Transesterification of soybean oil using a switchable-hydrophilicity solvent, 2-(dibutylamino)ethanol

Viner, Kelsey; Roy, Hannah M.; Lee, Roland; He, Ouwen; Champagne, Pascale; Jessop, Philip G.

doi:10.1039/c9gc00241c

Cited by 19 publications

(13 citation statements)

References 24 publications

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“…The formation of bicarbonate in the presence of tertiary amines, governed by the electron-donating strength of the nitrogen center in the nitrogenous base, enables reversible hydrophilicity switching upon addition/removal of CO 2 . 6 Despite substantial advancements in the performance and applications of SHSs, 16,17 two major issues hinder their development: (i) mass transfer-limited LLE, resulting in extraction times in the order of 1−10 h/experiment 6,18 and (ii) the massive chemical/process parameter space associated with SHSs, 6 with a limited available chemical database. Currently, both fundamental and applied studies of SHSs are conducted using batch reactors.…”

Section: Nr H O Co Nr H Hcomentioning

confidence: 99%

“…Despite substantial advancements in the performance and applications of SHSs, , two major issues hinder their development: (i) mass transfer-limited LLE, resulting in extraction times in the order of 1–10 h/experiment , and (ii) the massive chemical/process parameter space associated with SHSs, with a limited available chemical database. Currently, both fundamental and applied studies of SHSs are conducted using batch reactors.…”

Section: Introductionmentioning

confidence: 99%

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Accelerated Material-Efficient Investigation of Switchable Hydrophilicity Solvents for Energy-Efficient Solvent Recovery

Han

Raghuvanshi

Abolhasani

2020

ACS Sustainable Chem. Eng.

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In most chemical industries, solvent removal and recovery processes are heavily dependent on hazardous volatile solvents with energy-intensive distillation processes because of their ease of separation. An emerging promising alternative is implementing switchable solvents with on-demand and reversible switching of their physiochemical properties triggered by carbon dioxide (CO 2 ). Utilization and widespread implementation of switchable solvents can dramatically reduce environmental risks and energy requirements for solvent removal and recovery processes. Despite intriguing characteristics of switchable solvents, the time-and material-intensive nature of conventional batch strategies has hindered a comprehensive understanding of this exciting class of green solvents. Herein, we report an accelerated time-and material-efficient (green) flow chemistry strategy for in situ fundamental and applied studies of CO 2 -mediated switchable solvents. Utilizing a highly gas-permeable membrane microreactor increases the gas−liquid interfacial area for CO 2 injection, thereby enhancing the gas−liquid mass transfer (∼60 times faster equilibrium time than a batch reactor), while minimizing the chemical consumption (∼1000 times less than a batch reactor) and waste generation (∼1500 times less than a batch reactor) for each solventswitching experiment. Utilizing the developed green flow chemistry strategy, we comprehensively study the effects of continuous and discrete process parameters on the efficiency and kinetics of hydrophilicity switching of switchable solvents. The intensified CO 2triggered switchable hydrophilicity solvent extraction process allows accurate material-efficient studies of switchable solvents and therefore will accelerate the development and adoption of distillation-free, green, and sustainable solvent recovery strategies in chemical industries.

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Section: Nr H O Co Nr H Hcomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accelerated Material-Efficient Investigation of Switchable Hydrophilicity Solvents for Energy-Efficient Solvent Recovery

Han

Raghuvanshi

Abolhasani

2020

ACS Sustainable Chem. Eng.

