Study of diesel fuel desulfurization by adsorption

Mužic, Marko; Sertić-Bionda, Katica; Gomzi, Zoran; Podolski, Štefica; Telen, Sanda

doi:10.1016/j.cherd.2009.08.016

Cited by 88 publications

(68 citation statements)

References 29 publications

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“…[13] These authors have pointed out that the adsorption process of S-compounds could be treated as a single-solute adsorption process, which facilitates the application of common isotherms and kinetic models. [13] Activated carbon prepared from the pits of dates and activated by ZnCl 2 was proved to be an effective material for removing OSCs from diesel. [14] The process of removing a mixture of cyclic OSCs was evaluated using commercially ACs, acidactivated carbon, and Ni-modified ACs.…”

Section: Introductionmentioning

confidence: 99%

“…The equilibrium and kinetic data were modeled by using various equations assuming a "single-component-adsorption" system and this convention is accepted. [13] Modeling equilibrium and kinetic adsorption data For a simplified, practical approach, the removal of OSCs is treated as a "single-component" adsorption which facilitates the modeling of the data by using common isotherms or kinetic models. [13] Both the Langmuir and Freundlich equations were applied for modeling the OSC adsorption data.…”

Section: Introductionmentioning

confidence: 99%

“…[13] Modeling equilibrium and kinetic adsorption data For a simplified, practical approach, the removal of OSCs is treated as a "single-component" adsorption which facilitates the modeling of the data by using common isotherms or kinetic models. [13] Both the Langmuir and Freundlich equations were applied for modeling the OSC adsorption data. The Langmuir equation is represented as follows: [21] ) is a constant that relates to the heat of adsorption.…”

Section: Introductionmentioning

confidence: 99%

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Manganese‐Loaded Activated Carbon for the Removal of Organosulfur Compounds from High‐Sulfur Diesel Fuels

Al-Ghouti

Al‐Degs

2014

Energy Tech

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The adsorptive capacity of activated carbon (AC) is significantly enhanced toward weakly interacting organosulfur compounds (OSC) from sulfur‐rich diesel fuel. Sulfur compounds are selectively removed from diesel after surface modification by manganese dioxide (MnO2). A selective surface for OSC removal was created by loading MnO2 on the surface; π‐complexation between the partially filled d‐orbitals of Mn4+ and the S atom is the controlling mechanism for OSC removal. Principal component analysis (PCA) of adsorption data indicated the significance of the Mn–AC mass and the temperature as experimental parameters according to the following correlation: OSC adsorption (mg Sg−1)=3.94 (mass)−0.06 (part. diam.)−3.28 (temp)+0.02 (conc.). The kinetics of OSC adsorption confirmed that OSC removal by Mn–AC is a fast process in which 66 % of the surface is filled in 30 min. Kinetic data were best fitted by pseudo‐first‐ and second‐order models compared to diffusion‐based models. Surface and pore diffusion has only a minor role in the process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Manganese‐Loaded Activated Carbon for the Removal of Organosulfur Compounds from High‐Sulfur Diesel Fuels

Al-Ghouti

Al‐Degs

2014

Energy Tech

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“…However, the literature reports the influence of the impregnation of these metal oxides on the acidity of silica-alumina samples. The presence of Brønsted acid sites in molybdenum oxide impregnated on silica-alumina has been observed elsewhere (Al-Yassir et al 2005;Al-Yassir and Mao 2006;Rajagopal et al 1995;Ramani et al 1999) and can be related to the interactions between molybdate anionic species and different types of hydroxyl groups on the support surface. Al-Yassir et al (2005) also reported that the addition of MoO 3 resulted in the increase in the amount of Brønsted acid sites.…”

