A comparative study on the transalkylation of diisopropylbenzene with benzene over several zeolitic materials in supercritical CO2 and liquid phase

Sotelo, J.L.; Calvo, Lourdes; Velázquez, A.; Capilla, D.; Cavani, Fabrizio; Bolognini, M

doi:10.1016/j.apcata.2006.06.050

Cited by 18 publications

(13 citation statements)

References 23 publications

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“…The positive effect of supercritical carbon dioxide on the transalkylation of diisopropylbenzene was found with benzene on zeolites BEA, Y, and mordenite under liquid, subcritical, and supercritical conditions [196]. The transalkylation rates were not increased with pressure.…”

Section: Fig 21mentioning

confidence: 94%

Further Steps of Zeolites Toward Industrial Applications

Кustov

Kuperman

Kustov

2016

Zeolites and Zeolite-Like Materials

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Section: Fig 21mentioning

confidence: 94%

Further Steps of Zeolites Toward Industrial Applications

Кustov

Kuperman

Kustov

2016

Zeolites and Zeolite-Like Materials

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“…Although SCF provides better mass-transfer than the subcritical one because of high diffusivity of SCF, subcritical treatment can produce relatively similar results, compared with supercritical fluid treatment in extraction abilities and chemical reaction rates for the production and decomposition (Ginneken et al 2003;Sotelo et al 2006;Ehara and Saka 2005). Ginneken et al (2003) reported on the effect of subcritical (liquid) and supercritical CO 2 treatments on treatments and on the leaching behavior of a cementitious waste.…”

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confidence: 93%

“…This fast penetration of supercritical CO 2 due to the high diffusivity of supercritical CO 2 is one to two orders of magnitude higher than that of liquid CO 2 , but the solubility of heavy organics may be lower, leading to changes in product selectivity. Sotelo et al (2006) proved that the trans-alkylation rate was not accelerated by increasing pressure from subcritical to supercritical condition.…”

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confidence: 95%

Cyproconazole impregnation into wood using sub- and supercritical carbon dioxide

Kang

Cho²,

Kim

et al. 2011

Wood Sci Technol

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Supercritical fluid (SCF) impregnation is a promising preservative treatment method for wood. In order to commercialize the sub-and supercritical CO 2 biocide treatment, better understanding of the fluid phase and its effect on treatment results have to be demonstrated and developed. Preservative treatability under super-and subcritical fluid conditions was evaluated using radiata pine sapwood, and treating characteristics in relation to different fluid phases and treatability were discussed. Various treatment conditions resulted in varying biocide retentions and distributions. Higher pressure conditions enhanced biocide retentions resulting from increasing biocide input in the applied saturation method. Subcritical CO 2 condition produced higher biocide retentions and little retention gradients from face to core. Subcritical CO 2 treatment has a couple of benefits such as investment costs and energy consumption compared with supercritical CO 2 .

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“…In another paper Serra et al 17 studied the influence of zeolite structure on the performance of heavy reformate transalkylation catalysts. Recently Sotelo et al 18 made a comparative study on transalkylation of DIPB with benzene over beta, Y and mordenite with different aluminium content (or Si/Al ratio) in supercritical CO 2 and liquid phase. The influence of Si/Al ratio on the catalytic activity was explained in terms of cumene yield and selectivity, taking into account the competitive isomerization and by‐product formation.…”

Section: Introductionmentioning

confidence: 99%