Oxidative desulphurization of gasoline fractions from Azerbaijani oils

2020 ◽  
pp. 48-52
Author(s):  
Kh.I. Talybova ◽  
◽  
S.F. Ahmadbeyova ◽  
N.K. Andryushchenko ◽  
Z.B. Babaeva ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Octane Number ◽  
Catalytic Cracking ◽  
Sulfur Compounds ◽  
Direct Oxidation ◽  
Oxidative Desulphurization ◽  
Oxidation Of Sulfur Compounds

The paper studies the process of oxidative desulphurization of catalytic cracking and coking gasoline types and their close cut fractions. Direct oxidation studies of these gasoline fractions using hydrogen peroxide in the presence of heterogenic catalysts containing Mo and Co ions have been carried out for the oxidation of sulfur compounds and their further extraction via ion fluids enabling extraction of sulfur-organic compounds in the form of concentrates of oily sulfoxides and sulfanoles. Thus, desulfurization degree of gasoline fractions comprises 70-80 % - ultimately without change in gasoline octane number.

Non-hydrolytic synthesis of mesoporous silica–titania catalysts for the mild oxidation of sulfur compounds with hydrogen peroxide

2008 ◽  
pp. 5357 ◽  
Author(s):  
Ana Mihaela Cojocariu ◽  
P. Hubert Mutin ◽  
Emil Dumitriu ◽  
François Fajula ◽  
André Vioux ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Mesoporous Silica ◽  
Sulfur Compounds ◽  
Mild Oxidation ◽  
Oxidation Of Sulfur Compounds

scholarly journals Identification of Volatile Sulfur Compounds Produced by Schizophyllum commune

2021 ◽  
Vol 7 (6) ◽  
pp. 465
Author(s):  
Takahito Toyotome ◽  
Masahiko Takino ◽  
Masahiro Takaya ◽  
Maki Yahiro ◽  
Katsuhiko Kamei
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Lead Acetate ◽  
Schizophyllum Commune ◽  
Dimethyl Disulfide ◽  
Sulfur Compounds ◽  
Volatile Sulfur Compounds ◽  
Volatile Organic ◽  
Allergic Bronchopulmonary Mycosis ◽  
Volatile Sulfur

Schizophyllum commune is a causative agent of allergic bronchopulmonary mycosis, allergic fungal rhinosinusitis, and basidiomycosis. Diagnosis of these diseases remains difficult because no commercially available tool exists to identify the pathogen. Unique volatile organic compounds produced by a pathogen might be useful for non-invasive diagnosis. Here, we explored microbial volatile organic compounds produced by S. commune. Volatile sulfur compounds, dimethyl disulfide (48 of 49 strains) and methyl ethyl disulfide (49 of 49 strains), diethyl disulfide (34 of 49 strains), dimethyl trisulfide (40 of 49 strains), and dimethyl tetrasulfide (32 of 49 strains) were detected from headspace air in S. commune cultured vials. Every S. commune strain produced at least one volatile sulfur compound analyzed in this study. Those volatile sulfur compounds were not detected from the cultures of Aspergillus spp. (A. fumigatus, A. flavus, A. niger, and A. terreus), which are other major causative agents of allergic bronchopulmonary mycosis. The last, we examined H2S detection using lead acetate paper. Headspace air from S. commune rapidly turned the lead acetate paper black. These results suggest that those volatile sulfur compounds are potent targets for the diagnosis of S. commune and infectious diseases.

Destruction of Pollutants and Microorganisms in Water by UV Light and Hydrogen Peroxide

1992 ◽  
Vol 27 (1) ◽  
pp. 57-68 ◽  
Author(s):  
D.W. Sundstrom ◽  
B.A. Weir ◽  
T. A. Barber ◽  
H. E. Klei
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Chemical Structure ◽  
Uv Light ◽  
Liquid Films ◽  
Strong Interactions ◽  
Order Kinetic ◽  
E Coli ◽  
Order Kinetic Model ◽  
Catalyzed Oxidation

Abstract This project investigated the destruction of organic compounds and microorganisms in water by ultraviolet catalyzed oxidation using hydrogen peroxide as the oxidizing agent. The combination of UV light and hydrogen peroxide was effective in decomposing all of the organic compounds studied. The rates of destruction increased with increasing peroxide concentration and UV light intensity, and were highly dependent on chemical structure. The destruction of mixtures of organic compounds showed strong interactions between reacting components. The inactivation of E. coli and B. subtilis spores by UV light and/or hydrogen peroxide was studied in flat plate reactors. By using thin liquid films, the combination of UV light and peroxide greatly increased the rates of inactivation of both microorganisms. The results were correlated by a mixed second order kinetic model.

Hypergolic propellants based on hydrogen peroxide and organic compounds: historical aspect and current state

2018 ◽  
Vol 67 (11) ◽  
pp. 1943-1954 ◽  
Author(s):  
Sh. L. Guseinov ◽  
S. G. Fedorov ◽  
V. A. Kosykh ◽  
P. A. Storozhenko
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Historical Aspect ◽  
Current State ◽  
Hypergolic Propellants

scholarly journals A facile and effective method for preparation of 2.5-furandicarboxylic acid via hydrogen peroxide direct oxidation of 5-hydroxymethylfurfural

2017 ◽  
Vol 19 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Shuang Zhang ◽  
Long Zhang
Keyword(s):  
Hydrogen Peroxide ◽  
Reaction Time ◽  
Oxidation Mechanism ◽  
Molar Ratio ◽  
Alkaline Condition ◽  
Optimal Parameters ◽  
Direct Oxidation ◽  
Reaction Parameters ◽  
Alkaline Conditions ◽  
Furandicarboxylic Acid

Abstract In this paper, 2,5-furandicarboxylic acid (FDCA) was efficiently prepared by the direct oxidation of 5-hydroxymethylfurfural (5-HMF) using hydrogen peroxide (H2O2) in alkaline conditions without any catalysts. The effects of reaction parameters on the process were systematically investigated and the optimal parameters were obtained as follows: molar ratio of 5-HMF:KOH:H2O2 was 1:4:8, reaction temperature and reaction time were determined as 70°C and 15 minutes, respectively. Under these conditions, the yield of FDCA was 55.6% and the purity of FDCA could reach 99%. Moreover, we have speculated the detailed oxidation mechanism of 5-HMF assisted by hydrogen peroxide in alkaline condition to synthesize FDCA.

Biological oxidation of sulfur compounds in artificially degraded wood

2019 ◽  
Vol 141 ◽  
pp. 62-70 ◽  
Author(s):  
Magdalena Albelda Berenguer ◽  
Mathilde Monachon ◽  
Clémentine Jacquet ◽  
Pilar Junier ◽  
Céline Rémazeilles ◽  
...  
Keyword(s):  
Sulfur Compounds ◽  
Biological Oxidation ◽  
Oxidation Of Sulfur Compounds
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