Preparation of synthetic composite nano-catalyst for oxidative desulfurization of kerosene

Mohammed, Hamin J.; Jarullah, Aysar T.; Al-Tabbakh, Ban A.; Hussein, Hala M.

doi:10.1080/15567036.2023.2181890

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…Nevertheless, phenolic compounds are major contaminants that are categorized as carcinogenic and teratogenic materials [1,2]. These compounds are fed into the environment by several industrial facilities such as the oil, polymer, petrochemical, pharmaceutical, paint, and dye industries [3][4][5]. Because water is a scarce commodity around the globe, it is essential to remove toxic contaminants such as phenol from wastewater to reclaim and reuse wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…High acidity, salinity, low biodegradability, and chemical oxygen demand (COD) are the major properties for phenolic compounds [4]. Also, low volatilities and readily formed azeotropes and eutectics are important characterizations for these compounds [5]. Therefore, conventional treatment techniques, such as physical and biological methods, have difficulty treating phenol and its derivatives efficiently [1,6].…”

Section: Introductionmentioning

confidence: 99%

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Design of Nano-Catalyst for Removal of Phenolic Compounds from Wastewater by Oxidation Using Modified Digital Basket Baffle Batch Reactor: Experiments and Modeling

et al. 2023

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Removal of phenol and phenolic compounds from wastewater using various techniques has received considerable attention in recent years. In this work, the removal of phenol from a model solution of phenol via catalytic oxidation is investigated with oxidant H2O2. For this purpose, we designed a new nano-catalyst (8% Fe2O3/AC) by loading iron oxide nanoparticles over nano-activated carbon via the impregnation process. We modified the recently developed digital basket baffle batch reactor (DBBBR) and used it for the catalytic oxidation process in order to examine the activity of the prepared nano-catalyst. The highest efficiency of phenol removal was found to be 95.35% under the following parameters: oxidation time of 120 min, oxidation temperature at 85 °C, and stirrer speed of 600 rpm. The minimization of the sum of the squared error between the experimental data and predicted results of phenol removal was considered as a base for the optimization technique to estimate the optimal parameters for the kinetic process. The predicted conversion of phenol excellently agreed with the experimental results (absolute average errors < 5%) for a wide range of process parameters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of Nano-Catalyst for Removal of Phenolic Compounds from Wastewater by Oxidation Using Modified Digital Basket Baffle Batch Reactor: Experiments and Modeling

et al. 2023

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Experimental Design of Oxidative Desulfurization of Kerosene Through Response Surface Methodology (RSM)

Jarullah

Mohammed

2023

Tikrit j. eng. sci.

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Sulfur compound content in fuels is one of the most undesirable pollutions regarding standard environmental regulations that demand to reduce sulfur concentration limit to 5-10% in fuels. Hence, kerosene’s oxidative desulfurization (ODS) as a model fuel (sulfur content 1158ppm) with air as an oxidant is studied. The goal of the study is to use two different synthesized nanosilica-supported catalysts, CuO/SiO2 (CAT-1) and CuO/TiO2-SiO2 (CAT-2), for the ODS of kerosene. Thirty-two experimental runs were designed via Central Composite Design (CCD) to select the experiments that will be utilized most efficiently. The analysis of variance (ANOVA) was used for statistical analysis to determine the models’ significance. The Response surface methodology (RSM) was used to determine the optimum conditions and parameters significantly affecting the response. Temperature and time are two variables studied due to their impact on oxidative desulfurization. The actual results of sulfur conversion in kerosene from lab experiments were 87% with a sulfur content of 153.3ppm and 99.22% with a sulfur content of 8.9ppm by CAT-1 and CAT-2, respectively, at conditions of 140°C and 100min. The predicted results from experimental design were 86.66% and 99.8% by CAT-1 and CAT-2 at conditions of 140°C and 100min, showing errors less than 3.1% and 1.2% for CAT-1 and CAT-2, respectively, from ANOVA. The optimal parameters of ODS were determined through the sulfur conversion maximization by numerical optimization via ANOVA. The results showed that the maximum conversion by CAT-1 was 99.5% at 140 min and 180°C, and by CAT-2 was 99.7% at 100.1 min and 140.1°C. Also, the rate data were fitted with an empirical kinetic model. The results showed that CAT-1 and CAT-2 activation energies were Ea= 28.2 kJ/mol and Ea= 38.7 kJ/mol, respectively.

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Synthesis, Design and Evaluation of Innovative Combined Nano-Catalysts Supported on Activated Carbon Prepared from Apricot Shells

Hameed,

Ben Amar,

Hamad

et al. 2023

Tikrit j. eng. sci.

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Clean fuel oil is crucial for a healthy environment and modern life. Therefore, removing sulfur-containing compounds is an effective issue using various techniques for desulfurization. In this study, the oxidation desulfurization (ODS) process was utilized with respect to the prepared new activated carbon (AC) made from apricot shells (AS) loaded by two combined active metals (Nickel-Cobalt-Manganese (NCM) and Nickel-Cobalt-Manganese-Molybdenum (NCMM)). Several characteristics related to the catalysts prepared (mainly SBET, pore volume, FTIR, TGA, SEM, EDX and XRD) have been investigated to analyze the produced nanocatalysts. The new nanocatalysts (NCM/AC and NCMM/AC) were generated by using the impregnation wetness incipient (IWI) method and evaluated for their ability to remove sulfur compounds from whole-cut fuel (from 29-345 °C) based on the air as an oxidant within batch reactor under the following conditions: air flow rate = 2 lit/min, reaction temperature = 90 °C, and reaction time of 60 min for both catalysts. It was found that Nano catalyst NCMM/AC performed better overall in removing sulfur components (57.29 %) than Nano catalyst NCM/AC (44.75 %), and excellent properties have been observed.

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Preparation of synthetic composite nano-catalyst for oxidative desulfurization of kerosene

Cited by 3 publications

References 29 publications

Design of Nano-Catalyst for Removal of Phenolic Compounds from Wastewater by Oxidation Using Modified Digital Basket Baffle Batch Reactor: Experiments and Modeling

Design of Nano-Catalyst for Removal of Phenolic Compounds from Wastewater by Oxidation Using Modified Digital Basket Baffle Batch Reactor: Experiments and Modeling

Experimental Design of Oxidative Desulfurization of Kerosene Through Response Surface Methodology (RSM)

Synthesis, Design and Evaluation of Innovative Combined Nano-Catalysts Supported on Activated Carbon Prepared from Apricot Shells

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