Zeolites for adsorptive desulfurization from fuels: A review

Dehghan, Roghaye; Anbia, Mansoor

doi:10.1016/j.fuproc.2017.06.015

Cited by 240 publications

(121 citation statements)

References 67 publications

Supporting

Mentioning

114

Contrasting

Unclassified

Order By: Relevance

“…Ecat-R-SC could be reused again in FCC process. However, when the rare earth, nickel and vanadium elements are in critical concentration and ecat completely lost its catalytic activity the chosen solution for electrokinetic remediation is composed by sulfuric acid (ecat-R-SA) [12]. All details of the electrokinetic treatment are described in recent reports by the group of applied electrochemistry (GEA) that provided the material for this study [3,9].…”

Section: Figmentioning

confidence: 99%

See 1 more Smart Citation

Regeneration study of ecat-R as adsorbent for denitrogenation and desulfurization of diesel fuels

Valadares

Valt

Vieira

et al. 2020

CI&CEQ

View full text Add to dashboard Cite

The purpose of this paper is to present the third stage of regeneration for ecat: a deactivated or equilibrium catalysts which are waste from fluidized catalytic cracking (FCC) units. This stage is going to compose a complete circular economy (CE) model and increases the life cycle catalyst. The third stage of regeneration, after the adsorption process for sulfur and nitrogen compounds from real diesel, was assessment using as solvents: acetone (propanone), ethanol, benzene and toluene. For sulphur and nitrogen compounds, ethanol achieved the best performance. The variations of physical and chemical properties of regenerated ecat's in the cycles of adsorption and desorption were evaluated using x-ray diffraction, x-ray fluorescence, nitrogen adsorption-desorption, thermogravimetric and differential thermal analysis, scanning electron microscopy and Fourier-transform infrared spectroscopy. The recovery rate over four cycles is superior for sulfur compounds. After all cycles, ecat-R-SA exhibited 5.09% reduction in the recovery for sulphur and 24.58% reduction in the recovery for nitrogen. The nitrogen adsorption-desorption analysis suggests the adsorption of compounds by ecat-R may be more correlated with the adsorption sites than with specific area. Overall, the results of this work are promising and allows ecat to integrate a complete CE model.

show abstract

Section: Figmentioning

confidence: 99%

“…There are two common methods to regenerate adsorbents after adsorption: thermal regeneration (destructive regeneration), which is carried out by gases (air, helium, N2 or vacuum) at high temperatures and regeneration with solvents (nondestructive regeneration) [12].…”

Section: Figmentioning

confidence: 99%

Regeneration study of ecat-R as adsorbent for denitrogenation and desulfurization of diesel fuels

Valadares

Valt

Vieira

et al. 2020

CI&CEQ

View full text Add to dashboard Cite

show abstract

“…MOFs were investigated for desulphurization due to their tunable pore size, high porosity, high surface area, and easy regeneration. MOFs are a crystalline porous material made by binding the metal ions with organic ligands [5].…”

Section: Introductionmentioning

confidence: 99%

A kinetic study of HKUST-1 for desulfurization applications

Alyassiry

Al-Rubaye

2021

THERM SCI

View full text Add to dashboard Cite

In this study, HKUST-1 prepared under solvothermal conditions and tested in desulphurization of model gasoline. The prepared HKUST-1 samples were characterized using surface area and pore volume analysis ( BET), powder X-ray diffraction( XRD), and Fourier transforms infrared spectroscopy (FTIR). The prepared HKUST-1 was used for desulphurization of model gasoline (thiophene with iso-octane), and the influence of the thiophene concentration, HKUST-1 dose, temperature, and contact time. The experimental results revealed that the sulfur content in model fuel was reduced from 1500 to 148.2 ppm (90.12% removal efficiency) for 4 hours contact time at 30 o C. In addition, an isotherm adsorption and kinetics study were performed for a batch process to understand the system equilibrium( i.e., the best fitting Langmuir isotherm or Freundlich isotherm). The kinetics study proved that the contained sulfur removal was best fitted by Pseudo-Second-Order Kinetics. Regeneration results show that the HKUST-1 has a reversible nature as an adsorbent. Therefore, HKUST-1 might be used as a promising adsorbent for removing thiophene compounds from gasoline.

show abstract

“…The direct emission of SOx from the combustion of sulfur-containing compounds in fuel oil to the atmosphere can cause serious environmental pollution, and the deep removal of sulfides from fuel oil has become an urgent topic worldwide [1]. On January 1, 2018, the whole country will implement the fifth phase of national vehicle emission standards.…”

Section: Introductionmentioning

confidence: 99%

“…This is because traditional hydrodesulfurization technology is limited by the thermodynamic equilibrium and needs to be carried out under high temperature and high pressure operating conditions, resulting in high operating costs, destroying the main components in gasoline, and reducing the octane number of gasoline. Therefore, many researchers have devoted themselves to the research of non-hydrogenation ultra-deep desulfurization technology for gasoline, and the adsorption desulfurization reaction conditions are mild, high selectivity, simple operation, high desulfurization rate, and are the most potential ultra-deep desulfurization technology [1]. It has attracted wide attention from all countries in the world.…”

Section: Introductionmentioning

confidence: 99%

Effect of Metal Ion Exchange Modification of Zeolite on Sulfide Removal Performance

Zhu¹,

Huang²,

Wang³

et al. 2018

Proceedings of the 2018 3rd International Conference on Automation, Mechanical Control and Computational Engineering (AMCCE 201

View full text Add to dashboard Cite

Abstract:Copper-modified 13X Zeolite was prepared by impregnation of metal nitrate solution with ion exchange and combined with calcination, and its application in desulfurization of fuel oil was investigated. Different anions have a great influence on the performance of modified adsorbents. Chloride ions are better than nitrate and better than bromide ions. After characterization, the 13X zeolite modified by different anion copper salts have little influence on the crystal structure of 13X molecules. Due to the influence of the solubility on the impregnation or the adsorption capacity of the extra nuclear electronic arrangement on the sulfide, the CuCl is significantly better than other ions. Desulfurization performance after calcination is better than that before calcination, and calcination does not oxidize cuprous ions. After optimization, the prepared CuCl-impregnated 13X zeolite have the best adsorption properties and good reusability.

show abstract

Zeolites for adsorptive desulfurization from fuels: A review

Cited by 240 publications

References 67 publications

Regeneration study of ecat-R as adsorbent for denitrogenation and desulfurization of diesel fuels

Regeneration study of ecat-R as adsorbent for denitrogenation and desulfurization of diesel fuels

A kinetic study of HKUST-1 for desulfurization applications

Effect of Metal Ion Exchange Modification of Zeolite on Sulfide Removal Performance

Contact Info

Product

Resources

About