Adsorptive desulfurization of liquid hydrocarbons using zeolite-based sorbents: a comprehensive review

Lee, Kevin X.; Valla, Julia A.

doi:10.1039/c9re00036d

Cited by 89 publications

(65 citation statements)

References 130 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several methods, such as adsorptive desulfurization, extractive desulfurization, bio‐desulfurization have been developed in the last years . The most promising methodology to refine the fuel obtained after HDS is oxidative desulfurization (ODS), which, thanks to its mild operative conditions can be implemented for the processing of a large variety of fuels.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Organic Framework‐Based Catalysts for Oxidative Desulfurization

et al. 2020

View full text Add to dashboard Cite

Oxidative desulfurization (ODS) is emerging as the most promising methodology to remove refractive naturally occurring sulfides from fossil fuels. Metal‐organic frameworks (MOFs), a fascinating class of materials, are suitable as catalysts for this process due to the theoretical infinite number of combinations of polynuclear metal clusters and organic linkers. A rational fine‐tuning of the material structure, porosity and chemical functionality have given rise to a considerable number of MOF‐based catalytic active materials. Furthermore, MOFs can act as host, with programmable cavity sizes to accommodate catalytic species, forming novel robust catalytic MOF composite materials. Herein an account of this growing field of heterogeneous catalysis is reported and discussed, aiming to point out future outlooks and perspectives.

show abstract

Section: Introductionmentioning

confidence: 99%

Metal‐Organic Framework‐Based Catalysts for Oxidative Desulfurization

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Ultra‐deep desulfurization of gasoline and diesel has become a matter of growing urgency because of the ever‐tightening environmental regulations in worldwide . The Environmental Protection Agency (EPA) regulations regarding air quality policy in the United States require that the sulfur content in federal gasoline can′t exceed 10 mg⋅kg −1 by January 1 st , 2017, while ultra‐low sulfur diesel (ULSD) must contain less than 15 mg⋅kg −1 of sulfur .…”

Section: Introductionmentioning

confidence: 99%

Effect of Content of Cerium Ion on Brönsted‐Acid‐Catalyzed Reaction of Thiophene over CeY Zeolite Studied by In Situ FTIR Spectroscopy

Qin

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

With NaY zeolite as the raw material, CeY zeolites with different content of Ce ions were prepared by liquid phase ion exchange (LPIE) method. Their chemical compositions were measured by X-ray fluorescence spectrometry (XRF) and in situ Fourier transform infrared spectroscopy (FTIR) techniques. Temperatureprogrammed desorption of ammonia (NH 3 -TPD) and FTIR spectra of pyridine (Py-FTIR) techniques were used to characterize acidity of CeY zeolites. With thiophene (TP, C 4 H 4 S) as probe molecule, adsorption and reaction of TP over CeY zeolites were researched by using in situ FTIR spectroscopy. Finally, it can be found that activity of Brönsted(B)-acid-catalyzed reaction of TP firstly increases and then has little change with the increase of concentration of Ce(NO 3 ) 3 solution (c), while increases with the increase of the exchange times by a combination of adsorption and reaction of TP over CeY zeolite with acidity of CeY zeolite and with location of Ce ion in CeY zeolite. Especially, the sulfurmetal (SÀ M) interaction between TP and Ce ion located in the supercage exhibits more influence than B-acid-catalyzed reaction of TP on adsorption desulfurization of CeY zeolite.[a] Z.

show abstract

“…Irrespective of the loading value, the titanium anatase phase largely prevailed in the samples, the active species being well dispersed on SBA-15 as a consequence of the strong electrostatic adsorption of the TiO 2 precursor on SBA-15 with a low point of zero charge [76]. The efficacy of novel TiO 2 /SBA-15 was evaluated in the removal of DBT, MDBT and DMDBT as selected substrates, by comparing the simple adsorptive desulfurization capacity (ADS) [77] with the properties of the CADS approach ( Figure 2). In this latter case, cumene hydroperoxide was used as the primary oxidant in acetonitrile at 35 • C. As a general trend, these CADS were two orders of magnitude more efficient than simple ADS, showing a desulfurization capacity higher than the previously reported UV-photocatalytic CDAS-TiO 2 /SiO 2 procedure [78].…”

Section: Titanium Oxidesmentioning

confidence: 99%

SBA-15 Anchored Metal Containing Catalysts in the Oxidative Desulfurization Process

2019

View full text Add to dashboard Cite

Recalcitrant sulfur compounds are common impurities in crude oil. During combustion they produce SOx derivatives that are able to affect the atmospheric ozone layer, increasing the formation of acid rains, and reducing the life of the engine due to corrosion. In the last twenty years, many efforts have been devoted to develop conventional hydrodesulfurization (HDS) procedures, as well as alternative methods, such as selective adsorption, bio-desulfurization, oxidative desulfurization (ODS) under extractive conditions (ECODS), and others. Among them, the oxidative procedures have been usually accomplished by the use of toxic stoichiometric oxidants, namely potassium permanganate, sodium bromate and carboxylic and sulfonic peracids. As an alternative, increasing interest is devoted to selective and economical procedures based upon catalytic methods. Heterogeneous catalysis is of relevance in industrial ODS processes, since it reduces the leaching of active species and favors the recovery and reuse of the catalyst for successive transformations. The heterogenization of different types of high-valent metal transition-based organometallic complexes, able to promote the activation of stoichiometric benign oxidants like peroxides, can be achieved using various solid supports. Many successful cases have been frequently associated with the use of mesoporous silicas that have the advantage of easy surface modification by reaction with organosilanes, facilitating the immobilization of homogeneous catalysts. In this manuscript the application of SBA-15 as efficient support for different active metal species, able to promote the catalytic ODS of either model or real fuels is reviewed, highlighting its beneficial properties such as high surface area, narrow pore size distribution and tunable pore diameter dimensions. Related to this topic, the most relevant advances recently published, will be discussed and critically described.

show abstract

Adsorptive desulfurization of liquid hydrocarbons using zeolite-based sorbents: a comprehensive review

Abstract: Adsorptive desulfurization using modified Y zeolite is an efficient process for the removal of sulfur from transportation fuels.

Cited by 89 publications

References 130 publications

Metal‐Organic Framework‐Based Catalysts for Oxidative Desulfurization

Metal‐Organic Framework‐Based Catalysts for Oxidative Desulfurization

Effect of Content of Cerium Ion on Brönsted‐Acid‐Catalyzed Reaction of Thiophene over CeY Zeolite Studied by In Situ FTIR Spectroscopy

SBA-15 Anchored Metal Containing Catalysts in the Oxidative Desulfurization Process

Contact Info

Product

Resources

About