| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3K93PTL | |||
| Repository | sid.inpe.br/mtc-m21b/2015/09.15.18.48 | |||
| Last Update | 2015:09.29.12.26.14 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2015/09.15.18.48.43 | |||
| Metadata Last Update | 2018:06.04.02.55.39 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | OkamotoMascBuenViei:2015:DeCaMá | |||
| Title | Desenvolvimento de catalisadores mássicos para decomposição do óxido nitroso para aplicações aeroespaciais  | |||
| Year | 2015 | |||
| Access Date | 2024, May 19 | |||
| Secondary Type | PRE CN | |||
| Number of Files | 1 | |||
| Size | 1750 KiB | |||
| 2. Context | ||||
| Author | 1 Okamoto, Sayuri 2 Maschio, Leandro José 3 Bueno, José Maria Correa 4 Vieira, Ricardo | |||
| Resume Identifier | 1 2 3 4 8JMKD3MGP5W/3C9JJ68 | |||
| Group | 1 LCP-CTE-INPE-MCTI-GOV-BR 2 LCP-CTE-INPE-MCTI-GOV-BR 3 4 LCP-CTE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade Federal de São Carlos (UFSCar) 4 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 sayuri@lcp.inpe.br 2 3 4 rvieira@lcp.inpe.br | |||
| Conference Name | Congresso Brasileiro de Catálise, 18 | |||
| Conference Location | Porto Seguro, BA | |||
| Date | 13-17 set. | |||
| History (UTC) | 2015-09-15 18:48:43 :: simone -> administrator :: 2018-06-04 02:55:39 :: administrator -> simone :: 2015 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | mixed oxides bulk catalysts N2O decomposition thruster | |||
| Abstract | Foram preparados catalisadores mássicos, à base de óxidos Co, Mn e Al, para decomposição do óxido nitroso (N2O) para fins aeroespaciais a partir do método da coprecipitação. Este método consiste na coprecipitação de soluções de nitratos de Co, Mn e Al em solução de K2CO3, a 25°C, mantendo o pH em 10 pela adição de uma solução de KOH. Foram preparadas diversas razões molares: 4Co1Mn1Al, 1Co4Mn1Al, 1Co2Mn, 2Co1Mn, 1Mn2Al e 1Co2Al. Estes óxidos foram extrusados, calcinados a 900°C e caracterizados por Adsorção de Nitrogênio, Quimissorção de CO, Termogravimetria, Difratometria de Raios-X e por Espectroscopia de Fotoelétrons Excitados por Raios-X (XPS). Inicialmente foram efetuados testes catalíticos em um reator de leito fixo para avaliação da atividade dos catalisadores na temperatura de ignição da reação de decomposição do N2O. Em seguida foram executados testes em um propulsor de 2 N, empregando o catalisador com melhor desempenho nos testes catalíticos (4Co1Mn1Al), para verificar o performance do material, comparando com os valores teóricos. Foi, ainda, realizado um teste comparativo de desempenho com o catalisador 5% Rh2O3/Al2O3, tradicionalmente usado na decomposição do N2O. ABSTRACT: Cobalt, manganese and aluminum oxide-based bulk catalysts were prepared by the coprecipitation method for decomposition of nitrous oxide (N2O) for aerospace applications. Nitrates solutions of cobalt, manganese, and aluminum were coprecipitated in a K2CO3 solution at 25°C, with pH maintained at 10 by adding a KOH solution. Several oxides (4Co1Mn1Al, 1Co4Mn1Al, 1Co2Mn, 2Co1Mn, 1Mn2Al, 1Co2Al) were prepared, extruded and calcined at 900°C. These materials were characterized by N2 Adsorption, CO Chemisorption, Thermogravimetry, X-Ray Diffraction, and X-ray Excited Photoelectron Spectroscopy (XPS). The catalytic tests were first performed in a fixed bed reactor in order to evaluate the catalytic activity around the N2O decomposition temperature. Afterwards, tests on a 2 N thruster were carried out with the catalyst that has shown the best performance in the fixed bed reactor (4Co1Mn1Al) and the experimental results were compared to theoretical values. In addition, the performance of the bulk catalyst was compared to the conventional catalyst (5% Rh2O3/Al2O3) for N2O decomposition. | |||
| Area | COMB | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Desenvolvimento de catalisadores... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34P/3K93PTL | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34P/3K93PTL | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ET38CH | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.59.12 5 sid.inpe.br/bibdigital/2013/09.25.23.49 1 sid.inpe.br/bibdigital@80/2006/04.07.15.50.13 1 | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn label language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||