Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Cyro Takano"'
Publikováno v:
Journal of Materials Research and Technology, Vol 6, Iss 3, Pp 258-270 (2017)
We present a numerical simulation procedure for analyzing hydrogen, oxygen and carbon dioxide gases injections mixed with pulverized coals within the tuyeres of blast furnaces. Effective use of H2 rich gas is highly attractive into the steelmaking bl
Externí odkaz:
https://doaj.org/article/1c93500ad3fb436fb825eda08bb823f0
Publikováno v:
Materials Research, Vol 19, Iss 6, Pp 1344-1350 (2016)
The influence of binders on the mechanical properties of chromite, self-reducing pellets, after subjecting to high temperatures, is analyzed in this paper. Bentonite, sodium silicate, and a combination of bentonite with carboxymethyl cellulose (CMC)
Externí odkaz:
https://doaj.org/article/622d92fe66c54bbdb23fa5a76dc2e1d3
Publikováno v:
Materials Research, Vol 13, Iss 2, Pp 191-195 (2010)
Iron-carbon nuggets can be obtained by high temperature reduction of iron ore by carbonaceous material when both are agglomerated together as a carbon composite pellet. During this process, the stable oxides contained in the materials will form a sla
Externí odkaz:
https://doaj.org/article/8bf376b7cec4490eb1f3d287b72288ff
Publikováno v:
Songklanakarin Journal of Science and Technology (SJST), Vol 31, Iss 4, Pp 433-439 (2009)
Fe-Cr-C production is a very high electrical energy consuming process. When self-reducing agglomerates are used,it is expected to reduce up to 10% of this electrical energy. This paper presents the fundamental aspects of the reactions involved for re
Externí odkaz:
https://doaj.org/article/68788067cd2b454289181be4145fc874
Autor:
João Guilherme Rocha Poço, T.R. Ribeiro, Leiv Kolbeinsen, J.B. Ferreira Neto, Cyro Takano, Eli Ringdalen
Publikováno v:
Journal of Materials Research and Technology (JMR&T)
Journal of Materials Research and Technology, Vol 13, Iss, Pp 1576-1585 (2021)
Journal of Materials Research and Technology, Vol 13, Iss, Pp 1576-1585 (2021)
The C–O–H2 ternary diagram is presented to characterize the carbon activity in equilibrium with gas mixtures containing CH4, CO, CO2, H2O, and H2 at different temperatures and pressures. The three reactions for carbon deposition from CH4, CO, and
Autor:
Tiago Ramos Ribeiro, João Batista Ferreira Neto, João Guilherme Rocha Poço, Cyro Takano, Leiv Kolbeinsen, Eli Ringdalen
Publikováno v:
ISIJ International
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The kinetics of steam reforming of methane catalyzed by sponge iron was studied at temperatures between 875°C and 1050°C. Results shows that sponge iron acts as a catalyst and methane conversion is increased in higher temperatures and with a higher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30fcc248dd1def99d66a29ba257127e1
https://hdl.handle.net/11250/3048775
https://hdl.handle.net/11250/3048775
Autor:
Cyro Takano
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
A sinterização de finos de minério de ferro é utilizada já há mais de 5 decênios, embora o maior impulso tenha-se verificado na década de 1950-1960. No Brasil, a Companhia Siderúrgica Belgo Mineira foi a pioneira nesses estudos, já em 1938
Autor:
Tiago Ramos Ribeiro, João Batista Ferreira Neto, João Guilherme Rocha Poço, Leiv Kolbeinsen, Cyro Takano, Eli Ringdalen
Publikováno v:
ISIJ International
Direct Reduction processes use gases (CO and H2) for iron reduction and production of sponge iron or direct reduced iron (DRI). The generation of this gas occurs through methane reforming, which can be done in a reformer or inside the reduction shaft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc79ef78a4a5464ed6d9af680cd53878
https://hdl.handle.net/11250/2727706
https://hdl.handle.net/11250/2727706
Autor:
Jun-ichiro Yagi, Cyro Takano, José Adilson de Castro, Elizabeth Mendes de Oliveira, Marcos Flavio de Campos
Publikováno v:
Journal of Cleaner Production. 198:654-661
The steel industry has faced challenges with regard to the raw materials and fuels and hence economic and environmental restrictions. This paper is focused on searching alternatives based on biomass and gaseous fuels suitable for replacing the coke b
Autor:
Cyro Takano, E. R. de Castro, J.T. Senise, Luiz Alberto Jermolovicius, Marcelo Breda Mourão, R. B. do Nascimento, E. V. dos S. Pouzada
Publikováno v:
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
This work deals with the evaluation of two microwave cavity geometric shapes used experimentally to obtain reaction rates of iron ore pellets in a carbothermic reduction process. Parallepipedic and hexahedral cavities were used. Computer simulation s