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Article: Synthesis of ZSM-5 zeolite membranes without organic templates using a varying-concentration technique

TitleSynthesis of ZSM-5 zeolite membranes without organic templates using a varying-concentration technique
Authors
KeywordsIdeal Selectivity
Permeance
Template-Free
Varying-Concentration Synthesis
Zsm-5 Zeolite Membrane
Issue Date2006
PublisherZhongguo Youse Jinshu Xuehui
Citation
Rare Metals, 2006, v. 25 n. 6 SUPPL. 1, p. 384-389 How to Cite?
AbstractTemplate-free nanosized ZSM-5 seeds with an average size of 15 nm were prepared from a synthesis solution with the composition 12Na2O:100SiO2 :2Al2O3:2500H2O. By the use of these seeds, thin ZSM-5 zeolite membranes were prepared on the outer surface of a porous a-alumina tube with a pore size of 2 μm in a gel system by varying-concentration synthesis with organic-free template. The first composition synthesis sol-gel was the same as seeds of molar composition and the second one was 12Na2O:100SiO2 :2Al2O3: 5000 H2O at 180°C, for 10 h, respectively. XRD shows that the film consists of well-crystallized ZSM-5 zeolite. SEM investigation indicats that the zeolite films on the supports are defect free and the film thickness is approximately 8 μm. The permeances for H2, N2, CH4 and CO2 are 8.94 × 10-7, 3.27 × 10-7, 3.9 × 10-7, 3.14 × l0-7 and 0.874 × 10-7 mol· m2·s-1·Pa-1, respectively. The ideal selectivity of membrane at room temperature for H2/CO2, H2/N2, H2/CH4 are 2.84, 2.73 and 2.29, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/91278
ISSN
2015 Impact Factor: 0.957
2015 SCImago Journal Rankings: 0.391
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheng, Yen_HK
dc.contributor.authorLiao, Ren_HK
dc.contributor.authorLi, Jen_HK
dc.contributor.authorWang, Len_HK
dc.contributor.authorSun, Xen_HK
dc.date.accessioned2010-09-17T10:16:05Z-
dc.date.available2010-09-17T10:16:05Z-
dc.date.issued2006en_HK
dc.identifier.citationRare Metals, 2006, v. 25 n. 6 SUPPL. 1, p. 384-389en_HK
dc.identifier.issn1001-0521en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91278-
dc.description.abstractTemplate-free nanosized ZSM-5 seeds with an average size of 15 nm were prepared from a synthesis solution with the composition 12Na2O:100SiO2 :2Al2O3:2500H2O. By the use of these seeds, thin ZSM-5 zeolite membranes were prepared on the outer surface of a porous a-alumina tube with a pore size of 2 μm in a gel system by varying-concentration synthesis with organic-free template. The first composition synthesis sol-gel was the same as seeds of molar composition and the second one was 12Na2O:100SiO2 :2Al2O3: 5000 H2O at 180°C, for 10 h, respectively. XRD shows that the film consists of well-crystallized ZSM-5 zeolite. SEM investigation indicats that the zeolite films on the supports are defect free and the film thickness is approximately 8 μm. The permeances for H2, N2, CH4 and CO2 are 8.94 × 10-7, 3.27 × 10-7, 3.9 × 10-7, 3.14 × l0-7 and 0.874 × 10-7 mol· m2·s-1·Pa-1, respectively. The ideal selectivity of membrane at room temperature for H2/CO2, H2/N2, H2/CH4 are 2.84, 2.73 and 2.29, respectively.en_HK
dc.languageengen_HK
dc.publisherZhongguo Youse Jinshu Xuehuien_HK
dc.relation.ispartofRare Metalsen_HK
dc.subjectIdeal Selectivityen_HK
dc.subjectPermeanceen_HK
dc.subjectTemplate-Freeen_HK
dc.subjectVarying-Concentration Synthesisen_HK
dc.subjectZsm-5 Zeolite Membraneen_HK
dc.titleSynthesis of ZSM-5 zeolite membranes without organic templates using a varying-concentration techniqueen_HK
dc.typeArticleen_HK
dc.identifier.emailCheng, Y:yuecheng@hku.hken_HK
dc.identifier.authorityCheng, Y=rp1320en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S1001-0521(07)60111-9en_HK
dc.identifier.scopuseid_2-s2.0-33846846657en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846846657&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume25en_HK
dc.identifier.issue6 SUPPL. 1en_HK
dc.identifier.spage384en_HK
dc.identifier.epage389en_HK
dc.identifier.isiWOS:000242948100077-

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