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© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Catalytic upgrading of vapors from pyrolysis of triglycerides materials is a promising approach to achieve better conversions of hydrocarbons and production of liquid biofuels. Catalytic cracking often shows incomplete conversion due to distillation of initial reaction products and the addition of a second catalytic reactor, whereas pyrolytic vapors are made in contact to a solid catalyst was applied to improve the physical-chemical properties and quality of bio-oil. This work investigated the effect of catalyst content and reaction time by catalytic upgrading from pyrolysis vapors of residual fat at 450 °C and 1.0 atmosphere, on the yields of reaction products, physicochemical properties (density, kinematic viscosity, refractive index, and acid value), and chemical composition of organic liquid products (OLP), over a catalyst fixed bed reactor, in semi pilot scale. Pellets of red mud chemically activated with 1.0 M HCl were used as catalysts. The thermal catalytic cracking of residual fat show OLP yields from 54.4 to 84.88 (wt.%), aqueous phase yields between 2.21 and 2.80 (wt.%), solid phase yields (coke) between 1.30 and 8.60 (wt.%), and gas yields from 11.61 to 34.22 (wt.%). The yields of OLP increases with catalyst content while those of aqueous, gaseous and solid phase decreases. For all experiments, the density, kinematic viscosity, and acid value of OLP decreases with reaction time. The GC-MS of liquid reaction products identified the presence of hydrocarbons and oxygenates. In addition, the hydrocarbon content in OLP increases with reaction time, while those of oxygenates decrease, reaching concentrations of hydrocarbons up to 95.35% (area.). The best results for the physicochemical properties and the maximum hydrocarbon content in OLP were obtained at 450 °C and 1.0 atmosphere, using a catalyst fixed bed reactor, with 5.0% (wt.) red mud pellets activated with 1.0 M HCl as catalyst.

Details

Title
Improving Fuel Properties and Hydrocarbon Content from Residual Fat Pyrolysis Vapors over Activated Red Mud Pellets in Two-Stage Reactor: Optimization of Reaction Time and Catalyst Content
Author
Caio Campos Ferreira 1 ; Lucas Pinto Bernar 1 ; Augusto Fernando de Freitas Costa 1 ; Haroldo Jorge da Silva Ribeiro 1 ; Marcelo Costa Santos 1   VIAFID ORCID Logo  ; Nathalia Lobato Moraes 2 ; Yasmin Santos Costa 2 ; Ana Cláudia Fonseca Baia 2 ; Neyson Martins Mendonça 2 ; Sílvio Alex Pereira da Mota 3 ; Fernanda Paula da Costa Assunção 4 ; Douglas Alberto Rocha de Castro 5   VIAFID ORCID Logo  ; Carlos Castro Vieira Quaresma 5   VIAFID ORCID Logo  ; DuvoisinJr, Sergio 6 ; Pizarro Borges, Luiz Eduardo 7 ; Nélio Teixeira Machado 8   VIAFID ORCID Logo 

 Graduate Program of Natural Resources Engineering of Amazon, Campus Profissional-UFPA, Universidade Federal do Pará, Rua Augusto Corrêa N° 1, Belém 66075-110, Brazil; [email protected] (C.C.F.); [email protected] (L.P.B.); [email protected] (A.F.d.F.C.); [email protected] (H.J.d.S.R.); [email protected] (M.C.S.) 
 Faculty of Sanitary and Environmental Engineering, Campus Profissional-UFPA, Universidade Federal do Pará, Rua Corrêa N° 1, Belém 66075-900, Brazil; [email protected] (N.L.M.); [email protected] (Y.S.C.); [email protected] (A.C.F.B.); [email protected] (N.M.M.) 
 Graduate Program of Chemistry, Universidade Federal do Sul e Sudeste do Pará, Folha 31, Quadra 7, Lote Especial-Nova Marabá, CEP, Marabá 68507-590, Brazil; [email protected] 
 Graduate Program of Civil Engineering, Campus Profissional-UFPA, Universidade Federal do Pará, Rua Augusto Corrêa N° 1, Belém 66075-110, Brazil; [email protected] 
 Centro Universitário Luterano de Manaus–CEULM/ULBRA, Avenida Carlos Drummond de Andrade N°. 1460, Manaus 69077-730, Brazil; [email protected] (D.A.R.d.C.); [email protected] (C.C.V.Q.) 
 Faculty of Chemical Engineering, Universidade do Estado do Amazonas-UEA, Avenida Darcy Vargas N°. 1200, Manaus 69050-020, Brazil; [email protected] 
 Laboratory of Catalyst Preparation and Catalytic Cracking, Section of Chemical Engineering, Instituto Militar de Engenharia-IME, Praça General Tibúrcio N°. 80, Rio de Janeiro 22290-270, Brazil; [email protected] 
 Graduate Program of Natural Resources Engineering of Amazon, Campus Profissional-UFPA, Universidade Federal do Pará, Rua Augusto Corrêa N° 1, Belém 66075-110, Brazil; [email protected] (C.C.F.); [email protected] (L.P.B.); [email protected] (A.F.d.F.C.); [email protected] (H.J.d.S.R.); [email protected] (M.C.S.); Faculty of Sanitary and Environmental Engineering, Campus Profissional-UFPA, Universidade Federal do Pará, Rua Corrêa N° 1, Belém 66075-900, Brazil; [email protected] (N.L.M.); [email protected] (Y.S.C.); [email protected] (A.C.F.B.); [email protected] (N.M.M.) 
First page
5595
Publication year
2022
Publication date
2022
Publisher
MDPI AG
e-ISSN
19961073
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2700621909
Copyright
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.