Section: Influence Of Metal Oxides Impregnated On Silica-alumina In Rmentioning

confidence: 92%

“…The use of adsorbents to remove sulphur and/or nitrogen compounds from liquid hydrocarbons is an interesting approach for the production of ultra-clean fuels, which not only answers the increasingly strict environmental legislation, but also enables the production of hydrocarbons for use in fuel cells (Arcibar-Orozco and Rangel-Mendez 2013;Kim et al 2006;Laredo et al 2013). One of its advantages is the possibility to be carried out under mild operational conditions such as temperature and pressure, which allows for decreased energy consumption (Muzic et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Influence of Metal Oxides Impregnated on Silica—Alumina in the Removal of Sulphur and Nitrogen Compounds from a Hydrotreated Diesel Fuel Stream

Silveira

Veloso

Costa

et al. 2015

Adsorption Science & Technology

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ABSTRACT:The environmental legislation of many countries imposes severe restrictions on the emissions of gaseous pollutants, including NO x and SO x . Efficient alternatives for the removal of nitrogen and sulphur contaminants are required to obtain increasingly cleaner fuels. In this regard, adsorption is economically promising, because it requires less energy than the traditional hydrotreating processes due to mild conditions of temperature and pressure required. The objective of this study was to evaluate the influence of nickel, cerium, molybdenum and cobalt oxides impregnated on silica-alumina in removing nitrogen and sulphur compounds from a hydrotreated diesel. The incorporation of metal oxides increased the density of acid sites and promoted the removal of nitrogen and sulphur compounds, especially the one impregnated with molybdenum oxide. The influence of molybdenum oxide loading was also studied. It was observed that this synthesis parameter affected acid sites density and contaminant removal.

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Desulfurization performance of a large‐scale marine diesel engine's scrubber with packing scrubbing: Validation of design parameters based on ASPEN PLUS simulations

Zhao

Kuang

et al. 2021

Asia-Pacific J Chem Eng

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In the adaptability of a proposed cascade‐scrubbing technology used for ocean ships, ASPEN PLUS desulfurization simulations for a packing scrubber of a 10 000‐kW large‐scale marine diesel engine were performed to uncover effects of the scrubber's configurational parameters (i.e., scrubber diameter, spherical packing diameter, and packing thickness) and meanwhile confirm the selected parameters' availability. Desulfurization was evaluated not only under the once‐through open‐loop model with varying above scrubber's configurational parameters plus operational seawater temperature and scrubbing section's inlet gas temperature but also under the seawater/lye cascade‐scrubbing model for confirming its availability and superiority in saving both the seawater and lye consumption. Desulfurization exhibits increase, decrease, and slight increase trends with the packing thickness, packing diameter, and scrubber diameter, respectively. However, the packing‐layer pressure drop increases with the packing thickness and decreases initially but then varies little with the left two parameters. Any increase in these temperatures weakens desulfurization. A comprehensive consideration of multiple factors suggests that the selected packing diameter of 50 mm, total packing thickness of 3.5 m, and scrubber diameter of 2.8 m are reasonable and adaptable to the scrubber, which can comply with the required strict desulfurization standard by using the low‐alkalinity seawater (1.42 mmol/L) to scrub the high‐sulfur gas (fuel‐sulfur content of 3.5%) with a moderate liquid/gas ratio of about 6.5 L/Nm3. Under the same gas and seawater conditions, the seawater/lye cascade‐scrubbing model achieves about 38% and 90% reduction respectively in the seawater and alkali consumption as comparing with the once‐through open‐loop and closed‐loop models, respectively.

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Study of diesel fuel desulfurization by adsorption

Cited by 88 publications

References 29 publications

Manganese‐Loaded Activated Carbon for the Removal of Organosulfur Compounds from High‐Sulfur Diesel Fuels

Manganese‐Loaded Activated Carbon for the Removal of Organosulfur Compounds from High‐Sulfur Diesel Fuels

Influence of Metal Oxides Impregnated on Silica—Alumina in the Removal of Sulphur and Nitrogen Compounds from a Hydrotreated Diesel Fuel Stream

Desulfurization performance of a large‐scale marine diesel engine's scrubber with packing scrubbing: Validation of design parameters based on ASPEN PLUS simulations

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