Ultra-deep desulphurization of both model and commercial diesel fuels by adsorption method

Mguni, Liberty L.; Yao, Yali; Liu, Xinying; Yuan, Zhong‐Yong; Hildebrandt, Diane

doi:10.1016/j.jece.2019.102957

Cited by 31 publications

(21 citation statements)

References 36 publications

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“…The presence of sulphur in diesel fuel forms SO2 and SO3 during the combustion process, which are then released into the atmosphere. These gases react with water to form sulphates and acid rain that is harmful to the environment [85]. Moreover, current treatment technologies for the emissions of the diesel engine exhaust gases are based on catalytic converters, whose efficacy is severely affected by sulphur level [86].…”

Section: Polycyclic Aromatic Hydrocarbons Sulphur Water and CL Contentmentioning

confidence: 99%

Characterization and Distillation of Pyrolysis Liquids Coming from Polyolefins Segregated of MSW for Their Use as Automotive Diesel Fuel

Gala¹,

Guerrero²,

Guirao

et al. 2020

Energy Fuels

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The liquids resulting from pyrolysis of industrial plastic waste (IPW) and post-consumer colour and white plastic film waste (PCPW and PWPW, respectively) at pilot scale (80 kg/h) were widely 2 characterized by different techniques in order to assess their potential as both petrochemical raw material and automotive diesel fuel. It was found that pyrolysis liquids mainly consisted of hydrocarbons in the diesel boiling point range (180-380 ºC), amounting to approximately 50-55 % (in vol.). Therefore, the results were further contrasted with limits established by EN 590:2014 + A1:2017 standard for automotive diesel fuel. Although pyrolysis liquids showed good properties, they do not conform with some key fuel parameters for diesel engines, such as density, distillation curve, kinematic viscosity, flash point and cold filter plugging point. In order to improve these properties, PWPW pyrolysis liquids were distilled in the diesel range and the liquid fractions were characterized according to automotive diesel standards. It was found that the diesel fraction met all specifications with the exception of cold filter plugging point (-10 ºC to 4 ºC vs. -10 ºC winter/0 ºC summer) and density (800-807 kg/m 3 vs. 820 kg/m 3 ). To accomplish with standards, a blend of diesel obtained from PWPW pyrolysis liquids and commercial diesel (50/50 wt. %) was also prepared and analysed. Results revealed that the blend met the requirements of the 21 parameters demanded by the standard for a product to be marketed and used as automotive fuel in diesel engine vehicles.

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Section: Polycyclic Aromatic Hydrocarbons Sulphur Water and CL Contentmentioning

confidence: 99%

Characterization and Distillation of Pyrolysis Liquids Coming from Polyolefins Segregated of MSW for Their Use as Automotive Diesel Fuel

Gala¹,

Guerrero²,

Guirao

et al. 2020

Energy Fuels

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show abstract

“…They are the most harmful sulfurcarry compounds in gasoline, not only due to their unpleasant-smell and corroding (Gao et al, 2009;Zhang et al, 2013) but also to the degrading gasoline quality by enhancing the production of gum (Wang et al, 2014). The sulfur compounds in gasoline could generate pollution in the environment because their combustion emits sulfur dioxide in the atmosphere, which generates acid rain leading to environmental hazards (Daraee et al, 2021;Mguni et al, 2019;Mohebbi and Mohebbi, 2017).…”

Section: Introductionmentioning

confidence: 99%

Adsorption performance and mechanisms of mercaptans removal from gasoline oil using core-shell AC-based adsorbents: Role of intra-particles space