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“…56 O método de transesterificação envolve parâmetros de controle que afetam o sistema de conversão, entre eles o tipo e pureza do álcool utilizado (principalmente metanol ou etanol), temperatura (geralmente perto do ponto de ebulição do álcool), agitação para garantir um correto grau de mistura, tipo de catalisador e teor de umidade, já que a presença de água gera efeitos negativos, como a formação de sabão e envenenamento do catalisador. [58][59][60][61][62] De acordo com o catalisador utilizado, a transesterificação é classificada como homogênea alcalina, homogênea ácida, heterogênea, enzimática e com fluidos supercríticos. [63][64][65] Em razão da transesterificação ser o procedimento mais usado industrialmente para a obtenção de biodiesel a partir de óleos vegetais, uma proposta com as diferentes etapas para produzir o biocombustível a partir de óleo refinado de lupino encontra-se ilustrada na Figura 7. O processo começa com a etapa de homogeneização, onde os reagentes são misturados a fim de contribuir com a miscibilidade do sistema e garantir o contato dos reagentes.…”

Section: Produção Teórica De Biodiesel a Partir De óLeo De Lupinounclassified

Potential of Andean lupine (Lupinus mutabilis) for biodiesel production via methanolic route: A review

Zamora¹,

Zamora-Burbano²,

Varão³

et al. 2020

Rev. Virtual Quim.

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Biodiesel can be obtained from extracted oil of different oilseeds. The production of this biofuel is carried out by several routes, among them the most common way involves two main stages: the first one related to oil extraction from oilseeds and the second one, includes the conversion of that oil into biodiesel. This review work presents a technical feasibility study about production and use of Andean lupine oil (Lupinis mutabilis) for biodiesel production through methanolic route. Besides, it is described some theoretical physic-chemical properties of Andean lupine biodiesel obtained by mathematical. According to similarity of physic-chemical characteristics between Andean lupine and soy oils, it can be evidenced the possibility of utilization of Andean lupine seeds for bioenergy. The theoretical properties calculated for Andean lupine biodiesel, such as density (20ºC), cetane index, heat power and dynamic viscosity (40ºC) are close to soy biodiesel properties and befitting with the limits stablished by Brazilian laws that regulate the biodiesel industry. Considering the exhibited data in this work, it can be affirmed, from a technical point of view, that Andean lupine can be considered promising for energy market, especially for the Andes ecoregion. However, the suggested processes should be experimentally implemented with the purpose to assess the proposed conditions and thus to compare the theoretical approaches, due to the properties of Andean lupine biodiesel were not found in experimental data of biodiesel production from Andean lupine seeds. O biodiesel pode ser obtido a partir do óleo extraído de diferentes oleaginosas. A produção deste biocombustível é realizada por meio de várias rotas, entre elas a mais comum envolve duas etapas principais: a primeira relacionada com a extração do óleo das sementes e a segunda, com a conversão deste óleo em biodiesel. O presente trabalho de revisão apresenta um estudo de viabilidade técnica de produção e utilização do óleo do lupino (Lupinis mutabilis) para cadeia produtiva de biodiesel por rota metílica, bem como descreve algumas propriedades físico-químicas teóricas do biodiesel de lupino obtidas por meio de modelos. Diante da similitude das características físico-químicas dos óleos de lupino e de soja, evidencia-se a possibilidade de utilização desta oleaginosa para o setor da bioenergia. As propriedades teóricas calculadas, como densidade (20ºC), número de cetano, poder calorífico e viscosidade cinemática (40ºC), para biodiesel de lupino apresentam-se próximas as do biodiesel de soja e condizentes com os limites estabelecidos pelas normas que regulamentam o setor no Brasil. Frente aos dados elucidados neste estudo, pode-se afirmar que do ponto de vista técnico a oleaginosa lupino pode ser considerada promissora para o mercado da energia, notadamente para a ecorregião dos Andes, no entanto os processos sugeridos devem ser implementados experimentalmente com o propósito de avaliar as condições propostas e assim comparar as aproximações teóricas, uma vez que não fo...

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“…O cultivo de culturas agroenergéticas, ou seja, culturas utilizadas para produção de energia é uma alternativa ao uso dos combustíveis derivados do petróleo (Torres-García et al, 2019;Staples et al, 2018). Os biocombustíveis, principalmente, o biodiesel e etanol, apresentam-se como uma das alternativas renováveis para substituição dos carburantes derivados de petróleo (Viner et al, 2019;Sunarno et al, 2019).…”

Section: Introductionunclassified

Aplicação de Resíduos da Indústria Sucroalcooleira em Solo como Forma de Mitigar Impactos Ambientais

Lucena

Rolim

Dutra

et al. 2021

Rev. Bras. Geog. Fis.

