Preparation of synthetic steamcracker feed from cycloalkanes (or aromatics) on zeolite catalysts

Weitkamp, Jens; Raichle, Andreas; Traa, Yvonne; Rupp, Martin; Fuder, Franz

doi:10.1039/a910284l

Cited by 33 publications

(22 citation statements)

References 5 publications

(3 reference statements)

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“…Ring opening reactions are also interesting to produce synthetic steam cracker feed from aromatic-rich pyrolysis gasoline, as investigated by Weitkamp et al [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation and Ring Opening of Aromatic and Naphthenic Hydrocarbons Over Noble Metal (Ir, Pt, Rh)/Al2O3 Catalysts

et al. 2012

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The hydrogenation and ring opening of model hydrocarbons and of naphtha was studied over commercial noble metal (Ir, Pt, Rh)/Al 2 O 3 catalysts. The experiments were performed in a fixed bed reactor at temperatures between 220 and 350°C and pressures of 1.1 and 5.0 MPa, respectively. The product distribution was determined and the cetane number was calculated. The Pt catalyst is very active for hydrogenation of aromatics but does not catalyse the ring opening of naphthenes. The Ir and Rh catalysts are active for both hydrogenation of aromatics and ring opening of naphthenes. Experiments with toluene, mxylene, propyl-benzene, and methylcyclohexane indicate that ring opening follows a selective mechanism, where the cleavage of bisecondary carbon bonds is favoured. This results in predominant formation of branched paraffins. The product distribution as well as cracking of long-chain hydrocarbons, which increase at temperatures above 260°C, lead to an insignificant boost in the cetane number, as confirmed by experiments using real naphtha as feedstock.

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“…Ring opening reactions are also interesting to produce synthetic steam cracker feed from aromatic-rich pyrolysis gasoline, as investigated by Weitkamp et al [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation and Ring Opening of Aromatic and Naphthenic Hydrocarbons Over Noble Metal (Ir, Pt, Rh)/Al2O3 Catalysts

et al. 2012

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“…1 Oxidative cracking of paraffins proceeds through the formation of special activated oxygen species reacting with molecules of gaseous paraffin [5,6,8,9]. Therefore, these points could be integrated in one question: How did these factors provide low temperature oxygen activation?…”

Section: Resultsmentioning

confidence: 99%

“…Despite intensive development of selective dehydrogenation of paraffins, the high temperature destructive methods like steam cracking and pyrolysis at 800-900 8C still remain, as before, the main methods for production of ethylene and propylene [1]. However, high energy consumption required for the endothermic cracking process and deposition of coke on the reactor walls that hampers heat transfer and leads to an increase of the pressure drop are the chief drawbacks, among many others, in steam cracking.…”

Section: Introductionmentioning

confidence: 96%

Highly effective oxidative cracking of n-butane in light olefins on a novel cobalt catalyst

Kaliya

Kogan

2005

Catalysis Today

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“…Lower olefins are the basic raw material for chemi cal industry [1]. At the start of 2012, the world produc tion capacity for ethylene alone exceeded 140 million tons [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of oxygen concentration on the oxidative conversion of propane

Pogosyan

Arsentiev

et al. 2015

Russ. J. Phys. Chem. B

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The influence of the initial concentration of oxygen and temperature on the oxidative conversion of propane in a two sectional flow reactor at constant pressure and contact time was studied. It was shown that an increase in the initial concentration of oxygen not only increases the conversion of propane, but also affects the ratio of the reaction products. The yield of ethylene and propylene was found to depend on the initial propane to oxygen ratio and reaction temperature.

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Preparation of synthetic steamcracker feed from cycloalkanes (or aromatics) on zeolite catalysts

Cited by 33 publications

References 5 publications

Hydrogenation and Ring Opening of Aromatic and Naphthenic Hydrocarbons Over Noble Metal (Ir, Pt, Rh)/Al2O3 Catalysts

Hydrogenation and Ring Opening of Aromatic and Naphthenic Hydrocarbons Over Noble Metal (Ir, Pt, Rh)/Al2O3 Catalysts

Highly effective oxidative cracking of n-butane in light olefins on a novel cobalt catalyst

Effect of oxygen concentration on the oxidative conversion of propane

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