21),4207-4214.
MLA Ke, Quanli,et al."Enhanced Trace Carbon Dioxide Capture on Heteroatom-Substituted RHO Zeolites under Humid Conditions".CHEMSUSCHEM 10.21(2017):4207-4214.
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