| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YDb/KbH6A |
| Repository | sid.inpe.br/iris@1917/2006/02.16.11.05 |
| Last Update | 2006:02.16.11.05.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/iris@1917/2006/02.16.11.05.27 |
| Metadata Last Update | 2018:06.05.03.43.39 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| ISSN | 0103-5053 |
| Citation Key | KellerVieNhuPhaLed:2005:SiCaSu |
| Title | New catalysts based on silicon carbide support for improvements in the sulfur recovery: silicon carbide as support for the selective H2S oxidation  |
| Year | 2005 |
| Month | Mar.-Apr. |
| Access Date | 2024, May 19 |
| Secondary Type | PRE PN |
| Number of Files | 1 |
| Size | 510 KiB |
| 2. Context | |
| Author | 1 Keller, Nicolas 2 Vieira, Ricardo 3 Nhut, Jean-Mario 4 Pham-Huu, Cuong 5 Ledoux, Marc-Jaques |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJ68 |
| Group | 1 LCP-INPE-MCT-BR |
| Affiliation | 1 Université Louis Pasteur 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Journal | Journal of the Brazilian Chemical Society |
| Volume | 16 |
| Number | 2 |
| Pages | 202-209 |
| History (UTC) | 2006-06-01 17:49:48 :: ignes -> administrator :: 2012-10-22 22:26:11 :: administrator -> ignes :: 2005 2012-11-19 12:00:31 :: ignes -> banon :: 2005 2012-11-19 12:02:54 :: banon -> administrator :: 2005 2012-11-19 12:05:20 :: administrator -> ignes :: 2005 2012-11-19 12:06:57 :: ignes -> banon :: 2005 2012-11-19 12:08:51 :: banon -> ignes :: 2005 2013-02-20 14:54:14 :: ignes -> administrator :: 2005 2018-06-05 03:43:39 :: administrator -> marciana :: 2005 |
| 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 | silicon carbide catalyst support sulfur recovery H2S oxidation hydrophilicity |
| Abstract | Abstract - The NiS2 and Fe2O3 active phases supported on medium surface area β-silicon carbide (SiC) showed high activity, selectivity and stability in the direct oxidation of H2S into elemental sulfur. The catalysts were tested under a large range of temperatures, from room temperature using Ni (tricklebed reactor) to over-dewpoint temperatures using Fe (fixed bed reactor). For both cases, the formation on stream of a Ni and Fe oxysulfide high active phase was proposed by oxidation of NiS2 and sulfidation of Fe2O3, respectively. The absence of microporosity in the support contributed to the high selectivity into sulfur. At low temperatures (below 100 °C), the high stability of β-SiC supported catalysts towards the solid sulfur loading was explained by a specific mode of sulfur deposition, involving the role of water in the feed and the heterogeneous nature of the SiC surface, being partly hydrophilic and hydrophobic. Resumo - As fases ativas NiS2 e Fe2O3 suportadas em β-carbeto de silício (SiC) com média área específica mostraram alta atividade, seletividade e estabilidade na oxidação direta do H2S a enxofre elementar. Os catalisadores foram testados a temperaturas que variaram da temperatura ambiente, no caso do Ni em reator de leito gotejante, até temperaturas superiores à do ponto de orvalho do enxofre, no caso do Fe em reator de leito fixo. Para ambos os casos, foi proposta a formação de uma fase bastante ativa de oxisulfeto de Ni ou de Fe, formada pela oxidação do NiS2 e pela sulfuração do Fe2O3. A ausência de microporosidade no suporte contribuiu à alta seletividade do catalisador. A grande estabilidade ao carregamento de enxofre sólido, apresentada pelos catalisadores suportados em SiC em temperaturas inferiores a 100 °C, foi explicada pela maneira especial da deposição do enxofre, a qual depende do papel da água presente na reação e do caráter heterogêneo (hidrofílico e hidrofóbico) da superfície do suporte. |
| Area | COMB |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > New catalysts based... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZ3r59YDb/KbH6A |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZ3r59YDb/KbH6A |
| Language | en |
| Target File | new1.pdf |
| User Group | administrator banon ignes |
| Reader Group | administrator banon ignes |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ET38CH |
| Citing Item List | sid.inpe.br/bibdigital@80/2006/04.07.15.50.13 2 |
| Dissemination | WEBSCI; PORTALCAPES; SCIELO. |
| Host Collection | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |