OOO VNIIOS nauka

Russia

OOO VNIIOS nauka

Russia
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Berenblyum A.S.,Lomonosov Moscow University of Fine Chemical Technology | Shamsiev R.S.,Lomonosov Moscow University of Fine Chemical Technology | Podoplelova T.A.,Lomonosov Moscow University of Fine Chemical Technology | Danyushevsky V.Ya.,OOO VNIIOS nauka
Russian Journal of Physical Chemistry A | Year: 2012

The activity and selectivity of palladium, copper, platinum, and nickel catalysts in the decarbonylation of stearic acid into hydrocarbons were studied at a 14 atm hydrogen pressure and temperatures of 300-350°C. If γ-alumina was used as a carrier, the catalysts formed the series Pd > Cu > Pt > Ni according to desired product yields. Quantum-chemical simulation was performed to show that the free energy of activation increased in the same series. The same metals deposited on mixed tungsten and zirconium oxides catalyzed decarbonylation with a low yield of C 17 hydrocarbons, likely because such a superacidic carrier could catalyse cracking of olefins or their oligomers formed. © Pleiades Publishing, Ltd., 2012.


Babash S.E.,OOO VNIIOS nauka | Gus'kov P.o.,OOO VNIIOS nauka | Vints V.V.,OOO VNIIOS nauka | Gurin A.P.,OOO VNIIOS nauka | Vilesov V.K.,OOO VNIIOS nauka
Chemistry and Technology of Fuels and Oils | Year: 2011

A technology is developed for combined pyrolysis of liquefied hydrocarbon gases (LHG) and recycled ethane in separate pyrolysis coils of the same furnace. This technology is desirable when the ethylene production capacity is increased. Comparing the results of the combined pyrolysis of ethane and LHG and their pyrolysis in separate pyrolysis coils showed that ethane must be pyrolyzed separately. The operational regime parameters of the furnace that optimize ethane conversion and the ethylene and propylene yields from ethane and LHG pyrolysis in separate pyrolysis coils are presented. © 2011 Springer Science+Business Media, Inc.

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