Simultaneous sulfur and nitrogen removal from fuel combining activated porous MIL-100(Fe) catalyst and sustainable solvents

Silva, Dinis F.; Faria, Rui G.; Santos-Vieira, Isabel; Cunha-Silva, Luı́s; Granadeiro, Carlos M.; Balula, Salete S.

doi:10.1016/j.cattod.2023.114250

Cited by 5 publications

(5 citation statements)

References 59 publications

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“…Simultaneous processes revealed that the N-compounds were more easily removed from the fuel phase to the ionic liquid [BMIM]PF 6 phase, and consequently, these were oxidized faster than the S-compounds. Identical simultaneous S/N removal was achieved using H 3 PMo 12 @MOF-808 [133] and H 3 PMo 12 @MIL-100 (Fe) [134], achieving complete removal of S and N from multicomponent fuels after a few minutes. The high efficiency of these catalysts was conciliated with an effective extraction ionic liquid [BMIM]PF 6 solvent that received oxidized and non-oxidized S-and N-compounds.…”

Section: Catalytic Oxidation Processmentioning

confidence: 95%

“…The high efficiency of these catalysts was conciliated with an effective extraction ionic liquid [BMIM]PF 6 solvent that received oxidized and non-oxidized S-and N-compounds. Between both heterogeneous catalytic systems, the H 3 PMo 12 @MIL-100 (Fe) was shown to allow a higher number of recycling cycles without the loss of efficiency [133,134].…”

Section: Catalytic Oxidation Processmentioning

confidence: 99%

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Advanced Technologies Conciliating Desulfurization and Denitrogenation to Prepare Clean Fuels

Faria,

Silva,

Mirante

et al. 2024

Catalysts

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The removal of sulfur- and nitrogen-containing compounds present in fuels is and will be crucial to accomplish actual strict regulations to avoid environmental and humanity health adversities. The conventional hydrodesulfurization and hydrodenitrogenation processes conducted by refineries are limited due to severe operating conditions, and even more importantly, they are inefficient for simultaneously removing nitrogen- and sulfur-containing compounds in fuels. On the other hand, non-hydrogen technologies are beneficial in terms of mild operating conditions, and during the last two decades, some successful works have shown that these can be highly effective at efficiently removing both sulfur- and nitrogen-containing compounds from liquid fuels. For more than four decades, extensive research (thousands of publications since the 1980s) has been dedicated to developing remote desulfurization technologies without taking into consideration the presence of a complex fuel matrix, or even taking into account the presence of other harmful pollutant elements, such as nitrogen. Even more recently, several effective non-hydrogen denitrogenation processes have been reported without considering the presence of sulfur compounds. This review paper is a reflection on the limited work that has been successfully performed to simultaneously remove sulfur- and nitrogen-containing compounds from fuels. An evaluation of different methodologies (adsorption, extraction, oxidative (photo)catalysis, ultrasound-assisted oxidation) is presented here. Furthermore, this review intends to define new future strategies that will allow the design of more suitable and economical technologies, effectively conciliating desulfurization and denitrogenation processes to produce more sustainable fuels.

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Section: Catalytic Oxidation Processmentioning

confidence: 95%

Section: Catalytic Oxidation Processmentioning

confidence: 99%

Advanced Technologies Conciliating Desulfurization and Denitrogenation to Prepare Clean Fuels

Faria,

Silva,

Mirante

et al. 2024

Catalysts

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“…For this reason, it is important and fundamental to evaluate unprecedented materials as sustainable heterogeneous catalysts [28,29]. Following the research interest of our research group in the development of MOF-based materials towards different sustainable catalytic processes [30][31][32][33][34][35][36], MOF-808 was prepared by a greener procedure, properly characterized, and evaluated as a catalyst in two ring-opening catalytic reactions, one of styrene oxide and the other of cyclohexene oxide (another Zr-based porous Most of the catalysts reported for these types of reactions are homogeneous and thus, are practically impossible to reuse, and they are often expensive, inefficient, toxic, or unstable. For this reason, it is important and fundamental to evaluate unprecedented materials as sustainable heterogeneous catalysts [28,29].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, it is important and fundamental to evaluate unprecedented materials as sustainable heterogeneous catalysts [28,29]. Following the research interest of our research group in the development of MOF-based materials towards different sustainable catalytic processes [30][31][32][33][34][35][36], MOF-808 was prepared by a greener procedure, properly characterized, and evaluated as a catalyst in two ring-opening catalytic reactions, one of styrene oxide and the other of cyclohexene oxide (another Zr-based porous coordination polymer, UiO-66-NH 2 , was also prepared and applied for comparative proposes; Figure 2). MOF-808 proved to be an efficient heterogeneous catalyst for this type of reaction.…”

