Synthesis and Application of Novel NiMoK/TS-1 for Selective Conversion of Fatty Acid Methyl Esters/Triglycerides to Olefins

Sancheti, Sonam V.; Yadav, Ganapati D.; Ghosh, Pushpito K.

doi:10.1021/acsomega.9b03993

Cited by 15 publications

(10 citation statements)

References 29 publications

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“…The bimetallic PtSn/SiO 2 catalyst influenced FFA adsorption on the SnO x sites via the acyl group for selective decarbonylation . FAEs can be catalytically decarbonylated into long-chain alkenes, where the alcohol byproduct is recycled to form more starting material …”

Section: Decarbonylation Reactionsmentioning

confidence: 99%

“…Future research in this area should focus on developing robust, selective, inexpensive, recyclable, and eco-friendly catalysts that can handle a mixture of FAAs of diverse structural features (e.g., saturated, unsaturated) without extensive prior purification . FAEs and TGs have also been subjected to the CDC process forming long-chain alkenes . FAAs can be converted to alkenes by the CDN process.…”

Section: Decarboxylation Of Renewable Compoundsmentioning

confidence: 99%

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Greening the Synthesis of Biorenewable Fuels and Chemicals by Stoichiometric Reagentless Organic Transformations

Dutta

2022

Ind. Eng. Chem. Res.

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Reagentless organic synthesis (ROS) can be envisaged as a corollary of the principles of green chemistry, wherein the reactant molecules undergo chemical transformations under the influence of heat, light, sound, or electricity and afford the desired product without necessitating stoichiometric reagents. The predominantly catalytic processes ensure excellent atom economy and minimize waste formation, making the synthetic strategies inherently green. However, since most starting materials stem from exhaustible resources like petroleum, the processes are not entirely sustainable. Reagents and reactants are often used interchangeably, but utmost care should be taken to minimize or eliminate the use of any chemical or material in a chemical transformation that does not appear in a balanced chemical equation. The ideal disposition would be the reagentless synthesis of chemicals using renewable starting materials. In this regard, biomass is a renewable carbon source with the commercial potential to supplant petroleum in producing fuels, chemicals, and polymers. Even though many chemocatalytic biomass value addition processes can be contemplated as ROS, they are somewhat scattered in the literature and have never been deliberated coherently from this perspective. Integration of ROS with biorenewable starting materials can ensure the much-anticipated all-round sustainability of the organic chemical industry. This unique review discusses the merits of synthesizing fuels and chemicals from biomass components following reagentless synthetic steps, critically analyzes the literature data, identifies the research gaps, and proposes future directives.

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Section: Decarbonylation Reactionsmentioning

confidence: 99%

Section: Decarboxylation Of Renewable Compoundsmentioning

confidence: 99%

Greening the Synthesis of Biorenewable Fuels and Chemicals by Stoichiometric Reagentless Organic Transformations

Dutta

2022

Ind. Eng. Chem. Res.

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“…Fatty acid esters are important fine chemical products, which are widely used in food, cosmetics, medicine, energy, chemical industry and other industrial fields 1,2) . Among them, short chain fatty acid esters are important sources of spices and bioplastics 3) , Medium chain fatty acid methyl esters are biodiesel with the advantages of high cetane number, low sulfur content, nontoxicity, and good lubricity 4) .…”

Section: Introductionmentioning

confidence: 99%

Computational Insights into the Esterification of Palmitic Acid with Methanol in Water

Feng

et al. 2022

J. Oleo Sci.

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This work provides quantified explanations for the thermodynamic and kinetic characteristics of esterification in aqueous phase, and how phase transfer catalysts improve water phase esterification of fatty acids in a computational-experimental way. Self-catalyzed reaction mode with or without solvation effects, water participated reaction mode, and catalytic reaction mode (catalyzed by p-dodecyl benzene sulfonic acid, DBSA) are discussed. Our results show that the initial self-catalytic reaction mode undergoes the energy barrier of 100.1 kJ/mol, and rises to 148.9 kJ/mol when water molecule is involved, which hinders the esterification reaction. With the DBSA catalyst, this energy barrier will drop to 97.5 kJ/mol and the water phase esterification is successfully promoted with the yield of 81%. The key kinetic factor of binding energy is discussed as that water molecule has a strong reactant binding competitiveness (with the binding energy of -57.9 kJ/mol, and the value for the non-aqueous phase mode is 3.0 kJ/mol) and DBSA has the binding energy with the value of -45.3 kJ/mol, so it can compete with water to form reactant complexes. This work is a successful practice of a computation-experiment combined scheme, and provides a quantitative basis for the improvement of phase transfer catalysts on water phase esterification reactions. The calculation mode and method of aqueous esterification make it possible to convert bio-based fatty acids into fatty acid esters in fermentation broth.

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“…They obtained 56 % C7 alkanes and 40 % C7 alkenes. Sancheti [18] studied the deoxygenation of methyl palmitate diluted in n-hexane over a Ni5Mo10K/TS-1 (titanosilicate) catalyst at 380°C, obtaining 29% conversion and selectivity of 87% to C15 alkenes and 8% to C15 alkanes.…”

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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Synthesis and Application of Novel NiMoK/TS-1 for Selective Conversion of Fatty Acid Methyl Esters/Triglycerides to Olefins

Cited by 15 publications

References 29 publications

Greening the Synthesis of Biorenewable Fuels and Chemicals by Stoichiometric Reagentless Organic Transformations

Greening the Synthesis of Biorenewable Fuels and Chemicals by Stoichiometric Reagentless Organic Transformations

Computational Insights into the Esterification of Palmitic Acid with Methanol in Water

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

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