Residue-Based CaO Heterogeneous Catalysts from Crab and Mollusk Shells for FAME Production Via Transesterification

Cardoso, Claudia Cristina; Cavalcanti, Alexsandro S.; Silva, Ricardo Oliveira; Alves, Severino; Sousa, Fabiana P. de; Pasa, Vânya Márcia Duarte; Arias, Santiago; Pacheco, José Geraldo A.

doi:10.21577/0103-5053.20190240

Cited by 4 publications

(7 citation statements)

References 35 publications

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“…Este estudo não apenas enfatiza a eficácia da modificação na otimização do catalisador, mas também ressalta a aplicação promissora de resíduos de concha de ostra e rejeitos de estanho na produção de biodiesel, abrindo caminhos para uma abordagem sustentável e avançada na indústria de biocombustíveis. Cardoso et al (2020) realizaram uma investigação acerca de catalisadores heterogêneos de CaO originados de quatro distintos tipos de resíduos: sururu, caranguejo, ameijoa e mexilhão. O propósito era a produção de biodiesel via transesterificação.…”

Section: Resultsunclassified

“…Além disso, ressalta a alta basicidade e a área de superfície ampliada desses catalisadores, contribuindo para uma atividade catalítica mais eficiente. Isso se traduziu em rendimentos significativos de biodiesel, como evidenciado nos estudos de Suryaputra et al (2013), Karkal et al (2023) e Cardoso et al (2020), nos quais os rendimentos de 97%, 88,56% e 93,7%, respectivamente, são notáveis utilizando o catalisador oriundo de concha. Outra descoberta importante foi a capacidade de reutilização desses catalisadores.…”

Section: Discussionunclassified

“…Infelizmente, uma grande parcela desses resíduos costuma ser descartada a céu aberto, sem passar por qualquer tratamento ao longo de períodos prolongados, resultando em um sério desafio tanto ambiental quanto de saúde pública (CARDOSO et al, 2020;LING et al, 2019) No cenário brasileiro, inúmeras comunidades costeiras dependem da pesca artesanal como principal fonte de subsistência, e a questão dos resíduos das conchas é uma preocupação a nível nacional. Apesar disso, atualmente não há iniciativas de aproveitamento desses materiais.…”

Section: Introductionunclassified

“…Apesar disso, atualmente não há iniciativas de aproveitamento desses materiais. Apenas no ano de 2011, aproximadamente 5.900 toneladas de moluscos bivalves foram capturadas na costa brasileira (CARDOSO et al, 2020). Diante do exposto, objetivou-se fazer o levantamento bibliográfico de trabalhos que obtiveram o óxido de cálcio a partir de conchas a fim de avaliar o desempenho deste óxido como catalisador heterogêneo na produção de biodiesel.…”

Section: Introductionunclassified

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Óxido De Cálcio Oriundo De Concha Como Catalisador Heterogêneo Na Produção De Biodiesel: Uma Revisão

Alves Gomes,

Giménez Barañano,

Guimarães

2023

Anais Do XXVII INIC, XXIII EPG, XVII INIC Jr, XIII INID, III ENEXUN

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Section: Resultsunclassified

Section: Discussionunclassified

Section: Introductionunclassified

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Óxido De Cálcio Oriundo De Concha Como Catalisador Heterogêneo Na Produção De Biodiesel: Uma Revisão

Alves Gomes,

Giménez Barañano,

Guimarães

2023

Anais Do XXVII INIC, XXIII EPG, XVII INIC Jr, XIII INID, III ENEXUN

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“…These products as well as microbial growth affect the quality properties of the biodiesel [6]. Finally, a limited quality biodiesel can appear when problems in the production process lead to the formation of an off-spec product with excess impurities such as soaps, glycerol or catalyst [7][8]. Another concern is the addition of an antioxidant to avoid the degradation of biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Deoxygenation of Oleic Acid Methyl Ester in FCC Process Conditions Over Protonated and Sodium Exchanged Y and ZSM-5 Zeolites

