Production and Characterization of Zeolite Membrane

The use of bioethanol as an alternative fuel with a purity of more than 99.5% wt has prompted research on bioethanol purification. One of the promising methods used for bioethanol purification is pervaporation membrane. This research is aimed to prepare and characterize zeolite membranes for pervaporation membrane. The membrane preparation consisted of two stages, namely support preparation and zeolite deposition on the support. In support preparation, α alumina and kaolin with spesific composition (50:30; 40:40; 50:30) was mixed with additives and water. After pugging and aging process, the mixture became paste and extruded into tubular shape. The tube was then calcined at temperature of 1250 °C for 3 hours. After that, zeolite 4A is deposited on the tubes using clear solution made of 10 %wt zeolite and 90 %wt water and heated at temperature of 80 °C for 3 hours. Furthermore, the resulting zeolite membranes was washed with deionized water for 5 minutes and dried in oven at temperature of 100 °C for 24 hours. Characterization of zeolite membranes included mechanical strength test, XRD, and SEM. In the mechanical strength test, the membrane sample with alumina:kaolin = 50:30 (#membrane A#) has the highest mechanical strength of 46.65 N/mm2. Result of XRD analysis for the membran A indicated that mullite and corundum phases were formed, which mullite phase was more dominant. Meanwhile the result of SEM analysis shows that zeolite crystals have been formed and covered the pores support, but the deposition of zeolite has not been optimal yet. The performance examination for bioethanol purification showed that the membrane could increase the purty of bioethanol from 95% to 98% wt

PEMBUATAN DAN KARAKTERISASI SUPPORT LAYER UNTUK MEMBRAN PERVAPORASI

The selection of the membrane has an important role in the process of pervaporation membranes based on the advantages and disadvantages for use in the separation process.. In the separation process of water with low concentration and need a specific condition, anorganic membrane is suitable. The purpose of this research is to find the optimal composition of support for the preparation of zeolite membranes.The result of the research shown the support membrane with composition alumina : kaolin 56%wt : 34%wt has a highest strength 46,65 N/mm2 and 30,24 N/mm2 if it compare with composition of alumina : kaolin 45%wt : 45%wt and 34%wt : 56%wt. And then the support layer is depositioned by zeolite. As an identification result from XRD, it shown mullite as dominant phase that formed with crystal size range 3,16 – 7,25 nm. Based on the analysis results obtained using the SEM support surface which has been deposited into closer, but the zeolite crystals have not formed a bond that forms between each zeolite

Preparation and Characterization of Zeolite Membrane for Bioethanol Purification

The use of bioethanol as an alternative fuel with a purity of more than 99.5% wt has prompted research on bioethanol purification. One of the promising methods used for bioethanol purification is pervaporation membrane. This research is aimed to prepare and characterize zeolite membranes for pervaporation membrane. The membrane preparation consisted of two stages, namely support preparation and zeolite deposition on the support. In support preparation, α- alumina and kaolin with specific composition (50:30; 40:40; 50:30) was mixed with additives and water. After pugging and aging process, the mixture became paste and extruded into tubular shape. The tube was then calcined at temperature of 1250 °C for 3 hours. After that, zeolite 4A was deposited on the tubes using clear solution made of 10 %wt zeolite and 90 %wt water and heated at temperature of 80 °C for 3 hours. Furthermore, the resulting zeolite membranes was washed with deionized water for 5 minutes and dried in oven at temperature of 100 °C for 24 hours. Characterization of zeolite membranes included mechanical strength test, XRD, and SEM. In the mechanical strength test, the membrane sample with α- alumina:kaolin = 50:30 (membrane A) has the highest mechanical strength of 46.65 N/mm2. Result of XRD analysis for the membrane A indicated that mullite and corundum phases were formed, which mullite phase was more dominant. Meanwhile the result of SEM analysis shows that zeolite crystals have been formed and covered the pores support, but the deposition of zeolite has not been optimal yet. The performance examination for bioethanol purification showed that the membrane could increase the purity of bioethanol from 95% to 98.5% wt. © 2013 BCREC UNDIP. All rights reserved<p><em>Received: 23rd October 2012; Revised: 15th February 2013; Accepted: 16th February 2013</em></p><p>[<strong>How to Cite</strong>: Purbasari, A., Istirokhatun, T., Devi, A.M., Mahsunnah, L. , Susanto, H. (2013). Preparation and Characterization of Zeolite Membrane for Bioethanol Purification. <em><strong>Bulletin of Chemical Reaction Engineering &amp; Catalysis</strong></em>, 8 (1): 47-53. (doi:10.9767/bcrec.8.1.4062.47-53)]</p><p>[<strong>Permalink/DOI</strong>: <a href="http://dx.doi.org/10.9767/bcrec.8.1.4062.47-53">http://dx.doi.org/10.9767/bcrec.8.1.4062.47-53</a>]</p><p><a href="http://www.scopus.com/inward/citedby.url?scp=84879834286&amp;partnerID=65&amp;md5=bdd4f87939b7f7ea16a5bbcd1f4eb7d0" target="_blank"><img src="http://searchapi.scopus.com/citedby?&amp;citedbycount=http://be-layer7-prod/content/abstract/citation-count?scopus_id=84879834286&amp;authToken=sat_3F3E792B9534CAE8F600FBF17B69B64CA9151EED1A1CD860C7587A4B4ABEC7769E81292D337ABCC4E1675A110E25B68B10C3D6681CA8200A2F5C7CFA00396F2FF9EF95E7F61A33F7338D131B69F9DA687558DBB7287CFF5733E75574732651F79007513F5CD05743F68965ECC7E7050B45B570A55407779A4E57FDE0CB5635C43EC084CBDAFC745D62E88290FAD58E90773C791B1B691333D536581BA272015F9FFE8CB276D4A4FCBC962429EF879BDF&amp;ipAddress=182.255.0.50&amp;contentAPIKey=9cf02f45d6c541820cab5d2cd870c4f6&amp;authTokenStatusCode=200" border="0" alt="" /></a> | <a class="noDeco" href="http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&amp;scp=84879834286" target="_blank">View in <img style="vertical-align: middle;" src="http://searchapi.scopus.com/images/scopus_white_new.gif" border="0" alt="" /></a> | <a title="Add this article to your Mendeley library" href="http://www.mendeley.com/import/?url=http://dx.doi.org/10.9767/bcrec.8.1.4062.47-53"><img src="http://www.mendeley.com/graphics/mendeley.png" alt="" /></a></p