Gas chromatographic characterization of sulphur compounds in the 93–162° gasoline cut from romashkino crude oil using kováts retention indices

Agrawal, Bharati; Tesařík, K.; Janák, J.

doi:10.1016/s0021-9673(00)86933-2

Cited by 14 publications

(5 citation statements)

References 23 publications

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“…Since the liquid fraction constitutes only 2.5-26.8 % mass of the total pyrolysis products, the (polynuclear) aromatics represent only trace quantities. Several sulfur compounds were detected with the FPD but could not be identified by GC/MS because of their low concentration and insufficient separation (Agrawal et al, 1972).…”

Section: Resultsmentioning

confidence: 99%

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Steam cracking of hydrocarbons. 6. Effect of dibenzyl sulfide and dibenzyl disulfide on reaction kinetics and coking

Bajus¹,

Baxa²,

Leclercq³

et al. 1983

Ind. Eng. Chem. Prod. Res. Dev.

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. (1983). Steam cracking of hydrocarbons 6. Effect of dibenzyl sulfide and dibenzyl disulfide on reaction kinetics and coking. Industrial and Engineering Chemistry. Product Research and Development, 22(2), 335-343. DOI: 10.1021%2Fi300010a033, 10.1021/i300010a033 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. The influence of aromatic sulfides on the kinetics and selectivity of hydrocarbon conversion by steam cracking and on pyrolytic coke formation was investigated in stainless steel tubular reactors with relatively large inner surface.The rate of decomposition of heptane (at 700 'C, 100 kPa, and a mass ratio of steam to feed 3:l) increased by 16 to 26 % , and the selectivity toward ethene decreased, if 0.1 to 1 .O % mass of dibenzyl sulfide, relative to heptane, was added. Addiiion of 1 % mass dibenzyl disulfide increased the decomposition rate of heptane by 8 % . Increasing amounts of the title compounds (0.1, 0.5% mass) in the feed decreased coking up to 70% in the pyrolysis of reformer raffinate at 820 O C , without steam. The decreased coking in turn caused an increased aromatic content in the liquid pyrolysis product mixtures. Based on the analytical results, obtained by capillary gas chromatography-mass spectrometry, reaction mechanisms are suggested.

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Section: Resultsmentioning

confidence: 99%

“…Several sulfur compounds were detected with the FPD but could not be identified by GC/MS because of their low concentration and insufficient separation (Agrawal et al, 1972).…”

Section: Analysis Of the Liquid Pyrolysis Products Of Reformermentioning

confidence: 99%

Steam cracking of hydrocarbons. 6. Effect of dibenzyl sulfide and dibenzyl disulfide on reaction kinetics and coking

Bajus¹,

Baxa²,

Leclercq³

et al. 1983

Ind. Eng. Chem. Prod. Res. Dev.

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“…Mass ratio steam to heptane02 YO by mass sulfur 0.05 YO by mass sulfur 0.1 YO by mass sulfur = rate constant of pure heptane conversion' Graphic representation of the rate equation for the thermal decomposition of heptane in the presence of: 0 0.02% by mass S; @ 0.05% by mass S;(3 0.1% by mass S; 0 without sulfur". Temperature: 700°C; mass ratio of steam to heptane: 3.…”

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confidence: 99%

Sulfur Compounds in Hydrocarbon Pyrolysis

Bajus

1989

Sulfur reports

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The influence of sulfur compounds on the kinetics and mechanism of the thermal decomposition of hydrocarbons is described. The reactivity of some organic and inorganic sulfur compounds under the conditions of initiated pyrolysis from the viewpoint of acceleration of the radical decomposition of hydrocarbons. selectivity improvement towards the desired alkenes and decrease of secondary reactions, the consequence of which is coke formation, are discussed.

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“…Properly deactivated glass has previously been the most common column material for the gas chromatography of sulfur compounds in cigarette smoke (13)(14)(15)(16). On the other hand, sulfur-containing substances of various functionality have been eluted from stainless steel capillary columns as well (17, 18). The proper choice of column material is related to the polarity of the stationary phase and the absolute amounts of sulfur compounds present in the sample.…”

Section: Discussionmentioning

confidence: 99%

Heart cutting technique in high resolution gas chromatography applied to sulfur compounds in cigarette smoke

Bertsch¹,

Hsu²,

Zlatkis³

1976

Anal. Chem.

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Gas chromatographic characterization of sulphur compounds in the 93–162° gasoline cut from romashkino crude oil using kováts retention indices

Cited by 14 publications

References 23 publications

Steam cracking of hydrocarbons. 6. Effect of dibenzyl sulfide and dibenzyl disulfide on reaction kinetics and coking

Steam cracking of hydrocarbons. 6. Effect of dibenzyl sulfide and dibenzyl disulfide on reaction kinetics and coking

Sulfur Compounds in Hydrocarbon Pyrolysis

Heart cutting technique in high resolution gas chromatography applied to sulfur compounds in cigarette smoke

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