Padilha

Fréty

Santos

et al. 2021

Waste Biomass Valor

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One way to take advantage from out of speci cation biodiesel and waste from biodiesel tank bottom drainage is to co-process them in a uidized catalytic cracking (FCC) unit. The present work deals with the cracking of oleic acid methyl ester (OAME) as a biodiesel model, under conditions close to that of FCC process over ZSM-5 and Y zeolites, either in protonated or sodium forms, for the production of deoxygenated compounds. Catalytic fast cracking of OAME pre-adsorbed on the catalyst surface was performed, with a catalyst:OAME mass ratio of 10:1 in a micro-pyrolysis system at 650°C, coupled to a GC/MS for on line analysis of the products. Results show that the cracking of OAME without a catalyst favored the formation of linear alkenes and polyenes. Fast cracking of OAME over HZSM-5 and HY acidic zeolites led to the production of aromatics, due to hydrogen transfer. Cracking over NaY and HY zeolites produced remarkable amounts of rami ed saturated hydrocarbons. The formation of alkylated hydrocarbons was not signi cant over ZSM-5 zeolite probably due to a small pore size of this zeolite.NaY catalyst favored the production of hydrocarbons in the range of kerosene (C8-C12). Low acidic zeolites favored the production of non-aromatic hydrocarbons. Product distribution was affected by catalyst shape selectivity and acidity. These results show that residues from the biodiesel chain can be directly co-processed in FCC units to obtain high value hydrocarbons, mainly in the jet fuel and gasoline ranges. Statement Of NoveltyThis work shows that oleic acid methyl ester as a model of residues from off-spec biodiesel and waste from biodiesel tank bottom drainage can be directly co-processed in a FCC unit, using ZSM-5 and Y zeolites as catalysts in H-and Na-form. The use of such residues in FCC process can promote the production o high value hydrocarbons, mainly in the jet fuel and gasoline ranges. These results may be of great interest to the growing market for renewable jet fuel since the aviation industry is committed to reduce CO2 emissions towards zero net carbon emissions. To the best of our knowledge, such a systematic study has not been reported yet.

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Deoxygenation of oleic acid methyl ester in FCC process conditions over protonated and sodium exchanged Y and ZSM-5 zeolites

Padilha

Fréty

Santos

et al. 2021

Preprint

View full text Add to dashboard Cite

One way to take advantage from out of specification biodiesel and waste from biodiesel tank bottom drainage is to co-process them in a fluidized catalytic cracking (FCC) unit. The present work deals with the cracking of oleic acid methyl ester (OAME) as a biodiesel model, under conditions close to that of FCC process over ZSM-5 and Y zeolites, either in protonated or sodium forms, for the production of deoxygenated compounds. Catalytic fast cracking of OAME pre-adsorbed on the catalyst surface was performed, with a catalyst:OAME mass ratio of 10:1 in a micro-pyrolysis system at 650°C, coupled to a GC/MS for on line analysis of the products. Results show that the cracking of OAME without a catalyst favored the formation of linear alkenes and polyenes. Fast cracking of OAME over HZSM-5 and HY acidic zeolites led to the production of aromatics, due to hydrogen transfer. Cracking over NaY and HY zeolites produced remarkable amounts of ramified saturated hydrocarbons. The formation of alkylated hydrocarbons was not significant over ZSM-5 zeolite probably due to a small pore size of this zeolite. NaY catalyst favored the production of hydrocarbons in the range of kerosene (C8-C12). Low acidic zeolites favored the production of non-aromatic hydrocarbons. Product distribution was affected by catalyst shape selectivity and acidity. These results show that residues from the biodiesel chain can be directly co-processed in FCC units to obtain high value hydrocarbons, mainly in the jet fuel and gasoline ranges.

show abstract

Residue-Based CaO Heterogeneous Catalysts from Crab and Mollusk Shells for FAME Production Via Transesterification

Cited by 4 publications

References 35 publications

Óxido De Cálcio Oriundo De Concha Como Catalisador Heterogêneo Na Produção De Biodiesel: Uma Revisão

Óxido De Cálcio Oriundo De Concha Como Catalisador Heterogêneo Na Produção De Biodiesel: Uma Revisão

Deoxygenation of Oleic Acid Methyl Ester in FCC Process Conditions Over Protonated and Sodium Exchanged Y and ZSM-5 Zeolites

Deoxygenation of oleic acid methyl ester in FCC process conditions over protonated and sodium exchanged Y and ZSM-5 zeolites

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