Efficient oxidative desulfurization of diesel fuel using amide-based ionic liquids

Jiang, Bin; Chen, Hou; Zhang, Rongya; Sun, Yongli; Huang, Yong

doi:10.1016/j.cej.2015.07.070

Cited by 169 publications

(58 citation statements)

References 43 publications

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“…Furthermore, haze harms to our health, causing respiratory illness, cardiovascular disease and contributes to the formation of sulfates particulates and so on [1][2][3] . Thus, many governments all over the world have promulgated stringent regulations to limit sulfur content in transportation fuels [4][5] .…”

Section: Introductionmentioning

confidence: 99%

Green Carboxylic Acid-Based Deep Eutectic Solvents as Solvents for Extractive Desulfurization

et al. 2016

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The extractive desulfurization of thiophene (TS), dibenzothiophene (DBT), and benzothiophene (BT) in model oil was carried out using carboxylic acid-based deep eutectic solvents (DES). It was found that DES formed by formic acid as hydrogen bond donor and Tetrabutylammonium bromide (TBAB) as hydrogen bond acceptor could efficiently separate organosulfur from oils. The influence parameters in this process were discussed, such as extraction temperature, reaction time, mass ratio of DES to oil; multistage extraction effect; recycle times and regeneration of DES. The results showed that the desulfurization selectivity of TBAB/HCOOH followed the order TS < BT ≈DBT. Under the Optimized conditions, the sulfur removal of BT, DBT and TS were 81.75%, 80.47% and 72% in a single stage, respectively, and after three cycles, it will rise to 98.32%, 98.24% and 97.6%. The sulfur content in fuels can be achieved to less than 8.4, 8.8 and 12 ppm for BT, DBT and TS. In addition, by mechanism discussion, it was proved that hydrogen bonding between the sulfide and DES was the main driving force of the extraction desulfurization process.

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Section: Introductionmentioning

confidence: 99%

Green Carboxylic Acid-Based Deep Eutectic Solvents as Solvents for Extractive Desulfurization

et al. 2016

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“…[44] As indicated in Table 1, ILs were applied for direct removal of OSCs [44][45][46] or used to removeo xidized products after an initialo xidation step. [47][48][49] Them ain components of ionic liquids that were commonly used to removeO SCs were imidazolium and pyridinium as organic cations,w hereas BF À , PF 6 À ,a nd EtSO 4 À were the anionic parts. [44,58,59] Moreover, an umber of comprehensive reviews on the use of ionic liquids are available.…”

Section: Ionic Liquids For the Extraction Of Organosulfur Compounds: mentioning

confidence: 99%

“…[48] Again,t he most interesting point of ILs is that there is no need for an extra extraction step owing to the extractive efficiency of the ionic liquids for all possible byproducts.J iang and co-workers have applied H 2 O 2 /caprolactamium hydrogen sulfate-trifluoroacetic acid (as an IL) to remove 99 %o fD FBT andotherderivatives from diesel containing 660 ppmw. [49] Thee xtraction process seemed to be slow,a st wo successive cycles were needed to end up with the ideal 100 %r emoval efficiency. [49] 4.4.…”

Section: Ionic Liquids For the Extraction Of Organosulfur Compounds: mentioning

confidence: 99%

Conventional and Upcoming Sulfur‐Cleaning Technologies for Petroleum Fuel: A Review

et al. 2016

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Environmental regulations on the quality of liquid fuels continue to create more requirements to produce a near‐to‐zero sulfur content. The hydrodesulfurization process has a high running cost and suffers from incomplete removal of sulfur compounds, particularly alkylated dibenzothiophene. Recently, oxidative and adsorption desulfurization procedures showed high potential to take part in commercial desulfurization. The advantages and disadvantage of the newly proposed procedures are outlined and reviewed. Undoubtedly, adsorptive‐based methods have achieved many advances in this area. Particularly, surface imprinted polymers and metal–organic frameworks have manifested an excellent tendency to remove bulky sulfur compounds with minimum experimental effort. This review presents information about the workability, efficiency, and mechanisms of the current desulfurization methodologies for diesel as a common transportation fuel. More attention is given to adsorptive desulfurization as a promising technology.

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“…Denitrogenation can be achieved in 40 min at 75 °C. On the basis of increasing environmental impact of sulfur-containing chemicals in fuel oils, the development of efficient and environmentally friendly deep desulfurization processes has been flagged as an urgent global challenge [47,48]. In recent years, POM-LDH composites have been widely used in green chemistry industry [40,46], and currently, catalytic oxidation desulfurization has become an important task for environmental pollution control.…”

Section: Oxidation Catalystmentioning

confidence: 99%

Polyoxometalate (POM)-Layered Double Hydroxides (LDH) Composite Materials: Design and Catalytic Applications

Miras

Song

2017

Catalysts

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Layered double hydroxides (LDHs) are an important large class of two-dimensional (2D) anionic lamellar materials that possess flexible modular structure, facile exchangeability of inter-lamellar guest anions and uniform distribution of metal cations in the layer. Owing to the modular accessible gallery and unique inter-lamellar chemical environment, polyoxometalates (POMs) intercalated with LDHs has shown a vast array of physical properties with applications in environment, energy, catalysis, etc. Here we describe how polyoxometalate clusters can be used as building components for the construction of systems with important catalytic properties. This review article mainly focuses on the discussion of new synthetic approaches developed recently that allow the incorporation of the element of design in the construction of a fundamentally new class of materials with pre-defined functionalities in catalytic applications. Introducing the element of design and taking control over the finally observed functionality we demonstrate the unique opportunity for engineering materials with modular properties for specific catalytic applications.Keywords: layered double hydroxides; polyoxometalates; intercalated materials Layered Double Hydroxides (LDHs)-Intro BackgroundLayered double hydroxides (LDHs) or hydrotalcite-like compounds are a large family of two-dimensional (2D) anionic clay materials made up of positively charged brucite-like layers with an interlayer region containing charge compensating anions and solvation molecules, which can be represented by the general formula -4]. As shown in Figure 1 and generally in the range of 0.20-0.33, which occupy the space between the layers compensating for the positive charge and inducing stability in the overall structure [5,6]. The M II /M III -based edge shared octahedra are used to construct 2D infinite sheets, whereas hydroxyl groups are organized on the vertices of the octahedra with the hydrogen atoms pointing toward the interlayer region, as a consequence forming a complex network of hydrogen bonds with the interlayer anions and water molecules [1,[7][8][9][10]. LDH-based materials are very attractive systems due to their robust structure,

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Efficient oxidative desulfurization of diesel fuel using amide-based ionic liquids

Cited by 169 publications

References 43 publications

Green Carboxylic Acid-Based Deep Eutectic Solvents as Solvents for Extractive Desulfurization

Green Carboxylic Acid-Based Deep Eutectic Solvents as Solvents for Extractive Desulfurization

Conventional and Upcoming Sulfur‐Cleaning Technologies for Petroleum Fuel: A Review

Polyoxometalate (POM)-Layered Double Hydroxides (LDH) Composite Materials: Design and Catalytic Applications

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