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Investigation of High-Temperature and High-Pressure Gas Adsorption in Zeolite H-ZSM-5 via the Langatate Crystal Microbalance: CO2, H2O, Methanol, and Dimethyl Ether
Ding, Wenjin1; Klumpp, Michael2; Li, Hui3; Schygulla, Ulrich1; Pfeifer, Peter1; Schwieger, Wilhelm2; Haas-Santo, Katja1; Dittmeyer, Roland1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2015-10-15
DOI10.1021/acs.jpcc.5b06591
Volume119Issue:41Pages:23478-23485
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordSILICALITE-1 MEMBRANE ; WATER-ADSORPTION ; CARBON-DIOXIDE ; ONE-STEP ; ZSM-5 ; PERMEATION ; MOLECULES ; DIFFUSION ; MIXTURES ; ETHYLENE
AbstractThe adsorption of gases CO2, H2O, methanol, and dimethyl ether (DME) in zeolite H-ZSM-5 in the temperature range of 50-150 degrees C and pressure range of 0-18 bar has been investigated using a high-temperature, high-frequency oscillating microbalance (langatate crystal microbalance, LCM). The determined adsorption data are needed to validate a detailed simulation model, which is meant to assist in the optimization of the preparation of bifunctional core shell catalysts for one-stage DME synthesis from syngas. Compared to the conventional quartz crystal microbalance (QCM) which is limited to temperatures below 80 degrees C, LCM can be used at higher temperatures, i.e., at or close to the reaction temperature of one-stage DME synthesis (200-300 degrees C), owing to the absence of crystalline-phase transitions up to its melting point (1470 degrees C). Zeolite H-ZSM-5 crystallites have been synthesized on the langatate crystal by steam-assisted crystallization (SAC). The loaded H-ZSM-5 (Si/Al molar ratio 100) on the langatate crystal has been confirmed and characterized with X-ray diffraction (XRD), wavelength-dispersive X-ray spectroscopy (WDX), and scanning electron microscopy (SEM). The adsorption experiments showed that the adsorption of CO2, methanol, and DME in H-ZSM-5 is fitted well by the single site Langmuir model, while the dual-site Langmuir model is needed for the adsorption of H2O in H-ZSM-5. The determined adsorption parameters, i.e., adsorption capacities, adsorption enthalpies, and adsorption entropies, compare well to literature data.
Language英语
WOS IDWOS:000363068400023
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146604
Collection中国科学院大连化学物理研究所
Affiliation1.KIT, Inst Micro Proc Engn, D-76344 Eggenstein Leopoldshafen, Germany
2.Univ Erlangen Nurnberg FAU, Chem React Engn, D-91058 Erlangen, Germany
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Ding, Wenjin,Klumpp, Michael,Li, Hui,et al. Investigation of High-Temperature and High-Pressure Gas Adsorption in Zeolite H-ZSM-5 via the Langatate Crystal Microbalance: CO2, H2O, Methanol, and Dimethyl Ether[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(41):23478-23485.
APA Ding, Wenjin.,Klumpp, Michael.,Li, Hui.,Schygulla, Ulrich.,Pfeifer, Peter.,...&Dittmeyer, Roland.(2015).Investigation of High-Temperature and High-Pressure Gas Adsorption in Zeolite H-ZSM-5 via the Langatate Crystal Microbalance: CO2, H2O, Methanol, and Dimethyl Ether.JOURNAL OF PHYSICAL CHEMISTRY C,119(41),23478-23485.
MLA Ding, Wenjin,et al."Investigation of High-Temperature and High-Pressure Gas Adsorption in Zeolite H-ZSM-5 via the Langatate Crystal Microbalance: CO2, H2O, Methanol, and Dimethyl Ether".JOURNAL OF PHYSICAL CHEMISTRY C 119.41(2015):23478-23485.
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