New heterogeneous catalyst for the esterification of fatty acid produced by surface aromatization/sulfonation of oilseed cake

Santos, Eduardo A.; Teixeira, Ana Paula C.; Silva, Flávia Gontijo da; Cibaka, Thérèse Ebambi; Araújo, Maria Helena; Oliveira, Willian X. C.; Medeiros, Felipe da Silva; Brasil, Alex Nogueira; Oliveira, Leandro S.; Lago, Rochel M.

doi:10.1016/j.fuel.2015.02.027

Cited by 74 publications

(28 citation statements)

References 56 publications

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“…This indicates that CSO3H has an amphiphilic character, but its interaction with water and polar solvents are more pronounced. Similar observations were described in the paper [24] using biphasic mixture of water and hexane for test. Fig.…”

Section: Characterization Of Catalystsupporting

confidence: 85%

“…Another stretching vibration bands at 3426, 1619 and 1707cm −1 are likely related to the presence of -OH, C=C and C=O (carboxyl) groups in catalyst framework. Similar FT-IR absorbance spectra of Csac were described in the report [10,24].…”

Section: Characterization Of Catalystsupporting

confidence: 62%

“…Further weight loss at temperatures above ~150 o C, refers to the thermal decomposition of various oxygen containing groups (COOH, OH and SO3H) from the framework of catalyst. The authors [24] also observed that the thermal decomposition of COOH, OH and SO3H groups of Csac obtained from lignocellulosic material occurs at temperatures above ~150 o C. Steady weight loss of CSO3H at higher temperature than ~400 o C showed further elimination of oxygen containing groups. Fig.…”

Section: Characterization Of Catalystmentioning

confidence: 90%

“…CSO3H also contains relatively high densities of the weak acid sites, including COOH and phenolic OH from incomplete carbonization of cellulose. The surface of carbon materials has a hydrophobic character which is more important for the interaction with vegetable oil and FFA in biodiesel preparation processes [9,24]. On the other hand, the oxygen containing acidic groups on the surface of catalyst decrease surface hydrophobicity of carbonaceous material.…”

Section: Characterization Of Catalystmentioning

confidence: 99%

“…In the report [21] sulfonation of carbon material was conducted at lower temperature (~80 o C) using H2SO4/SO3 (15 wt.%). Moreover, in the paper [23] the preparation of Csac was performed by partial carbonization-sulfonation of glycerol in single-step at 220 o C. In similar manner a Csac was prepared from residual lignin (derived from Xanthoceras sorbifolia Bunge hulls) [18] and oilseed cake [24] at 150 and 120 o C, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Esterification of rapeseed oil fatty acids using a carbon-based heterogeneous acid catalyst derived from cellulose

Māliņš¹,

Brinks²,

Kampars³

et al. 2016

Applied Catalysis A: General

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Section: Characterization Of Catalystsupporting

confidence: 85%

Section: Characterization Of Catalystsupporting

confidence: 62%

Section: Characterization Of Catalystmentioning

confidence: 90%

Section: Characterization Of Catalystmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Esterification of rapeseed oil fatty acids using a carbon-based heterogeneous acid catalyst derived from cellulose

Māliņš¹,

Brinks²,

Kampars³

et al. 2016

Applied Catalysis A: General

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Non‐catalytic and heterogeneous acid/base‐catalyzed biodiesel production: Recent and future developments

Tran‐Nguyen

Ong

et al. 2020

Asia-Pacific J Chem Eng

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Biodiesel production technologies, which are non-catalytic and those involving the use of heterogeneous catalyst(s), have gained much interest owing to its high biodiesel and pure glycerol throughput. During the past 15 years, many studies were devoted to explore new catalysts as well as improve non-catalytic technologies with aims to ultimately industrialize such biodiesel production processes. This review elucidates the main process parameters that influences non-catalytic and heterogeneous-catalyzed biodiesel production processes. The common parameters among these technologies include the process temperature, alcohol/oil molar ratio, pressure, catalyst loading, and feedstock quality.Optimization of these process parameters is discussed according to the use of conventional method (one factor at a time [OFAAT]) or the use of statistical methods such as response surface methodology (RSM), artificial neural network (ANN), and Taguchi method. In addition, recent development on noncatalytic process and those involving the use of heterogeneous catalyst(s), such as glycerol-free processes under supercritical conditions of alkyl donors and strategies to improve properties of heterogeneous catalyst, are also reviewed.Finally, insight based on the published techno-economical evaluations is also tackled, and future prospects and research directions on these technologies are also discussed.

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A Review on Biodiesel Production through Heterogeneous Catalysis Route

et al. 2018

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Depletion of oil reserves, increasing prices of petroleum products, and environmental concerns related to air pollution are the main driving forces for utilizing renewable energy resources to replace fossil fuels. Vegetable oils can be used to produce biodiesel. Biodiesel is obtained by transesterification of vegetable oil with alcohol using homogeneous or heterogeneous catalysts. In the industry, biodiesel is produced by heterogeneous catalysts due to high activity and selectivity, better reusability, reduction in processing steps, and wastes. The catalytic activity of catalysts depends on the strength and type of intrinsic basic or/and acid properties. Biodiesel production using heterogenous catalysts depends on the various reaction parameters such as reaction time, temperature, molar ratio of alcohol to oil, catalyst amount, and stirring speed. In this paper, the catalytic transesterification of various feedstocks such as edible oil, non‐edible oil, and waste using heterogeneous catalysts has been reviewed and optimization parameters for maximum biodiesel production have been summarized.

show abstract

New heterogeneous catalyst for the esterification of fatty acid produced by surface aromatization/sulfonation of oilseed cake

Cited by 74 publications

References 56 publications

Esterification of rapeseed oil fatty acids using a carbon-based heterogeneous acid catalyst derived from cellulose

Esterification of rapeseed oil fatty acids using a carbon-based heterogeneous acid catalyst derived from cellulose

Non‐catalytic and heterogeneous acid/base‐catalyzed biodiesel production: Recent and future developments

A Review on Biodiesel Production through Heterogeneous Catalysis Route

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