Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Kristin Schumann"'
Publikováno v:
Microporous and Mesoporous Materials. 188:126-132
Pulsed field gradient (PFG) NMR is applied for probing the rate of mass transfer of water molecules in zeolite molecular sieves (beads) of type 4A and NaX (NaMSX). Water diffusivities in the binderless species are found to notably exceed the diffusiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e135f242f46150397c67bdae1137358
https://doi.org/10.1016/j.micromeso.2014.01.011
https://doi.org/10.1016/j.micromeso.2014.01.011
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The binary sorption CO 2 and CH 4 in binderless beads of 13X zeolite has been investigated between 313 and 473 K and total pressure up to 5 atm through fixed bed adsorption experiments. The amount adsorbed of CO 2 and CH 4 is around 4.7 mmol/g ads an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::217d8531bbd6a6c7239a06d31f87e801
https://doi.org/10.1016/j.micromeso.2013.12.017
https://doi.org/10.1016/j.micromeso.2013.12.017
Publikováno v:
Microporous and Mesoporous Materials. 154:119-123
In the last few years novel binderless molecular sieves as high-performance materials were introduced into technical adsorption processes. Besides of the 100% active adsorption matter such material exhibits an advantageous secondary pore system. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::557db6e968881da63b4ed4368fe6beb2
https://doi.org/10.1016/j.micromeso.2011.07.015
https://doi.org/10.1016/j.micromeso.2011.07.015
Publikováno v:
International Journal of Low-Carbon Technologies. 7:275-279
Novel binderless zeolite beads of types A and X have been synthesized and characterized by scanning electron microscopy, mercury intrusion, nitrogen adsorption, thermogravimetry, water adsorption isotherm measurements, cyclic hydrothermal treatments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d33f6fe094277642d802039ddce2420c
http://hdl.handle.net/10.1093/ijlct/cts037
http://hdl.handle.net/10.1093/ijlct/cts037
Publikováno v:
Chemie Ingenieur Technik. 83:2251-2259
The pulsed field gradient (PFG) NMR technique is applied for exploring the diffusion behavior of guest molecules in binderless NaX beads in comparison with the zeolite powder employed for their production. With both probe molecules applied (water, n-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8357f46eda1791d5a8fc96f6065fbc1b
https://doi.org/10.1002/cite.201100160
https://doi.org/10.1002/cite.201100160
Publikováno v:
Chemie Ingenieur Technik. 83:2237-2243
Zeolithische Molekularsiebe gehoren nach wie vor zu den industriell bedeutendsten Adsorbentien. In dynamischen, technischen Adsorptionsprozessen ist die Verwendung von Formkorpern unumganglich. Diese werden konventionell mithilfe von mineralischen Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d9196344815ef7bb7a6b214cf909f6
https://doi.org/10.1002/cite.201100151
https://doi.org/10.1002/cite.201100151
Publikováno v:
Chemie Ingenieur Technik. 82:929-940
Zeolithe bzw. zeolithische Molekularsiebe gehoren zu den derzeit bedeutendsten technischen Adsorptionsmitteln. Die Adsorption stellt eine Alternativmoglichkeit zum Trennen von Stoffgemischen oder Reinigen von Stoffen dar. Bei der Stofftrennung durch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73aee094155084159c68b4bec4e64d03
https://doi.org/10.1002/cite.201000013
https://doi.org/10.1002/cite.201000013
Publikováno v:
Macromolecular Symposia. 280:86-94
The synthesis of 3-mono-O-(3'-hydroxypropyi) cellulose via 3-mono-O-allyl-2,6-di-O-thexyldimethylsilyl cellulose was studied. Conversion of the double bond with 9-borabicyclo[3.3.1]nonane and subsequent alkaline oxidation lead to the 3'-hydroxypropyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25462ecd0883e349e5ef1a349a9b4af8
https://doi.org/10.1002/masy.200950610
https://doi.org/10.1002/masy.200950610
Autor:
Vanessa F.D. Martins, Guler Narin, João C. Santos, M.C. Campo, Alírio E. Rodrigues, Kristin Schumann, Ana M. Ribeiro, Alexandre F. P. Ferreira
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
In this work 13X zeolite binderless beads were tested as a new promising material for polymer-grade olefin production from olefin/paraffin mixtures by VPSA technology. In order to characterize the adsorbent and its potential for the target separation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d457042ebe2c4dd65a4a52cee9694579
https://hdl.handle.net/20.500.12636/2220
https://hdl.handle.net/20.500.12636/2220
Autor:
Gundula Fischer, Hannes Richter, Baldur Unger, Kristin Schumann, Jochen Jänchen, Alfons Brandt
Obwohl eine Vielzahl an industriellen Anwendungen fur Zeolithe besteht, haben Bindemittel, die zu Herstellung von konventionellen Zeolithformkorpern benutzt werden, einen negativen Einfluss. Die Herstellung und Charakterisierung von mechanisch stabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9159ebc3141d70b6088ee2b82ce63b5f
https://publica.fraunhofer.de/handle/publica/235922
https://publica.fraunhofer.de/handle/publica/235922