Comparison Study for the Distribution of Organo-Sulfur Containing Compounds of Two Kuwaiti Crude Oil Distillates

Behbehani, Haider; Al-Qallaf, M. A.; El‐Dusouqui, Osman M. E.

doi:10.1081/lft-200028261

Cited by 14 publications

(9 citation statements)

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“…This article will discuss the possibility of direct utilization of thiols in petroleum media for the synthesis of vinyl sulfides by metal-catalyzed thiol-yne click reaction. Naturally, thiols are concentrated in light petroleum fractions with the boiling point up to 300 °C in the form of linear, branched, or cyclic aliphatic species and thiophenol [ 2 , 3 ]. Therefore, the catalyst of choice must be active towards aliphatic thiols and, of course, must be tolerant of other compounds in the oil.…”

Section: Resultsmentioning

confidence: 99%

“…Particular attention should be paid to heteroatom-containing organic compounds (N, O, S), which are present in crude oil in up to 10% [ 1 ]. The most common heteroatom in oils is sulfur, which is found in the form of dissolved elemental sulfur, hydrogen sulfide, thiols, sulfides, disulfides, and thiophene derivatives, as well as complex compounds containing various combinations of S, O, and N atoms [ 2 , 3 ]. The average amount of sulfur in oils is approximately 3–4%.…”

Section: Introductionmentioning

confidence: 99%

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ESI-MS Analysis of Thiol-yne Click Reaction in Petroleum Medium

2021

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Petroleum contains a large number of heteroatomic compounds, but today, most of them are not efficiently utilized. The constant development of the sustainability concept recalls for rethinking the usage of fossil resources with improved chemical utility. In order to initiate research aimed at involving active petroleum compounds in chemical transformations, a new analytical method for product detection is needed. Here, we study the click reaction of thiols with alkynes, leading to the formation of α-vinyl sulfides directly in the petroleum environment. The reaction was carried out using an (IMes)Pd(acac)Cl catalyst, which demonstrated tolerance to petroleum components. In this study, the concentration of thiols ranged from 1 M to 0.01 M (from 8% to 0.1%). To detect products at low concentrations, a special alkyne labeled with an imidazole moiety was used. This approach made it possible to observe the formation of vinyl sulfides by electrospray ionization mass spectrometry (ESI-MS), which provides an opportunity for further optimization of the reaction conditions and future developments for the direct involvement of oil components in chemical reactions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ESI-MS Analysis of Thiol-yne Click Reaction in Petroleum Medium

2021

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“…Unlike the broad distribution of sulfur and nitrogen in SARA fractions, V and Ni contained in heavy oil are enriched in resins and asphaltenes. [28][29][30][31][32] More importantly, such a distribution will not change as pyrolysis occurs. 33 According to the balance of metal concentration, the resin and asphaltene fractions originally contained in heavy oil, therefore, can be distinguished from the resin and asphaltene fractions newly formed during pyrolysis.…”

Section: Delayed Coking Is a Pyrolysis-based Demetallization Technologymentioning

confidence: 99%

Demetallization of heavy oil through pyrolysis: A reaction kinetics analysis

et al. 2020

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By tracking the transfer of vanadium and nickel in pyrolysis products, a seven‐lump reaction kinetic model for pyrolysis‐based demetallization of heavy oil was established. During pyrolysis, the demetallization of heavy oil is achieved by condensing metal‐rich resins and asphaltenes to coke. The condensation of oil components originally contained in heavy oil differs greatly in reaction behavior, having the activation energy between 167 and 361 kJ/mol. As the pyrolysis progresses, the newly formed heavy components show a condensation behavior close to that of the light components. Limited by high activation energy and low initial fraction, the condensation of asphaltenes to coke and the resulting removal of metals contained in asphaltenes are hindered. Meanwhile, the condensation of light components has a major contribution to coke formation. An increase in reaction temperature accelerates the demetallization, but hardly changes the yield and component distribution of liquid products at the same metal removal rate.

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“…Dialkyl sulfides are important compounds of wide interest to scientists from viewpoint of analytical, environmental, synthetic, medicine and material science [17][18][19]. The detection of sulfide has gained significant importance within the analytical community as a consequence of toxicological research and the risks associated with occupational exposure [20,21]. The VSCs, such as dialkyl sulfides in a variety of matrices have been analyzed using the headspace solid-phase microextraction coupled with GC [22][23][24].…”

Section: Introductionmentioning

confidence: 99%