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A adoção de práticas que minimize os impactos ambientais e melhoria da fertilidade do solo para exploração agrícola tem sido realizada com maior frequência. O presente trabalho teve como objetivo avaliar a qualidade do solo em áreas com diferentes doses de vinhaça e torta de filtro sobre os atributos químicos do solo. O experimento foi realizado na Estação Experimental do IPA, Vitória de Santo Antão - PE, constituído de dois tratamentos e cinco níveis de aplicação de doses de vinhaça 0;19,42; 77,68; 155,36 e 310,72 m3 ha-1) e cinco doses de torta de filtro (0; 2,75; 11,0; 22,0 e 44,0 t ha-1), em blocos casualizados com quatro repetições. Os dados obtidos foram submetidos à análise de variância e de regressão, utilizando o software SAS, com níveis de significância de 5% para o teste F. Com relação aos atributos químicos do solo tratados com torta de filtro foram verificados efeitos lineares significativos (p<0,05) para os teores de fósforo, cálcio e capacidade de troca de cátions (CTC) no solo. Relacionado a vinhaça foi verificado efeito quadrático significativo (p<0,05) proporcionando redução no teor de fósforo no solo, posteriormente, ocorrendo incremento de 8,88% com a dose máxima aplicada. Os resíduos aplicados torta de filtro e vinhaça promoveram melhoria nas propriedades químicas do solo potencializando seu uso na agricultura. Application of Waste from the Sugar Alcohol Industry in Soil as a Way to Mitigate Environmental Impacts A B S T R A C TThe adoption of practices that minimize environmental impacts and improve soil fertility for agricultural exploitation has been carried out with greater frequency. This work aimed to evaluate the soil quality in areas with different doses of vinasse and filter cake on the chemical attributes of the soil. The experiment was carried out at the IPA Experimental Station, Vitória de Santo Antão - PE, consisting of two treatments and five levels of application of vinasse doses 0; 19,42; 77.68; 155.36 and 310.72 m3 ha-1) and five doses of filter cake (0; 2.75; 11.0; 22.0 and 44.0 t ha-1), in randomized blocks with four replications. The data obtained were submitted to analysis of variance and regression, using the SAS software, with significance levels of 5% for the F test. Regarding the chemical attributes of the soil treated with filter cake, significant linear effects were verified (p < 0.05) for phosphorus, calcium and cation exchange capacity (CTC) in the soil. Related to vinasse, a significant quadratic effect (p <0.05) was observed, providing a reduction in the phosphorus content in the soil, subsequently, with an increase of 8.88% with the maximum applied dose. The residues applied filter cake and vinasse promoted an improvement in the chemical properties of the soil, enhancing its use in agriculture.Keywords: filter cake, vinasse, soil attributes, conditioners, fertility.

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Transesterification of soybean oil using a switchable-hydrophilicity solvent, 2-(dibutylamino)ethanol

Abstract: Employing 2-dibutylaminoethanol as both base and solvent for transesterification produces biodiesel and glycerol uncontaminated with metal salts and allows the base/solvent to be easily re-used.

Cited by 19 publications

References 24 publications

Accelerated Material-Efficient Investigation of Switchable Hydrophilicity Solvents for Energy-Efficient Solvent Recovery

Accelerated Material-Efficient Investigation of Switchable Hydrophilicity Solvents for Energy-Efficient Solvent Recovery

Potential of Andean lupine (Lupinus mutabilis) for biodiesel production via methanolic route: A review

Aplicação de Resíduos da Indústria Sucroalcooleira em Solo como Forma de Mitigar Impactos Ambientais

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