Ndagijimana

Liu

et al. 2021

Preprint

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Sulfur compound detection such as mercaptans in liquid fuels is undesirable because sulfur is the main sourcing emission of sulfur oxide (SOx) into the air. The use of activated carbon (AC) has proven to efficiently remove mercaptans. In the meantime, it is limited by the generation of the second pollution in oil, and the difficulties of recovery and regeneration. To address these issues, a core-shell structured AC with high mechanical strength and big intra-particles space were synthesized and demonstrated to efficiently remove organic pollutants from an aqueous solution without generation of the second pollution in our previous work. However, the performance, characteristics, and mechanism of mercaptans adsorption from gasoline oil by core-shell structured AC was still unclear. In this study, the mercaptans adsorption behaviors using core-shell powdered activated carbon (CSAC) and core-shell granulated activated carbon (CSGAC), along with raw PAC, PAC-core, raw GAC, and GAC-core were carried out. The results showed that both the CSAC and CSGAC adsorbents effectively removed sulfur-based pollutants and were provided with good recovery and recyclability without second pollution in gasoline oil. The CSGAC exhibited a higher mercaptans removal efficiency compared to those of CSAC as a result of the bigger intra-particles space. PAC-based adsorbents, presented the shrinking of removal efficiency after regeneration. The Pseudo-second-order kinetics and Langmuir isotherms models were dominated for mercaptans adsorption by both CSAC and CSGAC. Furthermore, the interactions between mercaptans and the composites were probably ascribed to the Van der Waals force, hydrophobic compatibility, pore texture, and π-π dispersion interaction.

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“…Several alternative separation processes have been reported in the literature to replace the hydrotreatment process, such as adsorptive desulfurization, oxidative desulfurization, and biological desulfurization. 10 , 11 , 13 − 15 Solvent extraction technique is an attractive process as it has benign operating conditions because it can be operated at moderate temperature and pressure. 11 , 14 , 15 However, one of the major challenges in using this technique is to select the ideal solvents that would have high selectivity and capacity toward both sulfur and nitrogen compounds.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Extraction of Sulfur and Nitrogen Compounds from Model Diesel Fuel Using Neoteric Green Solvents

et al. 2021

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Removal of nitrogen and sulfur compounds from diesel fuel is essential to comply with the increasing stringent regulations. The extraction capability of two deep eutectic solvents, namely, tetrabutylphosphoniumbromide/ethylene glycol, TBPBr/EG, with molar ratio 1:2, and tetrabutylammoniumbromide/ethylene glycol, TBABr/EG, with molar ratio 1:2, in simultaneously extracting basic nitrogen, nonbasic nitrogen, and sulfur compounds represented by pyridine, indoline, and dibenzothiophene (DBT) from n -hexadecane, was investigated. Two pseudo-ternary phase diagrams of (TBPBr/EG + (pyridine + indoline + DBT) + n -hexadecane) and (TBABr/EG + (pyridine + indoline + DBT) + n -hexadecane) were predicted via a conductor-like screening model for real solvents (COSMO-RS) and experimentally validated at 298.15 K and 1 atm. Both solvents showed zero cross-contamination, indicating the suitability of all solvents as extraction solvents. The tie lines obtained for both COSMO-RS and experiments were in agreement and had root-mean-square deviation (RMSD) values of less than 5% for both systems. Selectivity and distribution ratio calculated indicates the suitability of both solvents in extracting sulfur and nitrogen compounds from hexadecane. Two new parameters, namely, extraction efficiency, α, and extraction affinity, β, were introduced to ease the performance comparison of both solvents. TBPBr/EG shows a slightly better performance than TBABr/EG. Other than that, the presence of multiple solutes shows low effects on the performance of these solvents.

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Ultra-deep desulphurization of both model and commercial diesel fuels by adsorption method

Cited by 31 publications

References 36 publications

Characterization and Distillation of Pyrolysis Liquids Coming from Polyolefins Segregated of MSW for Their Use as Automotive Diesel Fuel

Characterization and Distillation of Pyrolysis Liquids Coming from Polyolefins Segregated of MSW for Their Use as Automotive Diesel Fuel

Adsorption performance and mechanisms of mercaptans removal from gasoline oil using core-shell AC-based adsorbents: Role of intra-particles space

Simultaneous Extraction of Sulfur and Nitrogen Compounds from Model Diesel Fuel Using Neoteric Green Solvents

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