Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Reginaldo Guirardello"'
Publikováno v:
Chemical Engineering Transactions, Vol 109 (2024)
Hydrates are crystalline structures composed of water molecules and low molecular weight compounds, formed under appropriate conditions of pressure and temperature. Depending on the circumstances, these crystalline solids can be seen as a problem or
Externí odkaz:
https://doaj.org/article/b018e4e2059e49e48c0f8e91e4e5f2ee
Autor:
Amanda C.C. Maia, Julles Mitoura dos Santos Junior, Annamaria Doria Vidotti, Antonio C.D. Freitas, Reginaldo Guirardello
Publikováno v:
Chemical Engineering Transactions, Vol 109 (2024)
In this paper a comparative study is presented between thermochemical routes of pyrolysis (PR), Supercritical water gasification (SCWG), steam reforming (SR), oxidative reforming (OR) and autothermal reforming (ATR) aiming hydrogen production from li
Externí odkaz:
https://doaj.org/article/b3872014efa44d39bcabfdf30313a0a2
Autor:
Julles Mitoura dos Santos Junior, Annamaria Doria Vidotti, Antonio C.D. Freitas, Reginaldo Guirardello
Publikováno v:
Chemical Engineering Transactions, Vol 109 (2024)
From the pulp and paper industry, black liquor is a process byproduct obtained from the digester discharge and is primarily composed of lignin, hemicellulose, cellulose residues, and water. Managing this byproduct is a critical aspect of the industry
Externí odkaz:
https://doaj.org/article/f05f8cf11edb4cfe97e8805b8e462e83
Publikováno v:
Chemical Engineering Transactions, Vol 109 (2024)
The production of ethanol from lignocellulosic biomass is more complex in relation to ethanol produced from feedstock containing sugars or starch, since it requires the conversion of polysaccharides, cellulose or hemicellulose, into fermentable sugar
Externí odkaz:
https://doaj.org/article/f8af60ae957043168d46de80286d5b2c
Publikováno v:
Chemical Engineering Transactions, Vol 109 (2024)
This work aimed to evaluate the catalytic activity of the catalysts niobium phosphate (PNb), niobium acid (HNb) and the 1:1 mechanical mixture of both catalysts (HPNb) based on the results obtained for the yield of glucose, xylose, 5-hydroxymethylfur
Externí odkaz:
https://doaj.org/article/10cc76cbfa8449808deb11b78ede6d69
Autor:
Matheus Henrique Silva Cavalcante, Ícaro Augusto Maccari Zelioli, Emílio Émerson Xavier Guimarães Filho, Julles Mitoura dos Santos Júnior, Annamaria Dória Souza Vidotti, Antonio Carlos Daltro de Freitas, Reginaldo Guirardello
Publikováno v:
Methane, Vol 2, Iss 4, Pp 389-403 (2023)
In this paper, we analyze the autothermal reforming (ATR) of methane through Gibbs energy minimization and entropy maximization methods to analyze isothermic and adiabatic systems, respectively. The software GAMS® 23.9 and the CONOPT3 solver were us
Externí odkaz:
https://doaj.org/article/c79182d3fc8c42e0b4eea9fedd0ecc6c
Autor:
Julles Mitoura dos Santos Junior, Jan Galvão Gomes, Antônio Carlos Daltro de Freitas, Reginaldo Guirardello
Publikováno v:
Methane, Vol 1, Iss 4, Pp 243-261 (2022)
The thermal cracking process of methane does not present the emissions of polluting gases, forming only hydrogen with a high degree of purity and solid carbon that can be commercialized for other industrial purposes globally. Thermodynamic methodolog
Externí odkaz:
https://doaj.org/article/355c6a5c95ba4ba4afff22b1bd4e3539
Publikováno v:
Chemical Engineering Transactions, Vol 100 (2023)
Contrary to the methane steam reforming process, the methane thermal cracking route forms only hydrogen and solid carbon throughout the process. The generated hydrogen has a high degree of purity, and the solid carbon can be commercialized for other
Externí odkaz:
https://doaj.org/article/7fa8f6fc07b44eb3ab12fddb8352e7b4
Autor:
Pamela Palhares, Reginaldo Guirardello
Publikováno v:
Chemical Engineering Transactions, Vol 100 (2023)
This study refers to the simulation and analysis of fluid dynamics in a bubble column in fully developed flow through two numerical approaches, the variational method, and the finite volume method. For simplicity purposes, a zero-order turbulence mod
Externí odkaz:
https://doaj.org/article/d2434491a9a04b038aac9d3d553b6a4a
Autor:
Isabela M. Dias, Lucas C. Mourão, Guilherme B. M. De Souza, Jose M. Abelleira-Pereira, Julles M. Dos Santos-Junior, Antônio C. D. De Freitas, Lucio Cardozo-Filho, Christian G. Alonso, Reginaldo Guirardello
Publikováno v:
Water, Vol 16, Iss 1, p 125 (2023)
Pharmaceutical pollutants are considered emerging contaminants, representing a significant concern to the ecosystem. Thus, this study reports on the degradation of antihypertensive and cardiovascular drugs (atenolol, captopril, propranolol hydrochlor
Externí odkaz:
https://doaj.org/article/0edffc48c2164ee4b67bea7ca2c95316