Effects of oxygenates and moisture on adsorptive desulfurization of liquid fuels with Cu(I)Y zeolite

2006 ◽  
Vol 116 (4) ◽  
pp. 512-518 ◽  
Author(s):  
Yingwei Li ◽  
Frances H. Yang ◽  
Gongshin Qi ◽  
Ralph T. Yang
Keyword(s):  
Liquid Fuels ◽  
Y Zeolite ◽  
Adsorptive Desulfurization

Use of Retorted Shale as Sulfur Adsorbent

2018 ◽  
Vol 930 ◽  
pp. 562-567
Author(s):  
Rodolfo Luiz Bezerra de Araújo Medeiros ◽  
Maria de Fátima Dantas e Silva ◽  
Rodrigo César Santiago ◽  
Gilvan Pereira de Figueredo ◽  
Heloísa Pimenta de Macedo ◽  
...  
Keyword(s):  
Acid Leaching ◽  
Gas Production ◽  
Liquid Fuels ◽  
Test Results ◽  
X Ray Diffraction ◽  
Adsorptive Desulfurization ◽  
Wet Impregnation ◽  
X Ray ◽  
Chemically Modified ◽  
Alternative Material

The aim of this work is to use a residue from shale gas production, known as retorted shale (RS), as an alternative material for processes of sulfur adsorptive desulfurization in liquid fuels such as gasoline or diesel. Therefore, retorted shale samples were chemically modified. Two methods were applied: acid leaching and impregnation. The first method (RS-HCl) was an acid treatment with HCl solution (3M) in proportion of 1.5: 10. The second method (RS-Fe) was a wet impregnation of 20%wt. of Fe followed by calcination at 700°C for 2 h. The adsorbents were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The adsorption tests were performed using a solution of n-heptane and thiophene to simulate a fuel with an initial concentration of 500 ppm of sulfur. The results showed that both methods significantly altered the structure of the retorted shale, mainly the amount of Fe2O3. The adsorption test results indicated that the adsorbents prepared can remove up to 90% of the sulfur present.

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

2019 ◽  
Vol 4 (8) ◽  
pp. 1357-1386 ◽  
Author(s):  
Kevin X. Lee ◽  
Julia A. Valla
Keyword(s):  
Liquid Hydrocarbons ◽  
Y Zeolite ◽  
Adsorptive Desulfurization ◽  
Comprehensive Review ◽  
Transportation Fuels ◽  
Efficient Process

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

Adsorptive desulfurization on a heteroatoms Y zeolite prepared by secondary synthesis

2010 ◽  
Vol 53 (1) ◽  
pp. 281-286 ◽  
Author(s):  
Ke Tang ◽  
Xin Hong ◽  
YongHua Zhang ◽  
LiJuan Song ◽  
ZhaoLin Sun
Keyword(s):  
Y Zeolite ◽  
Adsorptive Desulfurization

A Mathematical Modeling and Experimental Study on Adsorptive Desulfurization of Model Gasoline Using Synthesized Ni–Y and Ce–Y Zeolites

2014 ◽  
Vol 9 (2) ◽  
pp. 155-164
Author(s):  
Maryam Montazerolghaem ◽  
Amir Rahimi ◽  
Fakhry Seyedeyn-Azad
Keyword(s):  
Adsorption Process ◽  
Model Parameters ◽  
Ambient Conditions ◽  
Y Zeolite ◽  
Adsorptive Desulfurization ◽  
Exchange Method ◽  
Y Zeolites ◽  
Batch System ◽  
Model Predictions ◽  
Good Agreement

Abstract In this study, Ni–Y and Ce–Y zeolites are prepared using synthesized Na–Y zeolite through solid-state ion-exchange method. The adsorptive desulfurization of a model gasoline containing 194, 116 and 72 ppmw sulfur is evaluated in a batch system under ambient conditions. A dynamic model is established in order to investigate the performance of the adsorption process. The model predictions are compared with the obtained experimental results for thiophene adsorption on Ni–Y and Ce–Y zeolites from model solution containing different concentrations of thiophene, and a good agreement is observed. The model parameters: diffusivity and mass transfer coefficient are estimated by comparing the model predictions and experimental data.

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