Made available in DSpace on 2015-04-14T13:58:48Z (GMT). No. of bitstreams: 1
438589.pdf: 4872260 bytes, checksum: 7a7d4afb2e3e9cf2c377c01b09f71361 (MD5)
Previous issue date: 2012-03-27 / This study evaluated the development of polyimide filter cartridge for use in high temperature particulate filtration of LDPE in the petrochemical industry. An epoxy prepared with DGEBA resin and a new curing agent formulation of polyaminoamide:amine 9:1 was evaluated for gluing pleating non-woven fabric to the cartridge metal borders. The research first step was to characterize LDPE particles (screening and SEM) of polyimide fiber (TGA and FTIR), polyimide non-woven fabric, polyester, and polyacrylonitrile copolymer (SEM) and epoxy (TGA, FTIR and DSC). The study second step was application in non-woven fabric for its dimensional alteration dimensional, permeability and inflammability. Polyamide non-woven fabric mechanical properties was analyzed by tensile strength under several temperatures in relation to time. Multifactor experiments for non-woven fabric filtration were analyzed using ANOVA. The third step was attributed to choosing an ideal formulation between DGEBA resin and curing agent through tensile strength test: regarding its preparation conditions, compared to other curing agents, thermal tests and humidity absorbance. Epoxy impact resistance was analyzed by izod. The last step was dedicated to cartridge filtration tests, laboratorial and industrial, in order to verify the construction set efficacy. Laboratory results obtained with cartridge prototypes show a better filtration performance with polyimide compared to other non-woven fabrics due its rapid onset of filtration cake, smaller load loss and low emission. After twenty-five months of industrial use of the polyimide cartridge filter with epoxy resin, it was observed good filtration conditions under up to 240?C with low particle emission, controlled load loss and power reuse in the industrial process. / Neste estudo avaliou-se o desenvolvimento de filtro cartucho de poliimida para uso em altas temperaturas, para filtra??o de particulados de PEBD em ind?stria petroqu?mica. Foi pesquisado um ep?xi, preparado com resina DGEBA e nova formula??o de agente de cura de poliaminoamida:amina 9:1, para a colagem do n?o tecido plissado nas extremidades met?licas do cartucho. A primeira etapa da pesquisa consistiu na caracteriza??o dos particulados de PEBD (peneiramento e MEV), da fibra de poliimida (TGA e FTIR), dos n?o tecidos de poliimida, do poli?ster e poliacrilonitrila copol?mero (MEV) e do ep?xi (TGA, FTIR e DSC). A segunda parte do estudo foi de desempenho em n?o tecidos, quanto ? altera??o dimensional, permeabilidade e inflamabilidade. Avaliou-se por tra??o as propriedades mec?nicas do n?o tecido de poliimida, submetido a diversas temperaturas em fun??o do tempo. Por meio da ANOVA realizou-se a an?lise dos experimentos multifatoriais de simula??o de filtra??o em n?o tecidos. A terceira parte envolveu a escolha da formula??o ideal entre resina DGEBA e agente de cura, atrav?s de ensaios de tra??o: quanto ?s condi??es de preparo, comparativos com outros agentes de curas, ensaios t?rmicos e absor??o de umidade. A resist?ncia ao impacto do ep?xi foi avaliada por izod. A ?ltima etapa foi dedicada aos testes de filtra??o em cartucho, laboratorial e industrial, para verificar a efic?cia do conjunto da constru??o. Os resultados laboratoriais obtidos com prot?tipos de cartuchos demonstraram a melhor performance de filtra??o com poliimida comparada aos outros n?o tecido, devido a r?pida forma??o da torta de filtra??o, pouca perda de carga e baixa emiss?o. Ap?s vinte e cinco meses de aplica??o industrial do filtro cartucho de poliimida com resina ep?xi, constatou-se boas condi??es de filtra??o at? 240?C, com baixa emiss?o de particulados, perda de carga controlada e reaproveitamento de energia no processo industrial.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/3201 |
| Date | 27 March 2012 |
| Creators | Ceron, Luciano Peske |
| Contributors | Einloft, Sandra Mara Oliveira |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Engenharia e Tecnologia de Materiais, PUCRS, BR, Faculdade de Engenharia |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | -7432719344215120122, 500, 600, -655770572761439785 |
Page generated in 0.0022 seconds