{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/7912"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/7912","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Desenvolvimento de membranas de matriz mista para separação de O2/N2","abstract":"The production of enriched and/or purified O2 is closely linked to energy and environmental aspects. So, one of technology alternatives to reduce O2 production cost are membranes for gas separation. But, to compete with conventional separation technologies, the development of new materials have been investigated such as mixed matrix membranes (MMM). In this context, the objectives of this work are the development of MMM preparation methodologies using polyurethane (PU) and zeolites 4A e 5A, further on morphological, structural, thermal and transport properties characterizations of MMM for O2/N2 separation. Among developed methodologies, MT1 provided an increase of 140% in selectivity of O2/N2 through MMM PU+Z5A15%. Furthermore, hollow fiber membranes with inside selective layer were produced which better morphology was obtained by spinning condition at GAP of 5 cm and selective solution pressure of 1,0 bar. Therefore, the results provided in this work show that the technology is promising to improve the efficiency of O2/N2 separation.","abstract_html":"The production of enriched and/or purified O2 is closely linked to energy and environmental aspects. So, one of technology alternatives to reduce O2 production cost are membranes for gas separation. But, to compete with conventional separation technologies, the development of new materials have been investigated such as mixed matrix membranes (MMM). In this context, the objectives of this work are the development of MMM preparation methodologies using polyurethane (PU) and zeolites 4A e 5A, further on morphological, structural, thermal and transport properties characterizations of MMM for O2/N2 separation. Among developed methodologies, MT1 provided an increase of 140% in selectivity of O2/N2 through MMM PU+Z5A15%. Furthermore, hollow fiber membranes with inside selective layer were produced which better morphology was obtained by spinning condition at GAP of 5 cm and selective solution pressure of 1,0 bar. Therefore, the results provided in this work show that the technology is promising to improve the efficiency of O2/N2 separation.","abstract_has_math":false,"creators":["Silva, Sandro Eugênio da"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Borges, Cristiano Piacsek"],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-02","date_published":"2016-02","updated_at":"2026-07-24T01:16:26Z","subjects":["Engenharia química","Zeólitas","Membranas de matriz mista","Separação de O2/N2"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/7912","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Borges, Cristiano Piacsek"]},{"key":"dc:creator","label":"Author","values":["Silva, Sandro Eugênio da"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-05-13T18:06:08Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:02:53Z"]},{"key":"dc:date.issued","label":"Date","values":["2016-02"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Tese"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engenharia química","Zeólitas","Membranas de matriz mista","Separação de O2/N2"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/7912"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The production of enriched and/or purified O2 is closely linked to energy and environmental aspects. So, one of technology alternatives to reduce O2 production cost are membranes for gas separation. But, to compete with conventional separation technologies, the development of new materials have been investigated such as mixed matrix membranes (MMM). In this context, the objectives of this work are the development of MMM preparation methodologies using polyurethane (PU) and zeolites 4A e 5A, further on morphological, structural, thermal and transport properties characterizations of MMM for O2/N2 separation. Among developed methodologies, MT1 provided an increase of 140% in selectivity of O2/N2 through MMM PU+Z5A15%. Furthermore, hollow fiber membranes with inside selective layer were produced which better morphology was obtained by spinning condition at GAP of 5 cm and selective solution pressure of 1,0 bar. Therefore, the results provided in this work show that the technology is promising to improve the efficiency of O2/N2 separation."]},{"key":"dc:title","label":"Title","values":["Desenvolvimento de membranas de matriz mista para separação de O2/N2"]}]}],"canonical_facts":{"dc:contributor.advisor":["Borges, Cristiano Piacsek"],"dc:creator":["Silva, Sandro Eugênio da"],"dc:date.accessioned":["2019-05-13T18:06:08Z"],"dc:date.available":["2026-05-16T03:02:53Z"],"dc:date.issued":["2016-02"],"dc:description.abstract":["The production of enriched and/or purified O2 is closely linked to energy and environmental aspects. So, one of technology alternatives to reduce O2 production cost are membranes for gas separation. But, to compete with conventional separation technologies, the development of new materials have been investigated such as mixed matrix membranes (MMM). In this context, the objectives of this work are the development of MMM preparation methodologies using polyurethane (PU) and zeolites 4A e 5A, further on morphological, structural, thermal and transport properties characterizations of MMM for O2/N2 separation. Among developed methodologies, MT1 provided an increase of 140% in selectivity of O2/N2 through MMM PU+Z5A15%. Furthermore, hollow fiber membranes with inside selective layer were produced which better morphology was obtained by spinning condition at GAP of 5 cm and selective solution pressure of 1,0 bar. Therefore, the results provided in this work show that the technology is promising to improve the efficiency of O2/N2 separation."],"dc:identifier.uri":["http://hdl.handle.net/11422/7912"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Engenharia química","Zeólitas","Membranas de matriz mista","Separação de O2/N2"],"dc:title":["Desenvolvimento de membranas de matriz mista para separação de O2/N2"],"dc:type":["Tese"]},"updated_at":"2026-07-24T01:16:26Z"}