Section: Introductionmentioning

confidence: 99%

Porous Coordination Polymer MOF-808 as an Effective Catalyst to Enhance Sustainable Chemical Processes

Ferreira,

Santos-Vieira,

Gomes

et al. 2024

Polymers

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The improvement of sustainable chemical processes plays a pivotal role in safe environmental and societal development, for example, by reducing the use of hazardous substances, preventing chemical waste, and improving the efficiency of chemical reactions to obtain added-value compounds. In this context, the porous coordination polymer MOF-808 (MOF, metal–organic framework) was prepared by a straightforward method in water, at room temperature, and was unequivocally characterized by powder X-ray diffraction, vibrational spectroscopy, thermogravimetric analysis, and scanning electron microscopy. MOF-808 material was applied for the first time as catalysts in ring-opening aminolysis reactions of epoxides. It demonstrated high activity and selectivity for reactions of styrene oxide and cyclohexene oxide with aniline, using a very low amount of an eco-sustainable solvent (0.5 mL of EtOH), at 70 °C. Moreover, MOF-808 demonstrated high stability in the catalytic reaction conditions applied, and a notable reuse capacity of up to 20 consecutive reaction cycles, without significant variation in its catalytic performance. In fact, this Zr-based porous coordination polymer prepared by environment-friendly conditions proved to be a novel efficient heterogeneous catalyst, promoting the ring-opening reaction of epoxides under more sustainable conditions, and using a very low amount of catalyst.

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“…The latter compounds have a strong polarity and can be easily removed by extraction, adsorption, and precipitation from the fuel oil [6,7]. Our research group has been combining ODS with extractive processes (ECODS), and very good results have been achieved for model and real diesel fuels [16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Binuclear Dioxomolybdenum(VI) Complex Based on Bis(2-pyridinecarboxamide) Ligand as Effective Catalyst for Fuel Desulfurization

Mirante,

Dias,

Silva

et al. 2024

Catalysts

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A binuclear dioxomolybdenum catalyst [(MoO2Cl2)2(L)] (1) (with L (1S,2S)-N,N′-bis(2-pyridinecarboxamide)-1,2-cyclohexane) was prepared and used as catalyst for the desulfurization of a multicomponent model fuel containing the most refractory sulfur compounds in real fuels. This complex was shown to have a high efficiency to oxidize the aromatic benzothiophene derivative compounds present in fuels, mainly using a biphasic 1:1 model fuel/MeOH system. This process conciliates catalytic oxidative and extractive desulfurization, resulting in the oxidation of the sulfur compounds in the polar organic solvent. The oxidative catalytic performance of (1) was shown to be influenced by the presence of water in the system. Using 50% aq. H2O2, it was possible to reuse the catalyst and the extraction solvent, MeOH, during ten consecutive cycles without loss of desulfurization efficiency.

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Simultaneous sulfur and nitrogen removal from fuel combining activated porous MIL-100(Fe) catalyst and sustainable solvents

Cited by 5 publications

References 59 publications

Advanced Technologies Conciliating Desulfurization and Denitrogenation to Prepare Clean Fuels

Advanced Technologies Conciliating Desulfurization and Denitrogenation to Prepare Clean Fuels

Porous Coordination Polymer MOF-808 as an Effective Catalyst to Enhance Sustainable Chemical Processes

Binuclear Dioxomolybdenum(VI) Complex Based on Bis(2-pyridinecarboxamide) Ligand as Effective Catalyst for Fuel Desulfurization

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